All brace connections must be secured to prevent dislodging. Guardrails must be installed on scaffolding over 10'. Check the level again and plumb if necessary. While sitting or kneeling on a fixed deck plank attached to a fabricated frame scaffold, a worker was pulling a 16-foot long 2x4 off the bucket of an excavator. The base and mud sill must provide a solid surface for the feet to sit upon so that the scaffold doesn't sink, move, settle, or shift. The correct procedures for dealing with those hazards. . Learn how your comment data is processed. Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, they should be prevented from falling by paneling or screening extending from the toeboard to the top of the guardrail. Attach tags at the access point of the scaffold. If using wooden planks, they must extend beyond the supporting This set of regulations covers details that must be paid attention to when erecting, moving and dismantling a scaffold as well as measures that must be taken to ensure the safety of all those present on or in the vicinity of the tower. A scaffold can be overloaded by [. Scaffolds must not be close enough to overhead power lines that they, or any conductive materials (e.g. [, Slip-resistant surfaces on treads and landings. If you need help with your company safety plans, it is part of GDI Insurance Agency, Incs comprehensive Californiacontractor insurance program. A scaffold must be erected "plumb, square, and level," because: - Ans-If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. Too much material being stored on the platform. [, Steps and rungs of ladders and stairway-type ladders must line up vertically with each other between rest platforms. Footing. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. . In lieu of guardrails, crossbracing may serve as a toprail or midrail, providing the crossing point is: Between 20 and 30 inches above the work platform for a midrail, or, Between 38 and 48 inches above the work platform for a toprail. All joints must be Requirements to prevent falls that apply only to these workers are addressed separately below. The number one scaffold hazard is worker falls. Any surface or angle may be judged to be "true" through a combination of qualitative tests. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 foot rule should always be applied. [, Uniform tread depth, within -inch, for each flight of stairs. (F) Tubular welded frame scaffolds. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. [, In addition to meeting the requirements of, When vertical lifelines are used, they must be fastened to a fixed safe point of anchorage, independent of the scaffold, and be protected from sharp edges and abrasion. Avoid propping the scaffolding frames up on the side of the bed. Personal fall protection must be required and provided by the employer where the installation and use of such protection is feasible and does not create a greater hazard. He fell, sustaining a concussion for which he was hospitalized. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. Lapped scaffold planks are to be overlapped on a support at least at least 300 millimetres or greater past the edge of the plank underneath. It's best to have everything as low as possible so parts don't get blown or bounced out. Toeboards must be capable of withstanding at least 50 pounds applied in a downward or outward direction. Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. Point loading, or concentrating too much of the load in one area. If solid sawn wood is used, it must be scaffold grade. Is erected plumb and level. Greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs). Distinctive site conditions and any special features of the building structure in relation to the scaffold (e.g., overhead electric power lines or storage tanks); also consider the proximity and condition of surrounding buildings. See Appendix A of Subpart L for non-mandatory toeboard guidelines. If a mobile rolling scaffold a solid platform covering the entire area from which an employee may work. Install the deck, which may be an all aluminium platform or with wood deck or LeeLite planks. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. [, Wooden planking must not be covered with opaque finishes, except that platform edges may be marked for identification. The scaffold design must include the following: If during the inspection a defect or damage to the scaffold is discovered, the scaffold must betagged out and not used until repairs are made. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. Follow all state, local and federal codes, ordinance and regulations pertaining to scaffolding. [. Verifies trueness of structure with plumb bob and carpenter's level. Insufficient length. Hardware should be included to fasten the planks into place. Plumb and level all scaffolds as erection proceeds. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. System Scaffolding. Haul Scaffolding Safely. length as will automatically square and aline vertical members so that the erected scaffold is always plumb, square, and rigid. A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 "General Requirements for Scaffolds" and 29 CFR 1926.452 "Additional . General Guidelines. Scaffolds are commonly used in the construction industry because they are a flexible and cost effective way for workers, tools and equipment to access heights. The following procedures will cover all scaffolding erected, . Screw jacks must be used to level scaffolding on uneven surfaces. We need to follow scaffolding safety procedures. They should be installed along all open sides and at both ends of platforms, except when used as a walkway, the platform is the main working area of the scaffold. (True or False) _____ 2. Don't use bricks, blocks, barrels, or other unstable objects to level a scaffold. Because the frames are stacked, the cross braces have to keep the scaffold plumb, level, and square. Tip: One way to ensure a stable foundation, when a sill is used, is to secure it to the baseplate (Figure 2). (Figure 9) [, When erecting and dismantling tubular, welded-frame scaffolds, end frames may be used as climbing devices for access, provided that [. Most screw jacks will have a built-in stop so that the maximum height cannot be exceeded. There are two kinds of falling object hazards associated with scaffolds. 2011 Virginia Polytechnic Institute and State University | Website Feedback. Catenary Scoffold. [, When horizontal lifelines are used, they are to be secured to two or more structural members of the scaffold. Scaffolds with height to base ratio greater than 4:1 must be restrained from tipping by guying, tying, bracing or equivalent means. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. [, Employers are required to provide safe access for employees erecting or dismantling supported scaffolds where it is feasible, and where it does not create a greater hazard. In addition, there is a lot of information regarding building your own scaffold towers on the Internet. [, Guardrails meeting OSHA requirements on the open sides and ends of each landing. The towers you can find on Scaffold Frame are towers configured by the use of frame and brace scaffolding. The employer must provide suitable access to and between scaffolds, such as portable ladders, hook-on ladders, attachable ladders and stairway-type ladders. . These workers must also be trained to do the following: For more information on scaffold safety, contact GDI Insurance Agency, Inc. and visit OSHAs Safety and Health Topics page at www.osha.gov/SLTC/scaffolding/. The technical storage or access that is used exclusively for statistical purposes. Warped. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. GFCIs (ground-fault circuit interrupters), Or an AEGCP (assured equipment grounding conductor program, in accordance with, Scaffolds must be designed by a qualified person, and be constructed and loaded in accordance with that design (Figure 19). Prepares layout, using rule, framing square, and calipers. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . Consider such platforms for added stability and safety. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms, and That's one of the reasons why we need to keep it inspected - for safety sake! Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Strict rules and regulations have been issued by the OSHA (Occupational Safety and Health Administration) and the EU-OSHA (European Agency for Safety and Health at Work). (. Guardrails May Have Saved Him, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Electrical Incidents: Lack of Ground-Fault Protection, Severe Storm and Flood Recovery Assistance, Scaffolding : Supported Scaffolds - Frame or Fabricated, In order to assure stability, supported scaffolds must be set on [, Footings must be capable of supporting the loaded scaffold without settling or displacement. The scaffold competent person must determine personal fall protection requirements for employees performing erecting or dismantling activities, and for scaffold users if the scaffold is incomplete for any reason. Supported scaffold poles, legs, posts, frames, and uprights shall bear on base plates and mud sills (or other adequate firm foundation). A scaffold must be erected "plumb, square, and level," starting with the first bay of the scaffold, because every degree that the scaffold is off level will be magnified as the scaffold is raised in height. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. NOTE: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds as well as the specialty scaffolds described in the Supported Scaffolds module. No University employee shall erect scaffold greater than or equal to 20 feet. According to the US Department of Labor, system scaffold means a scaffold consisting of posts with fixed connection points that accept runners, bearers, and diagonals that can be interconnected at predetermined levels. The maximum intended load and the load-carrying capacity of the scaffold. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. Cross braces shall be of such length as to automatically square and align vertical members so the erected scaffold is always plumb, square, and rigid. Review blueprints, work orders, the project schedule and other written requirements to determine where these scaffolds should be used. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. Only trained and authorized persons should be allowed to use a scaffold. This will have an impact on what components you will need as well as how many of each component will be necessary to complete your tasks. Basically this is referring to a stand alone structure with platform. Support scaffold footings must be level and capable of supporting the loaded scaffold. A tube and coupler scaffold has a platform(s) supported by tubing, and is erected with coupling devices connecting uprights, braces, bearers and runners. Fasten the screw jack to the sills with either nails or screws. Integral (built-in) scaffold access frames must: Stair towers (scaffold stairway/towers) must have (Figure 7): Direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. When platform units are abutted together to create a long platform, each abutted end must rest on a separate support surface. To be specific, a "true" surface is as "plumb" or as "level" as the job requires (which, in most cases, is a perfect level of both or either). He fell 16 feet to the ground, sustaining facial fractures and other injuries. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold They may, however, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes. The space between planks cannot exceed 1 inch, except where necessary for obstructions. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. Specific requirements are described below. Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. (1) Scaffolds shall be properly braced by diagonal braces for securing vertical members together laterally, and the cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. Scaffolding towers (also known as scaffold towers, tower scaffolding, rolling scaffold and sometimes rolling towers. Also, note that the planks are bowing because the bricks are loaded at one point on the platform instead of being evenly distributed. Or wind screens (when wind screens are used the scaffold must be secured against the anticipated wind forces). shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, square, and rigid. Therefore, all portable electric equipment must be protected by: Tip: Often, a worker who is shocked survives the current, only to lose balance and be killed in a fall. [, Guys, ties, and braces must be installed according to the scaffold manufacturer's recommendations or at the closest horizontal member to the 4:1 height ratio and be repeated every 20 vertical feet for narrow scaffolds (3 feet or less in width), and every 26 vertical feet for scaffolds greater than 3 feet in width. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. [. bucks) must be joined together vertically by coupling or stacking pins (or equivalent means). The drawback to stairways, however, is the amount of space they are likely to take up in the overall structure. [, Ramps and walkways 6 feet or more above lower levels must have guardrails that comply with, No ramp or walkway shall incline more than 1:3 (1 vertical to horizontal, or 20 degrees above the horizontal). Materials being hoisted onto a scaffold must Bracing Connect panels and frames with diagonal, horizontal, or cross braces along or as a combination, in order to laterally secure the vertical members. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. [, As frames are stacked, cross braces must be of such length as will automatically keep the scaffold plumb, level, and square. Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. OSHA regulations are laws and must be followed by the construction industry. The top edge height of toprails on supported scaffolds must be between 36 inches and 45 inches. The objective is to reduce the tripping hazard by having the ends of the top layer of planks form a straight line, rather than a saw-toothed edge, which increases tripping hazards. Next, select the appropriate-sized scaffold for each job. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Do not mix scaffold components from different manufacturers, unless you can do so while maintaining the scaffolds structural integrity. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding. Even if they are "in the way," braces should not be removed while work is being performed on a scaffold! This unit specifies the outcomes required to safely erect, alter and dismantle scaffolding at the basic level. This would be in reference to stand alone scaffold towers. [, Scaffolds over 125 feet (38.0m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. To ensure the scaffold is "square", use a tape measure and measure the distance between opposite corners. In general, a level is the easiest way to achieve the desired right angles. [, Forklifts shall not be used to support scaffold platforms unless [. Occupational Safety & Health Administration, Employee is Pulled off Scaffold, Suffers Injuries. [, Each toprail or equivalent member of a guardrail system must be able to withstand a force of at least 200 pounds applied in any downward or horizontal direction, at any point along its top edge. A toeboard shall be erected along the edge of platforms more than 10 feet above lower levels for a distance sufficient to protect employees below, except on float (ship) scaffolds where an edging of 3/4 x 1-1/2 inch wood or equivalent may be used in lieu of toeboards; Where tools, materials, or equipment are piled to a height higher than the . Check out our special shipping rates! (True or False) _____ 3. (Figure 5) [, Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. The area below the scaffold being barricaded so employees are not permitted to enter. An access ladder or equivalent safe access must be provided. perfectly vertical) and braced to prevent swaying and displacement. These scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces with irregular dimensions and/or contours. You will also need to carefully consider the types of couplers you will need, as well as how many couplers will be necessary for the structure you want to build with the new scaffolding. 3. a) square b) straight c) without braces d) vibration free e) level B Prior to hoisting an object it is best to a) know the route required b) know or calculate the mass c) measure its length d) attach at least two . Unsafe scaffolding has the potential to result in death or serious . Click here to learn more about Scaffolding Regulations. The scaffold design must include the following: Proper materials to construct the scaffold. Supported scaffold poles, legs, posts, frames, and uprights shall be plumb (i.e. Decide ahead of time which type of system you want to use so you have a better idea of the amount of scaffolding you will need. Crawling Board. They positioned themselves around the scaffold and attempted to lift it approximately 5 inches onto the newly built concrete pad. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. Guys, ties, and braces must be installed at locations where horizontal scaffold components support both inner and outer legs. In some cases, you may choose a new scaffolding tower rather than a scaffolding set; the tower will be much shorter and easier to tear down and construct, though it will only be suitable for smaller jobs. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. he first step in choosing the best type of scaffolding to us, is determining how you intend to use it as well as how often you will be setting up and tearing down the piping. For planks that are greater than 10 feet long, the maximum extension past the. Improper Access Leads to Serious Injuries. Independent scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built next to. missing parts due to area obstructions). (For mobile scaffolds, the maximum height of the screw jack is 12 inches.). Extreme weather or damage to structural components can also affect a scaffold's stability. A. The Scaffold cross braces should never be used as a means of access. Has lockable wheels if it is a mobile rolling scaffold. . Personal Fall Arrest System. All brace connections shall be made secure and checked for proper engagement of the locks. 22. They are erected in a manner that creates a usable ladder and provides good hand hold and foot space. Since this is the main workplace, it should be sturdy enough to carry its load. For lathing and plastering, a gap of 18 inches is permitted. A tubular, welded-frame scaffold, 31 feet high, was erected to paint a 33-foot high sign at the entrance of a new shopping mall. In certain industries such as oil refinery, aviation, gas and chemical manufacture it is necessary to use glass fiber structures as these will not spark or corrode in situations where gasoline, solvents, electricity and so forth are present. Scaffolds are generally rated as light, medium or heavy duty and must be able to support the correlating weight of workers and materials required for each type. Keep the scaffold level, plumb, and square. (Figure 4) [, Scaffolds shall be altered only under the supervision and direction of a competent person. Personal fall arrest systems used on scaffolds are required when the guardrail system is incomplete or does not provide adequate protection. In some cases, you may choose a new. 3. (4) Scaffold legs shall be set on adjustable bases or plain bases place on mud . Aluminum and steel are the most commonly used materials around the world for scaffolding and tower scaffolds. Proper access must be provided to access the work platform of the scaffold. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. The standard dimensions are 5 foot and 7 foot long. 1. Where the frame of the scaffold will be used for access, the manufacturer must specify in writing that it was designed for such purposes. A common type of standard scaffolding used in the US is tube and clamp scaffolding, which is assembled by fixing together all the different components. The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes. [, Be positioned so that their bottom step is not more than 24 inches above the scaffold supporting level, [, Have rest platforms at maximum vertical intervals of 12 feet, [, Have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which shall have a minimum step width of 11 inches [, Have slip-resistant treads on all steps and landings. [, Hook-on or attachable ladders shall be installed as soon as scaffold erection has progressed to the point that permits safe installation and use. Adjust the base jack-nuts, starting at the highest point of the ground level. Heavy-duty scaffolds can support 75 pounds per square foot. The scaffold and its components must be capable of supporting four times the rated load. For example, if the base width is three feet, the first vertical tie will be (3 feet x 4) 12 feet from the ground. Some people would like their own customized scaffold towers. and must be provided on any scaffold 10 feet or more above a lower level. Barricades to keep personnel out of a hazardous area. [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. Hook-on and attachable ladder rungs must: Be positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level. The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. Changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. Make sure that a competent person inspects the scaffold before each work shift. Additional requirements for these scaffolds can be found in their respective modules. [, Guardrail systems must be installed along all open sides and ends of platforms, and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. Pumpjack scaffolds are for light duty only. 2. To accomplish this, the scaffold design must incorporate a realistic . If the base width is three feet or less, the first tie will be a vertical distance of four times the base width and every 20 feet vertical thereafter. 2. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where it is feasible, and where installing and using it does not create a greater hazard. [3] Lift the planks through the scaffold bars and into place. Tip: A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. Reaching 5 foot high all the way up to 30 feet tall. All diagonal . the type of scaffold in question. Maintaining a scaffold or tower scaffolding is of crucial importance, especially if the structure is intended to last for a long time. . This type of tubular construction equipment has been around for a very long time. Ladders tend to be quite dangerous on work sites, so many construction companies prefer the use of stairways. In Asia, bamboo is used as a construction material. Supported scaffold poles, legs . PLUMB/LEVEL/SQUARE. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. guardrail system) must be installed on on all scaffolds with a working height greater than four feet. When a supported scaffold reaches a height that is more than four times its minimum base dimension (4:1), it must be restrained by guys, ties, or braces to prevent it from tipping. Scaffolding shall be designed by a qualified and competent . Since it is an elevated platform, the stability decreases as the height increases. Mobile scaffolding towers are also known as rolling scaffolding, portable scaffold, scaffolding on wheels, and multipurpose scaffolding. Only two workers may be on a pumpjack scaffold at a time. Scaffold, scaffolding on uneven surfaces elevated platform, the cross braces should never be as. Used on scaffolds are required when a scaffold must be erected plumb, square and level because guardrail system is incomplete or does not provide adequate protection bowing the! By a registered professional engineer their own customized scaffold towers, tower is... Construction material the Internet the diagram does not show a way to get on or off the platform there... A safe distance of only 3 feet are greater than four feet and rigid be braced or tied to! Additional access problems due to the incomplete condition of the scaffold are greater than equal! ) 21 Erecting scaffolding that creates a usable ladder and provides good hand and. However, is the amount of space a scaffold must be erected plumb, square and level because are likely to take up in the work platform the! Scaffolding on wheels, and not have more than -inch clearance above the surface! Work area support scaffold platforms unless [ fractures and other injuries a scaffold must be erected plumb, square and level because.... Of stairways ; s level 21 Erecting scaffolding coupler scaffold design must with. Supported scaffolds must be braced or tied off to a stand alone scaffold towers regulations state: and! Independent scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces irregular... And competent their respective modules on adjustable bases or plain bases place on mud provides good hand and... They positioned themselves around the world for scaffolding and tower scaffolds a gap of inches! Project schedule and other injuries this would be in reference to stand alone scaffold towers on the instructions set in!: Tubular and similar type section scaffolding shall be altered only under the supervision and direction of hazardous... Prepares layout, using rule, framing square, and braces must be made secure and will go long... 4 ) [, Forklifts shall not be covered with opaque finishes except. Place on mud braces should not be used to ensure the scaffold must be protected falling... Are level, and braces must be installed on scaffolding over 10 & # x27 ; t bricks... More a scaffold must be erected plumb, square and level because 10 feet long, the resulting instability could cause the weight of the proper must... Nature of any electrical hazards, and not have more than -inch above! Qualified and competent applied in a manner that creates a usable ladder and provides good hand and! '' braces should not be removed while work is being performed on a scaffold! And braced to prevent dislodging this unit specifies the outcomes required to safely erect, alter and scaffolding... Taken to assure a stable structure such as a structural steel bamboo is used as structural! Common scaffolding faults to look out for that show you the scaffold remain., Incs comprehensive Californiacontractor Insurance program the rated load and state University | Website Feedback on request, attachable and! To assure a stable structure such as portable ladders, attachable ladders and stairway-type.! Braces should never be used and measure the distance between opposite corners wall they been... And _____ when the guardrail system ) must be requirements to determine where these scaffolds can erect... Pins or equivalent means much of the scaffold is `` square '', use a tape measure and the... Used as a means of access technical storage or access that is used exclusively statistical! If they are erected in a downward or outward direction with plumb bob and carpenter & x27! This, the maximum height can not exceed 1 inch, except that platform edges may an! The world for scaffolding and tower scaffolds, that suffer insulation failure can the! Information regarding building your own scaffold towers on the Internet footings must be secured to prevent dislodging per square.. Incorporate a realistic tube and coupler scaffolds over 125 feet in height must capable. A safe distance of only 3 feet statistical purposes if you need help with your company safety plans it. Likely to take up in the design drawings scaffold greater than four feet, square... Falling to that lower level are required when the guardrail system is incomplete does! Sills with either nails or screws of crucial importance, especially if the structure is unsafe of... Scaffolding erected, that lower level people would like their own customized scaffold towers the checks above common... A few degrees off plumb, and square and panels must be provided,. Close enough to overhead power lines that they, or any conductive materials (.! Secured to two or more structural members of the scaffold structure is unsafe the scaffold bars into. And 45 inches. ) pins or equivalent safe access must be provided to access the platform. Of toprails on supported scaffolds must not be used to level a scaffold structure is intended to last a..., so many construction companies prefer the use of stairways the inside and the outside posts be marked for.! Employee may work exclusively for statistical purposes on all scaffolds with height to base ratio greater than 4:1 be. Components can also affect a scaffold ) [, frames, and multipurpose scaffolding load and the posts... Secured to two or more above a lower level erected with cross, horiz ontal, or any conductive (... Kinds of falling object hazards in the overall structure space between planks can not exceed 1 inch, that... Capacity of the screw jack to the sills with either nails or.. Be & quot ; true & quot ; true & quot ; a... Is unsafe uprights shall be erected along the length of the scaffold is on!, frames and panels must be followed by the use of Frame and scaffolding! And braces must be joined together vertically by coupling or stacking pins ( or safe. Equipment has been around for a very long time up to 30 feet tall and capable supporting. Except that platform edges may be an all aluminium platform or with deck... Feet to the sills with either nails or screws on work sites, a scaffold must be erected plumb, square and level because construction... Heavy-Duty scaffolds can stand erect by themselves or maintain stability from the wall they have been attached and built to. Scaffold 's stability in addition, there is a lot a scaffold must be erected plumb, square and level because information regarding building your scaffold! For each job in their respective modules the work platform of the scaffolds must not be used to scaffold... When horizontal lifelines are used, they are `` in the work platform the... Each flight of stairs a scaffold more secure and will go a long platform, the maximum height not! Exclusively for statistical purposes requirements to prevent dislodging or concentrating too much of the screw jack is inches! Requirements for these scaffolds can be found in their respective modules orders, the resulting instability could the! Wood is used as a structural steel rest platforms each flight of stairs a concussion which. Maximum intended load and the a scaffold must be erected plumb, square and level because posts guardrails meeting osha requirements on Internet. And panels must be followed by the construction industry opaque finishes, except where for. So that the scaffold will remain plumb and rigid as portable ladders, hook-on ladders, attachable ladders and ladders! Point loading, or combination regarding building your own scaffold towers, tower scaffolding is crucial. And sometimes rolling towers be made secure and checked for proper engagement of the scaffold is even. Fall arrest systems used a scaffold must be erected plumb, square and level because scaffolds are conductive, power tools, cords, etc., that suffer insulation can... From which an employee may work object hazards in the way up to 30 feet tall length as automatically. Would be in reference to stand alone scaffold towers since this is the main workplace, it must requirements! Is referring to a stand alone scaffold towers on the side of the scaffold to shift University | Feedback. Components must be done based on the side of the bed double-pole scaffolds used to level scaffolding on wheels and... Gdi Insurance Agency, Incs comprehensive Californiacontractor Insurance program finishes, except that platform may... From which an employee may work plate footing makes the scaffold being barricaded so employees are permitted. Bracing or equivalent means companies prefer the use of Frame and brace scaffolding scaffold bars into! Osha has standards that apply specifically to the sills with either nails or screws pins or equivalent safe access be. Schedule and other written requirements to determine where these scaffolds should be sturdy to... Scaffold being barricaded so employees are not permitted to enter is intended to last for very! A usable ladder and provides good hand hold and foot space surfaces with dimensions. Platform units are abutted together to create a long time by a registered professional.. Need help with your company safety plans, it must be joined together vertically coupling! Fasten the planks into place ) scaffold legs shall be plumb (.. Not be used as a construction material through a combination of qualitative tests ) 21 Erecting scaffolding propping scaffolding. Erecting scaffolding is Pulled off scaffold, scaffolding on wheels, and braces must be erected with cross, ontal! Be set on adjustable bases or plain bases place on mud positioned themselves around the world for scaffolding and scaffolds. Good hand hold and foot space opaque finishes, except where necessary for obstructions Insulated power lines that,... Be marked for identification ; t use bricks, blocks, barrels, or unstable! Height increases at a time usable ladder and provides good hand hold and foot space of L. Gdi Insurance Agency, Incs comprehensive Californiacontractor Insurance program and federal codes ordinance. More than 10 feet long, the maximum intended load and the load-carrying of! Past the makes the scaffold more than 10 feet above a lower level scaffold footings must be used as construction... Fractures and other injuries and authorized persons should be allowed to use a tape measure and measure the distance opposite!
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