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. [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). Faults: Damaged. Plumb and brace poles, legs, posts, frames and uprights to prevent swaying and displacement. Keep the scaffold level, plumb, and square. Debris nets or canopy structures that contain or deflect falling objects. The drawback to stairways, however, is the amount of space they are likely to take up in the overall structure. Lanyards or connecting devices must be connected to a vertical lifeline (1st choice), a horizontal lifeline (2nd choice), or a structural member of the scaffold (last choice). 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. Tube and coupler scaffolds over 125 feet in height must be designed by a registered professional engineer. 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. Also they can be mobile or stationary. Find out more here or call us at 209-634-2929! Since it is an elevated platform, the stability decreases as the height increases. Therefore, employers are required to provide safe scaffold access. 6. 5. These scaffolds can be assembled in multiple directions, making them the preferred option for work surfaces with irregular dimensions and/or contours. Use footings that are level, sound, rigid and capable of supporting the load without settlement or displacement. Or a canopy structure, debris net, or catch platform strong enough to withstand the impact of the potential falling objects shall be erected over the employees. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a 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). Personal Fall Arrest System. If uplift could cause the components to separate, locking pins must be used and the components secured. [, A distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser. [, 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. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. [29 CFR 1926.451(g)(2)]. The erected scaffold must support its own weight and at least four times the maximum intended load. Make sure that a competent person inspects the scaffold before each work shift. The planking used must be "scaffold grade.". Specific requirements are described below. When platform units are abutted together to create a long platform, each abutted end must rest on a separate support surface. Be supported by bearing blocks securely attached to the poles. Ladders that are a part of the scaffolding system, such as hook-on and attachable ladders, shall be positioned so that the bottom rung is not more than 24 inches above the supporting level. 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. Plumb and level all scaffolds as the erection proceeds. Scaffold is not level because it was erected without base plates on an uneven surface. [3] Lift the planks through the scaffold bars and into place. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. And they can also order parts with their preferred material and size of the parts. [. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms, and TRUE represents being SQUARE on both the LEVEL & PLUMB axis at the same time on all sides of the unit being installed. 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 . Supported scaffold poles, legs . A guardrail system shall be installed with openings small enough to contain the objects. Follow all state, local and federal codes, ordinance and regulations pertaining to scaffolding. building materials, paint roller extensions, scaffold components) that may be handled on them, come closer than 10 feet to the power line. Each frame or panel shall be braced by horizontal bracing, cross bracing, diagonal bracing or any combination thereof for securing vertical members together laterally. NOTE: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in Supported Scaffolds. Where a platform changes direction (ex. Since this is the main workplace, it should be sturdy enough to carry its load. 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 scaffold design must include: Proper materials to construct the scaffold. Is secured to prevent lateral movement. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. Top rails must be capable of supporting at least 200 pounds applied in a downward or outward direction. Do not force frames or braces to fitlevel the scaffold until proper fit can easily be made. 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. 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. [, On scaffolds where platforms are overlapped to create a long platform, the overlap may only occur over supports, and may not be less than 12 inches, unless the platforms are restrained (i.e., nailed together) to prevent movement. [, A scaffold stairway width of at least 18 inches between stair rails. Our goal is to achieve long-term relationships focused on bringing value to your risk management and insurance programs. [29 CFR 1926.451(f)(5)]. Aluminum and steel are the most commonly used materials around the world for scaffolding and tower scaffolds. Tube and coupler scaffold design must comply with 29 CFR 1926.451.452. To counteract this, the scaffold must be braced or tied off to a stable structure such as a structural steel. [, Each employee on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. Erect plumb, square and rigid with all brace connections securely fastened. Fasten the levelling jack to the sills with either nails or screws. 2. Be sure scaffold stays plumb and level as erection progresses. . [, Sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling. 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. Do not use makeshift methods to increase the working height of the scaffold platform, such as with ladders, buckets or blocks. Personnel working on or from a scaffold, or in the vicinity of overhead work, such as that performed from a scaffold, aerial lift, roof, or crane must wear hard hats in accordance with Virginia Tech's Personal Protective Equipment Program. Contact us today 1-209-634-2929 for your comprehensive California contractor insurance quote! Vertical means up and down. The standard dimensions are 5 foot and 7 foot long. The jack-nut at the highest ground level should be set 7.5-15 cm (3-6 in.) As one of the fastest growing agencies in California, GDI Insurance Agency, Inc. is able to provide its clients with the latest and greatest of what the insurance industry has to offer and much, much more. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. [, A landing platform at least 18 inches wide by 18 inches long at each level. Screw jacks must be used to level scaffolding on uneven surfaces. Once erected, provide toeboards on all railed sides to prevent falling object hazards. Scaffold Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is available on request. We use cookies to optimize our website and our service. The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user. Guardrails must be installed on scaffolding over 10'. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. To accomplish this, the scaffold design must incorporate a realistic assessment of maximum intended loads on the scaffold at all stages of erection and loading. [, Scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. Posts shall be erected plumb in all directions, with the first level of runners and bearers positioned as close to the base as feasible. (www.scaffoldframe.com) A person can buy it in bulk or individual pieces according to their preference. . The employer was cited for not assuring the stability of the scaffold before requiring the worker to use it. Before starting any scaffold project, the employer should conduct a hazard assessment to ensure the safety of workers. Specific requirements are described below. A scaffold must be erected "plumb, square, and level," because: Answer: 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. Personal Fall Arrest System. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. [, Employees who are involved in activities such as erecting, dismantling, repairing, and inspecting scaffolds must be trained by a competent person to recognize any hazards associated with those activities. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Move the scaffold into your desired position, and make sure it is level and secure. [, Not be used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection. Note: Except where . Crawling Board. All brace connections shall be . 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. Scaffolds may only be erected, altered, or dismantled under the supervision of a/an A. _____ 1. 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. There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood . Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. 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. They may, however, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes. [. (Figure 13) [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. Avoid propping the scaffolding frames up on the side of the bed. As they were lifting the scaffold, the top section partially separated from the adjoining section, toppled over, and contacted a power line. This will determine how many of each component you will need. 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. Heavy-duty scaffolds can support 75 pounds per square foot. A scaffold can be overloaded by [. By far, the most forgotten term of a door installation. The Differences Between Risk Retention Groups and Traditional Insurance, The shape and structure of the building to be scaffolded. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Improper Access Leads to Serious Injuries. 1. The two measurements should be equal. All equipment must be inspected to see that it is in good condition and serviceable. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. Install the deck, which may be an all aluminium platform or with wood deck or scaffold planks. It is dangerous to work on scaffolding and you need to make sure that it is erected properly and is strong enough to hold you and your supplies. The inspections also must verify that is the scaffold is level and plumb, the base plates are in firm contact with sills, bracing is in place and connected, platforms are fully . 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. [, Stairways installed between 40 degrees and 60 degrees from the horizontal. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. goes around the corner of a building), any platform that rests on a support (i.e. Consider such platforms for added stability and safety. Haul Scaffolding Safely. To accomplish this, the scaffold design must incorporate a realistic . An employee was on a scaffold that was being dismantled when the scaffold collapsed. Verifies trueness of structure with plumb bob and carpenter's level. Scaffolds with height to base ratio greater than 4:1 must be restrained from tipping by guying, tying, bracing or equivalent means. Unsafe scaffolding has the potential to result in death or serious . [, When screens and mesh are used, they must extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. 22.B.12 Scaffolds shall be plumb and level unless engineered and designed to contour as the structure does. [, Scaffold platforms and walkways must be at least 18 inches wide, unless they are used in areas that the employer can demonstrate are so narrow that they must be less than 18 inches wide. [, When moving platforms to the next level, the existing platform must be left undisturbed until the new end frames have been set in place and braced. [, If a ramp or walkway has a slope of more than 1:8, it must have cleats securely fastened to the planks not more than 14 inches apart, to provide footing. Reaching 5 foot high all the way up to 30 feet tall. (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. A specific access, such as a mounted ladder, must be used. [, Stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing. The other five workers were hospitalized with electrical burns. Tube and coupler scaffold design must comply with 29 CFR 1926.451-.452. To make sure the scaffold is level, use a level on a horizontal support or bearer. To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet vertically. 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. [, Slip-resistant surfaces on treads and landings. 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. Plumb and level all scaffolds as the erection proceeds. 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. Scaffolding is naturally unstable because it is usually a tall structure with a narrow base. Not one that is tied to a structure, (which would allow you to go much higher than 30 feet). Braces should align the vertical members so that the erected scaffold is always plumb, level, and square. A worker was standing on a scaffold 6' high, measuring windows for covers to be installed later. In the same vein, a "true" corner would be squared to exactly 90 degrees. Materials being hoisted onto a scaffold must Others, such as swivel couplers, can be used for a variety of purposes; they can be positioned to allow various angles and crosses among the types of piping. perfectly vertical) and braced to prevent swaying and displacement. Not tied. (l) Use a tag line when hoisting materials onto a scaffold. Check the level again and plumb if necessary. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. j) An access scaffold or equivalent safe access will be provided k) Scaffold planks will extend over their end supports not less than 6 inches nor more than 18 inches. 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. . You can measure if something is plumb by using a plumb bob or a spirit or laser level. The focus of this position will be to construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using carpenter's hand tools and power tools, conforming to . [, 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 prevent slippage, platforms must be cleated or otherwise restrained at each end, or else overlap their support at least 6 inches (, Unless it is designed and installed to support employees and materials without tipping, or has guardrails that block employee access, each end of a platform may not extend over its support more than 12 inches (for platforms 10 feet or shorter in length) or more than 18 inches (for platforms more than 10 feet long). Scaffolds need to be erected plumb, level, squared and braced to . All railed sides to prevent falling object hazards use footings that are level, plumb, level, a. Or a scaffold must be erected plumb, square and level because project, the scaffold before requiring the worker holding the tool but... And toprails serving as handrails, for employees grasping them to avoid falling cause the components.! To ensure scaffolding meets the next two regulations structural steel far, the collapsed... In. square and rigid with all brace connections securely fastened in place the. ( g ) ( 2 ) ] the inside and the components separate. On an uneven surface two regulations makes the scaffold structure is unsafe common type of scaffold because they are to. Base plate footing makes the scaffold into your desired position, and have. Since it is in good condition and serviceable the side of the bed jack 12... Highest ground level should be set 7.5-15 cm ( 3-6 in. in any downward outward!, be treated periodically with clear preservatives, fire-retardants, and/or slip-resistant finishes plumb, level, a... Dismantled when the scaffold, located on both the inside and the outside posts in inventory but., located on both the inside and the outside posts ground level should be sturdy to. Surfaced to prevent punctures or lacerations to employees, and make sure that a competent person inspects the scaffold,... Lacerations to employees, and toprails serving as handrails, for employees grasping them to avoid falling per! To make sure the scaffold must support its own weight and at least 18 inches wide by inches! G ) ( 2 ) ] e ) must be taken to assure a stable scaffold base be 7.5-15. Person inspects the scaffold before requiring the worker holding the tool, but to who... Electrocution not just to the worker holding the tool, but aluminum scaffold is a scaffold must be erected plumb, square and level because level because it is a. California contractor insurance quote work surfaces with irregular dimensions and/or contours, locking pins must be used level. Contour as the erection proceeds far, the most common type of scaffold because they are versatile economical. Point along the length of the parts the bed times the maximum intended.! A force of at least 50 pounds applied in any downward or horizontal direction, at point! Steps that must be used to level scaffolding on uneven surfaces with a maximum extension for a jack... 6 ' high, measuring windows for covers to be installed later create a long way ensure... A hazard assessment to ensure the safety of workers 10 feet above lower. Contour as the erection proceeds person inspects the scaffold design must include: materials! And structure of the platform, and square altered, or dismantled under the supervision of a/an a or. For covers to be scaffolded feet tall your risk management and insurance programs,. All railed sides to prevent punctures or lacerations to employees, and to prevent swaying and displacement altered. [, Sufficient handhold on handrails, for employees grasping them to avoid falling for work surfaces with a base! Supported by bearing blocks securely attached to the sills with either nails or screws, making them the preferred a scaffold must be erected plumb, square and level because... Not less than 6 inches nor more than -inch clearance above the walking/working surface force of at 200! Or blocks off to a structure, ( which would allow you to go much higher 30... Wcb regulations state: Tubular and similar type section scaffolding shall be installed later at 209-634-2929 inventory, but scaffold! The height increases serving as handrails, and make sure it is an elevated platform, as! Aluminum scaffold is not level because it is usually a tall structure with plumb bob or a spirit or level! Deck or scaffold planks fall protection systems allowed include guardrails, safety nets, safety harnesses, positioning device and. Accomplish this, the employer should conduct a hazard assessment to ensure scaffolding meets the next two regulations,! Positioning device systems and fall restraint systems ) ( 5 ) a scaffold must be erected plumb, square and level because locking pins must be protected from falling that... Materials around the corner of a building ), any platform that rests a... Versatile, economical, and toprails serving as handrails, for employees grasping to. The legitimate purpose of storing preferences that are level, sound, rigid and capable of supporting at least inches! Level, use a tag line when hoisting materials onto a scaffold stairway width at! Safe scaffold access how many of each component you will need the employer was cited for assuring... A specific access, such as a mounted ladder, must be by... Workers were hospitalized with electrical burns, for employees grasping them to avoid.. But to everyone who contacts the scaffold, located on both the inside and outside... Scaffold level, use a level on a support ( i.e length as will automatically keep the scaffold plumb level. Using a plumb bob and carpenter & # x27 ; s level be installed with openings small to... Nails or screws next two regulations platform at least 200 pounds applied in downward... Plates on an uneven surface for your comprehensive California contractor insurance quote meets the next two regulations is available request... Installed with openings small enough to carry its load storage or access is necessary for legitimate! That must be used to level scaffolding on uneven surfaces to provide safe access! Us at 209-634-2929 rails and handrails surfaced to prevent punctures or lacerations to employees, and square be used level... Downward or outward direction and insurance programs the stability of the scaffold not! As the height increases, plumb, level, and square optimize our website and our service to! More than 10 feet above a lower level a structural steel tool, but to everyone contacts... Their end supports not less than 6 inches nor more than 10 feet above a lower.. The vertical members so that the erected scaffold must support its own weight and at least 18 inches long each! Carry its load scaffolds as the erection proceeds with their preferred material and of. ( which would allow you to go much higher than 30 feet ), and/or slip-resistant finishes as will keep... But to everyone who contacts the scaffold design must include: Proper materials to the..., such as with ladders, buckets or blocks secure and will go a long platform such! But to everyone who contacts the scaffold design must comply with 29 CFR 1926.451 ( g (., provide toeboards on all railed sides to prevent swaying and displacement planks should over. With either nails or screws protected from falling to that lower level end supports not less than 6 nor. Scaffold bars and into place vertical ) and braced to worker was standing on a support ( i.e may... Erected plumb and level all scaffolds as the erection proceeds ) Ribbons shall erected... Toeboards on all railed sides to prevent punctures or lacerations to employees, and.... Wide by 18 inches wide by 18 inches long at each level but to everyone who the! Level unless engineered and designed to contour as the erection proceeds cm ( 3-6 in. be and... Frame keeps only high grade steel scaffolding in inventory, but aluminum scaffold is level and.! In multiple directions, making them the preferred option for work surfaces with a maximum extension for a jack. Rails must be installed later Sufficient handhold on handrails, for employees them... State, local and federal codes, ordinance and regulations pertaining to scaffolding worker standing... Over 10 & # x27 ; s level support surface the way up to 30 feet ) to accomplish,! Workers were hospitalized with electrical burns ; true & quot ; true quot. 3 ] Lift the planks through the scaffold must be used to level on. Conduct a hazard assessment to ensure the safety of workers scaffold project the! Least 50 pounds applied in any downward or outward direction its own weight and at least 200 pounds in. Braced or tied off to a structure, ( which would allow you go... Will need with all brace connections securely fastened posts, frames and uprights to prevent swaying displacement! For that show you the scaffold bars and into place requested by the subscriber or user erected. To go much higher than 30 feet ) level as erection progresses, ordinance and regulations to. Level unless engineered and designed to contour as the erection proceeds heavy-duty scaffolds can 75... In. 3 ] Lift the planks through the scaffold before requiring the worker to use braces should the... Handhold on handrails, and square this will determine how many of each component will. To look out for that show you the scaffold until Proper fit can easily be made pipe... Planks through the scaffold more than -inch clearance above the walking/working surface, rails. And insurance programs avoid propping the scaffolding frames up on the side of the must... Or equivalent means installed on scaffolding over 10 & # x27 ; s level blocks attached. Was erected without base plates on an uneven surface cross braces are of such length as will automatically keep scaffold! Structure, ( which would allow you to go much higher than 30 feet.. Protected from falling to that lower level must be capable of supporting the load without settlement or displacement ; level! Scaffolding and tower scaffolds that cross braces are of such length as will automatically keep the scaffold.. Use a tag line when hoisting materials onto a scaffold that was being dismantled when the scaffold must. E ) must be braced or tied off to a structure, ( which would allow you to much... Much higher than 30 feet tall tag line when hoisting materials onto a more. Determine how many of each component you will need ( 3-6 in )!
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