Scaffold

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devices for access, provided they are erected in a manner that creates a usable ladder and provides good hand hold and foot space. - (iv) Cross braces on tubular welded frame scaffolds shall not be used as a means of access or egress. - (f) Use. (1) Scaffolds and scaffold components shall not be loaded in excess of their maximum intended loads or rated capacities, whichever is less. - (2) The use of shore or lean-to scaffolds is prohibited. - (3) Scaffolds and scaffold components shall be inspected for visible defects by a competent person before each work shift, and after any occurrence which could affect a scaffold's structural integrity. - (4) Any part of a scaffold damaged or weakened such that its strength is less than that required by paragraph (a) of this section shall be immediately repaired or replaced, braced to meet those provisions, or removed from service until repaired. - (5) Scaffolds shall not be moved horizontally while employees are on them, unless they have been designed by a registered professional engineer specifically for such movement or, for mobile scaffolds, where the provisions of §1926.452(w) are followed. - (6) The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: EXCEPTION TO PARAGRAPH (F)(6): Scaffolds and materials may be closer to power lines than specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. - (7) Scaffolds shall be erected, moved, dismantled, or altered only under the supervision and direction of a com…

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## S-15.1 REG 10 ## OCCUPATIONAL HEALTH AND SAFETY, 2020 - (7) If a scaffold is more than 6 metres high, an employer or contractor shall install a gin wheel and hoist arm or other suitable lifting device to hoist materials from the ground. 31 Dec 2020 c S-15.1 Reg 10 s12-5. ## Ropes in scaffolds - 12-6 (1) An employer or contractor shall ensure that a rope or wire rope that forms an integral part of a scaffold is protected against abrasion or other physical damage. - (2) If damage to a rope that forms an integral part of a scaffold from heat or chemicals is possible, an employer or contractor shall ensure that rope of heat or chemical resistant material is used. 31 Dec 2020 c S-15.1 Reg 10 s12-6. ## Scaffold planks and platforms 12-7 (1) An employer or contractor shall ensure that scaffold planks: - (a) are inspected by a competent worker to ensure that the scaffold planks are free of defects before the planks are incorporated in a scaffold; - (b) subject to subsections (2) and (4), are of 38 x 240 millimetre, number 1 structural grade spruce lumber or material of equivalent or greater strength; - (c) are the same thickness as adjoining planks; - (d) are laid tightly side by side with adjoining planks to cover the full width of the platform; - (e) are secured to prevent accidental or inadvertent movement in any direction; - (f) if wooden, do not span more than 3 metres between vertical supports on a light-duty scaffold or 2.1 metres between vertical supports on a heavy-duty scaffold; - (g) if metal or manufactured laminate, do not have a span between vertical supports greater than the span recommended by the manufacturer; and - (h) do not extend less than 150 millimetres or more than 300 millimetres beyond the bearers. - (2) An employer, contractor or supplier may use a manufactured scaffold plank if the plank is used according to the manufacturer's recommendations and the manufactured scaffold plank is clearly marked with its maximum w…

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- (a) is constructed, installed and used in accordance with the manufacturer's specifications or specifications certified by a professional engineer, - (b) is securely attached to the support wall in a manner that prevents the bracket from dislodging, and - (c) is used only as a light duty scaffold. 332 (2) An employer must ensure that the brackets on a bracket scaffold are spaced at intervals of not more than 3 metres. ## Double-pole scaffolds - 333 (1) An employer must ensure that uprights and ledgers - (a) of light duty double-pole scaffolds are spaced not more than 3 metres apart, and - (b) of heavy duty double-pole scaffolds are spaced not more than 2.3 metres apart. - 333 (2) An employer must ensure that the dimensions of parts of wooden double-pole scaffolds are not less than those specified in Schedule 6, Tables 1, 2, 3 and 4. ## Free-standing or rolling scaffolds - 334 (1) An employer must ensure that - (a) the height of a free-standing or rolling scaffold is not more than 3 times its smallest base dimension, - (b) if outriggers are used to attain the 3 to 1 ratio, the outriggers are firmly attached and ensure the stability of the scaffold, - (c) if a vehicle is used instead of scaffold wheels to form a rolling scaffold, all parts of the scaffold are securely fastened together and the scaffold is securely attached to the vehicle, - (d) if outriggers are required to maintain the stability of a vehicle-mounted scaffold, the outriggers are securely attached to the frame of the vehicle, and - (e) a rolling scaffold is equipped with locking wheels or there are blocks for the wheels. - 334 (2) A worker must not remain on a rolling scaffold while it is being moved unless - (a) the height of its work platform is not more than twice its smallest base dimension, and - (b) the surface over which it travels is firm, level and free of hazards that may cause the scaffold to topple. - 334 (3) A worker using a rolling scaffold must engage the wheel locking devices or …

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## 29 CFR 1926 (OSHA) - (iii) Each hoist shall be covered with insulated protective covers; - (iv) In addition to a work lead attachment required by the welding process, a grounding conductor shall be connected from the scaffold to the structure. The size of this conductor shall be at least the size of the welding process work lead, and this conductor shall not be in series with the welding process or the work piece; - (v) If the scaffold grounding lead is disconnected at any time, the welding machine shall be shut off; and - (vi) An active welding rod or uninsulated welding lead shall not be allowed to contact the scaffold or its suspension system. - (g) Fall protection. (1) Each employee on a scaffold more than 10 feet (3.1 m) above a lower level shall be protected from falling to that lower level. Paragraphs (g)(1) (i) through (vii) of this section establish the types of fall protection to be provided to the employees on each type of scaffold. Paragraph (g)(2) of this section addresses fall protection for scaffold erectors and dismantlers. NOTE TO PARAGRAPH (G)(1): The fall protection requirements for employees installing suspension scaffold support systems on floors, roofs, and other elevated surfaces are set forth in subpart M of this part. - (i) Each employee on a boatswains' chair, catenary scaffold, float scaffold, needle beam scaffold, or ladder jack scaffold shall be protected by a personal fall arrest system; - (ii) Each employee on a single-point or two-point adjustable suspension scaffold shall be protected by both a personal fall arrest system and guardrail system; - (iii) Each employee on a crawling board (chicken ladder) shall be protected by a personal fall arrest system, a guardrail system (with minimum 200 pound toprail capacity), or by a three-fourth inch (1.9 cm) diameter grabline or equivalent handhold securely fastened beside each crawling board; - (iv) Each employee on a self-contained adjustable scaffold shall be protected by a guardrail …

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326 (7) Subsection (6) does not apply to a competent worker who is involved in the erection, inspection or dismantling of a scaffold. 326 (8) Repealed. ## Vertical ladder on scaffold - 327 (1) An employer must ensure that a vertical ladder that gives access to a working level of a scaffold is used by a worker only to move up or down between levels of the scaffold. - 327 (2) Workers moving between levels of a scaffold on a vertical ladder - (a) must not extend a part of their body, other than an arm, beyond the side rails of the ladder, and - (b) must maintain a 3-point stance on the ladder at all times. - 327 (3) The employer must ensure that a ladder attached to a scaffold and providing access to a working level of a scaffold - (a) is securely fastened to the scaffold, - (b) does not lean away from the scaffold, - (c) extends at least 1 metre above the uppermost working level of the scaffold, - (d) has rungs that are uniformly spaced at a centre-to-centre distance of 250 millimetres to 305 millimetres, - (e) has a maximum unbroken length of 9.1 metres measured from the ground or between working levels, and - (f) is equipped with a ladder cage that begins within 2.4 metres of the ground or working level if the ladder is more than 6.1 metres in height. - 327 (4) The employer must ensure that the ladder cage required by subsection (3)(f) is - (a) circular with an inside diameter that measures no more than 760 millimetres, or - (b) square with inside dimensions that measure no more than 760 millimetres by 760 millimetres. 327 (5) Despite subsection (3)(e) and (f), the ladder may have a maximum unbroken length of more than 9.1 metres and does not require a ladder cage if a fall protection system complying with Part 9 is used. ## Working from a ladder 328 (1) An employer must ensure that no worker performs work from a ladder that is used to give access to the working levels of a scaffold. 328 (2) A worker must not perform work from a ladder that is used to give ac…

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## 329 (2) An employer must ensure that a solid sawn lumber scaffold plank is - (a) graded as scaffold grade or better, and - (b) sized 51 millimetres by 254 millimetres. - 329 (3) An employer must ensure that a solid sawn lumber scaffold plank - (a) is used, stored, inspected and maintained according to the manufacturer's specifications, or - (b) if there are no manufacturer's specifications, is made of at least number one grade lumber that is 51 millimetres by 254 millimetres with a wane limited to 20 percent of the width of the wide face of the plank and the warp limited to ensure a flat surface. ## 329 (4) An employer must ensure that a scaffold plank - (a) is visually inspected by a competent worker before it is installed in a scaffold, - (b) is subjected to and passes a load test before it is installed in a scaffold if a visual inspection reveals damage that could affect its strength or function, - (c) extends not less than 150 millimetres and not more than 300 millimetres beyond a ledger, and - (d) is secured to prevent movement in any direction that may create a danger to a worker. - 329 (5) Despite subsection (4)(c), an employer must ensure that an overlapping scaffold plank extends not less than 300 millimetres beyond a ledger. ## Scaffold platform - 330 (1) An employer must ensure that the platform of a scaffold - (a) is a minimum width of 500 millimetres, except that a nominal 300 millimetre wide platform may be used with ladderjacks, pump jacks or similar systems, - (b) does not have an open space between the platform and a structure that is greater than 250 millimetres in width, - (c) if not level, is designed to ensure adequate footing for workers using the platform, and - (d) is continuous around obstructions that would create openings into or through which a worker might step or fall through. - 330 (2) Repealed. ## Metal scaffolding - 331 An employer must ensure that - (a) metal scaffolding is erected, used, inspected, maintained and dismantl…

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## 29 CFR 1926 (OSHA) - (7) On scaffolds where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches (30 cm) unless the platforms are nailed together or otherwise restrained to prevent movement. - (8) At all points of a scaffold where the platform changes direction, such as turning a corner, any platform that rests on a bearer at an angle other than a right angle shall be laid first, and platforms which rest at right angles over the same bearer shall be laid second, on top of the first platform. - (9) Wood platforms shall not be covered with opaque finishes, except that platform edges may be covered or marked for identification. Platforms may be coated periodically with wood preservatives, fireretardant finishes, and slip-resistant finishes; however, the coating may not obscure the top or bottom wood surfaces. - (10) Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffold's structural integrity is maintained by the user. Scaffold components manufactured by different manufacturers shall not be modified in order to intermix them unless a competent person determines the resulting scaffold is structurally sound. - (11) Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component to a level below that required by paragraph (a)(1) of this section. - (c) Criteria for supported scaffolds. (1) Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing, or equivalent means, as follows: - (i) Guys, ties, and braces shall be installed at locations where horizontal members support both inner and outer legs. - (ii) Guys, ties, and braces shall be installed according to…

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## 29 CFR 1926 (OSHA) - (8) Employees shall be prohibited from working on scaffolds covered with snow, ice, or other slippery material except as necessary for removal of such materials. - (9) Where swinging loads are being hoisted onto or near scaffolds such that the loads might contact the scaffold, tag lines or equivalent measures to control the loads shall be used. - (10) Suspension ropes supporting adjustable suspension scaffolds shall be of a diameter large enough to provide sufficient surface area for the functioning of brake and hoist mechanisms. - (11) Suspension ropes shall be shielded from heat-producing processes. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substance being used. - (12) Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected by a personal fall arrest system or wind screens. Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. - (13) Debris shall not be allowed to accumulate on platforms. - (14) Makeshift devices, such as but not limited to boxes and barrels, shall not be used on top of scaffold platforms to increase the working level height of employees. - (15) Ladders shall not be used on scaffolds to increase the working level height of employees, except on large area scaffolds where employers have satisfied the following criteria: - (i) When the ladder is placed against a structure which is not a part of the scaffold, the scaffold shall be secured against the sideways thrust exerted by the ladder; - (ii) The platform units shall be secured to the scaffold to prevent their movement; - (iii) The ladder legs shall be on the same platform or other means shall be provided to stabilize the ladd…

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- (b) designed, constructed and erected to support or resist: - (i) in the case of a wooden scaffold, at least 4 times the load that may be imposed on the scaffold; - (ii) in the case of a metal scaffold, at least 2.2 times the load that may be imposed on the scaffold; - (iii) in the case of any components suspending any part of a scaffold supporting workers, at least 10 times the load that may be imposed on those components; and - (iv) 4 times the maximum load or force to which the scaffold is likely to be subjected without overturning; and - (c) erected, maintained and dismantled by a competent worker. - (3) An employer or contractor shall ensure that a freestanding scaffold is restrained from overturning by guying or other suitable means. - (4) An employer or contractor shall ensure that a scaffold that is built from the ground or other surface: - (a) is supported by a foundation that is of sufficient area, stability and strength to ensure the stability of the scaffold; - (b) is set level on a stable sill that is at least 38 x 240 millimetres and continuous under at least 2 consecutive supports; - (c) has a base plate installed in any upright that could penetrate the sill; - (d) is supported against lateral movement by adequate, secure bracing; - (e) is anchored: - (i) vertically at not less than 4-metre intervals and horizontally at not less than 6-metre intervals; - (ii) if designed by a professional engineer, at intervals recommended by a professional engineer; or - (iii) if commercially manufactured, at intervals recommended by the manufacturer; - (f) is provided with internal stairways or ladders if the scaffold is 9 metres or more in height; and - (g) is checked to ensure that the scaffold is plumb and level after each tier is added. - (5) If a scaffold is partially or fully enclosed, an employer or contractor shall ensure that all scaffold components and tie-ins are adequate to support the added load that may be placed on the scaffold as a …