Scaffolding

Source excerpt

## OCCUPATIONAL HEALTH AND SAFETY, 2020 - (b) is at least 1 metre wide in the case of a heavy-duty scaffold; and - (c) is level or, if used as a ramp, has a slope at an angle not steeper than 5 horizontal to 1 vertical. - (4) A single manufactured extending painter's plank, or a plank that is 51 x 305 millimetre, number 1 structural grade spruce lumber or material of equivalent or greater strength, may be used in a ladderjack scaffold. 31 Dec 2020 c S-15.1 Reg 10 s12-7. ## Wooden scaffolds 12-8 (1) An employer or contractor shall ensure that the dimensions of members of a light-duty wooden scaffold that is less than 6 metres in height are not less than the dimensions specified in Table 12 of the Appendix. - (2) An employer or contractor shall ensure that a wooden scaffold is constructed of unpainted number 1 structural grade spruce lumber or material of equivalent or greater strength. 31 Dec 2020 c S-15.1 Reg 10 s12-8. ## Metal scaffolds 12-9 (1) If a metal scaffold is used, an employer or contractor shall ensure that the metal scaffold is: - (a) erected, used, maintained and dismantled in accordance with the manufacturer's or professional engineer's specifications and recommendations; and - (b) inspected, by a competent person, before use and daily when in use for any damage, deterioration or weakening of the scaffold or the scaffold's components. - (2) If a metal scaffold or a component of a metal scaffold is damaged, deteriorated or weakened so that the strength or stability of the scaffold is affected, an employer or contractor shall ensure that the scaffold is not used until the scaffold or component is repaired or replaced by a competent person in accordance with the manufacturer's or a professional engineer's specifications and recommendations. - (3) If a metal scaffold is a tube and clamp scaffold, an employer or contractor shall ensure that: - (a) joints in adjacent uprights are staggered and do not occur in the same tier; - (b) joints in u…

Source excerpt

- (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 …

Source excerpt

## 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 …

Source excerpt

325 (3) An employer must ensure that a scaffold used to carry the equivalent of an evenly distributed load of more than 367 kilograms per square metre is - (a) designed and certified by a professional engineer, and - (b) constructed, maintained and used in accordance with the certified specifications. - 325 (4) Subsection (3) applies to a type of scaffold that is not otherwise specifically referred to in this Code. 325 (5) An employer must ensure that all workers on a scaffold are informed of the maximum load that the scaffold is permitted to carry. ## Tagging requirements 326 (1) An employer must ensure that a scaffold is colour coded using tags at each point of entry indicating its status and condition as follows: - (a) a green tag with 'Safe for Use', or similar wording, to indicate it is safe for use; - (b) a yellow tag with 'Caution: Potential or Unusual Hazard', or similar wording, to indicate the presence of a potential or unusual hazard; - (c) a red tag with 'Unsafe for Use', or similar wording, to indicate it is not safe to use. 326 (2) An employer must ensure that a bracket scaffold, double-pole scaffold, needle-beam scaffold, outrigger scaffold, single-pole scaffold, suspended scaffold or swingstage scaffold erected but not immediately put into service, or not used for more than 21 consecutive calendar days, has a red tag at each point of entry until it is inspected and tagged by a competent worker for use. - 326 (3) An employer must ensure that a bracket scaffold, double-pole scaffold, needle-beam scaffold, outrigger scaffold, single-pole scaffold, suspended scaffold or swingstage scaffold is inspected and tagged by a competent worker before it is used for the first time and at intervals of not more than 21 calendar days while workers work from the scaffold or materials are stored on it. 326 (4) A tag attached to a scaffold under this section expires 21 calendar days after the date of the inspection it records. - 326 (5) A tag required by this s…