Inclination and supportġ3.5 When in use, a portable single or extension ladder must Inspectionġ3.4Ě portable ladder must be inspected before use, and a ladder with a loose, broken or missing rung, a split side rail, or other hazardous defect must be removed from service. Protective coatingsġ3.3Ě protective coating applied to a wooden ladder, other than a small amount for identification purposes, must be transparent to allow any defects to be discovered by inspection. (ii) graded to National Lumber Grades Authority Standard Grading Rules for Canadian Lumber, or other grading rules acceptable to the board. (i) from lumber graded Number 2 or better and species to be limited to Douglas fir-larch, hemlock-fir, spruce-pine-fir, or coast Sitka spruce, and (h) ladder components made from timber materials must be (g) a double cleat ladder must have 3 rails evenly spaced, and be 107 m to 127 cm (42 in to 50 in) wide, and have continuous cleats which extend the full width of the ladder (f) the spaces on the side rails between the cleats must be filled with close fitting and well secured filler pieces that are the same thickness as the cleats (ii) nailed directly onto the smaller surfaces of the side rails, using three 57 mm (2 1/4 in) wire nails on each end of the 89 mm (4 in) cleats, and two similar nails on each end of the 64 mm (3 in) cleats (c) the distance between the inner faces of the side rails must not be less than 38 cm (15 in) nor more than 50 cm (20 in) Ħ4 mm (1 in x 3 in nominal) for ladder lengths up to 5 m (16 ft), andĨ9 mm (1 in x 4 in nominal) for ladder lengths from 5 m to 7.3 m (16 ft to 24 ft) (b) side rails must not be notched, dapped, tapered or spliced X 4 in nominal) for lengths up to 5 m (16 ft), andġ40 mm (2 in x 6 in nominal) for lengths from 5 m to 7.3 m (16 ft to 24 ft) Job built laddersġ3.2Ě portable wooden ladder made at the job site must meet the following minimum requirements: (2)Ě manufactured portable ladder must be marked for grade and use, and must be used in accordance with the manufacturer's instructions. (d) other standard acceptable to the board. (c) ANSI Standard A14.2-1990, Safety Requirements for Portable Metal Ladders, or (b) ANSI Standard A14.1-1990, Safety Requirements for Portable Wood Ladders, (a) CSA Standard CAN3-Z11-M81, Portable Ladders, Window Cleaning and Similar Building Maintenanceġ3.1 (1)Ğxcept as otherwise permitted by this Part, portable ladder design, construction and use must meet the requirements of Work Platforms Supported by a Crane or Hoist Part 13 - Ladders, Scaffolds and Temporary Work Platformsįree Standing Tower and Rolling Scaffolds Workers Compensation Act OCCUPATIONAL HEALTH AND SAFETY REGULATION For the most current information, click here. This archived regulation consolidation is current to Augand includes changes enacted and in force by that date.
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