OHS Code

Published Date: July 01, 2009
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Part 8 Entrances, Walkways, Stairways and Ladders

Section 134 Constructed portable ladder

(1) An employer must ensure that a constructed portable ladder

(a) is constructed of lumber that is free of loose knots or knot holes,

(b) with a length of 5 metres or less has side rails constructed of lumber measuring not less than 38 millimetres by 89 millimetres,

(c) more than 5 metres long has side rails constructed of lumber measuring not less than 38 millimetres by 140 millimetres,

(d) has side rails that are not notched, dapped, tapered or spliced,

(e) has side rails at least 500 millimetres apart at the bottom, and

(f) has rungs that are

(i) constructed of lumber measuring not less than 21 millimetres by 89 millimetres,

(ii) held by filler blocks or secured by a single continuous wire, and

(iii) uniformly spaced at a centre to centre distance of 250 millimetres to 300 millimetres.

(2) An employer must ensure that a 2-way constructed portable ladder that is wide enough to permit traffic in both directions at the same time,

(a) has a centre structural rail along the length of the ladder,

(b) is at least 1 metre wide, and

(c) is constructed of materials that are substantial enough in size to accommodate the maximum intended load.