1910.26 – Portable Metal Ladders

• (a) Requirements

(1) General

(iii) Rung spacing: 12” centers

(2) Straight/extension ladders

(i) Minimum width between side rails: 12”

(ii) Length single/individual ladders: not >30’

_Two section ladders: not >48’L

_Over two section ladders: not>60’L

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