The Ontario Building Code | Signs
3.16.1.4. Signs
(1) A permanent sign shall be posted in a conspicuous location to indicate the maximum permissible design loads for each shelf and rack storage system.
(2) Permanent signs shall be posted in conspicuous locations with,
(a) the words NO SMOKING in black lettering not less than 50 mm high with a stroke not less than 12 mm on a yellow background, or
(b) a non-smoking symbol having a size not less than 150 mm by 150 mm.
In Plain Language
A permanent sign showing maximum permissible design loads must be posted conspicuously on each shelf and rack storage system, along with no-smoking signage where required.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.