Guess whether this deck needs an engineer, then try other sizes and heights
Show a hint
A deck over 55 square metres (592 square feet) that needs a permit, with no stamped foundation.
Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.
The rule this lesson teaches
Edmonton wants a stamped foundation above 1.8 m (5 ft 10 13/16 in), or over 55 square metres (592 square feet) on a deck that needs a permit, and the whole deck stamped above 3.6 m (11 ft 9 11/16 in) or under a heavy load.