Originally posted by dave_k
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The link I sent earlier (TACBOC) has a bunch of canned details including a monolithic slab on grade, all to OBC but as I clarified it's not to Ottawa climate.
The reason to hire an engineer is to ensure it'll perform the way he wants. Using a canned detail will give him a safe inhabitable shop but his performance criteria is "i want it to stay in place on expansive clay near a high spring water table" which is what points to "engineer". His current shop was probably done to code, but his site conditions are what made it go haywire.
Luckily for something simple like a slab-on-grade (even with a fancy design) the engineer won't need to inspect/direct construction, the inspector will do that by inspecting after excavation and after the formwork is in, before the pour starts (and again after the pour is done to ensure the concrete cured properly).
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