Expert: Lori Greene - 6/23/2011

Question
I have noticed that interior door jambs are typically shimmed between the jamb and the frame. Our builder partially framed the basement, but didn't take into account that we were planning on using dricore subflooring (almost 1 inch in height). does the top of the jamb need to be shimmed or can it be mounted flush against the top of the door frame? We live in Alberta, Canada and I don't know what Alberta's building codes are, but I don't imagine they would specify. I'm mostly just wondering about to expansion, etc. Thank you for your help.

Answer
Hi Pete -

This is not something that I would normally get involved with - my expertise is in commercial doors and hardware, but I wouldn't think that this would be a code requirement.  It sounds like more of a recommended construction practice.  I don't think you have a problem code-wise.