Prehung Doors

Old 01-30-05, 07:00 PM
Visiting Guest
Posts: n/a
Prehung Doors

I'm installing some in my basement. I roughed
the opening according to specs on the doors,
but there's still at least an inch on each side
when I insert the door into the opening.

What's the best way to install these? Any
step by step instructions?
Old 01-31-05, 05:30 AM
pgtek's Avatar
Join Date: Oct 2004
Location: north Carolina
Posts: 1,348
Received 1 Upvote on 1 Post
Old 01-31-05, 10:04 AM
Visiting Guest
Posts: n/a
Originally Posted by pgtek
thanks, but doesn't explain why my spaces are so large
and what do about them.
Old 01-31-05, 11:02 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,410
Received 1,744 Upvotes on 1,568 Posts
as a rule of thumb, rough openings only need to be 1" bigger than the door jamb itself. If the door is 33 1/2 x 81, the rough opening should be 34 1/2 x 82. If your rough openings are as big as you say, I would add 1/2" plywood to each side to reduce the gap down to 1/2". Keep the door centered in the opening when you shim it, and you shouldn't have any trouble getting the casing to cover.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: