Odd size exterior door options / ideas

Old 07-28-20, 01:02 PM
scoob8000's Avatar
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Odd size exterior door options / ideas

I'm looking to replace our basement door. It's a old wood door that's seen better days. (cracks, gaps, etc).

But it seems to be a slightly odd size, or home-made even.
It's set in a cement block wall. The "frame" appears to be 2x8 on the sides and top.

If I gut the "frame" to the block and to the ceiling header I'm at a 35"x81.5" rough opening. If I find a prehung to fit inside the old "frame" I'm at 31.5" x 75.75".

The framing is in pretty decent shape, and my gut says to just get a 30x78 prehung and slap it in the old frame. But nobody has that size locally.

Any other thoughts / ideas? I'm starting to think this isn't going to be a DIY job for me.
Old 07-29-20, 05:09 AM
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Just did a similar thing at my son's home. Replaced window with door. The rough opening gave us less than a quarter inch slop. This was on an upper floor, so we weren't too concerned about ground contact and moisture problems. But we had to shoe horn that frame in.
If you can find a wooden door that will allow to cut down to the height go for it. You're going to spend near about $250 to $300 for a prehung. Go to a lumber mill or possibly an Amish mill and get a quote for a custom size door. I'm betting it will be about the same.

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