Rough Openings for Doors


Old 04-07-00, 07:02 PM
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I have ordered some doors for a pole barn. They have been backorder. How do I figure the rough openings for these doors? I have 1-3/0 door, 1-6/0 door, 1-12'x8' Garage door and 1-9'x8' Garage door.

Thanks in advance!
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Old 04-07-00, 08:01 PM
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The garage door rough openings are actually the same as the door size. The door fits inside the wall, not inside the opening. So, 9' and 12' A 10' door is about 10' 2" or so. The height is the same way.

Exterior doors have a thicker casing than do interior doors. I usually add 3 1/2" for ext doors and 2 1/4" for int. Make sure that this width is between the trimmers, not the king studs! I assume that these are both 6'8". 81 1/2" is pretty standard. If your header is a double 2x10 with a 2x4 on the bottom that's it.

Or you can get the RO from your lumber yard or home center. They have the specs in the catalogs. Better safe than sorry.

[This message has been edited by More than a Carpenter (edited April 07, 2000).]

Last edited by XSleeper; 02-05-19 at 06:49 AM.
Old 04-08-00, 06:04 PM
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More then a Carpenter is right. Good Luck

Jack the Contractor
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