The rough opening width for a 24" door is 26-1/2" The rough opening height for a 24" door is 26-5/8" Rough openings are 2" wider and 2-1/2" taller than the actual door. This allows room for the door frame and adjustment.
+ 2 1/2" each way.
Add 2 1/2" each way.
38" it's actually 82 3/4" high and 38" wide
28 inch is all you can get in that. Any door needs a minimum of 1 1/2 more than the door size.
Remember 36" is the width of you door slab. If you can measure the door you want to frame in then take the measurement and add 3/4" to it so you can still have room on the side to shim it properly. If you don't have the door but know which one you want, go to the store and the door will normally have the rough opening size on the label.
standard height door (80" tall) 2' 6" wide door. Rough opening width is oversized 2"
36 inches IS the width. . .normally doors come in 24, 28, 32, or 36 inch widths, and either 6'8" or 8' height
Rough opening requirements vary by door manufacturer. It would be best to check with the lumberyard where you plan to purchase the door, but if you've got to get it framed now, make it 38-1/2" wide, and 6'-11" high. You can always build it in later if necessary.
no no
Add two inches to height and width. So a 36 x 80 door roughed out is 38 x82. This is with doors only. Windows you add 1 inch to the height and width.
For a 30" door, the rough opening would be 32" in width and 82" in height. Check with your local building inspection department just in case a larger door is required.