For the 36 x 80 exterior doors, this rough opening will need to be 38 ¼ inches by 82 1/8 inches.

Standard prehung door sizes. The door jamb is simply the width of the prehung door’s frame. 2/0, 2/4, 2/6, 2/8, 2/10, 3/0, 3/6. For entry doors, the standard door sizes are:

Likewise, single doors with sidelight (s) will need to include the width of the sidelight (s) itself in the full door. A 3/0 width door is commonly used in a single slab entry. To measure the door jamb width, simply measure from the backside of the trim to the backside of the interior trim.

All dimensions may vary up to 1/4″ maximum. As you can see, the standard exterior door size rough opening is a full 2 ¼ inches wider than 36. Standard prehung interior door sizes.

Standard door width for interiors is 32 inches. The height for all passage doors must be a minimum of 80 inches and the standard width sizes for interior doors are 24”, 28”, 30”, 32” and 36”. Prehung steel door specification guide.

Once your hinge side is set in place, move on to the latch side of the doorframe. Prehung interior door standard sizes. The most common width for interior doors is 32 inches.

Standard widths for different types of interior doors can be anywhere between 24 inches and 36 inches. You may also find a few narrower doors in stock, including 30 inches, 28. The height for all passage doors must be a minimum of 80 inches and the.