Standard Interior Door Rough Opening

Measure the opening to your door frame.

Standard interior door rough opening.

Be sure to allow for about a 1 inch larger opening than the standard door sizes. There are three simple rules to framing rough openings efficiently. Now all you need to know is how to properly frame your door rough opening. The standard height of the rough opening for a door is the door height plus 2 5 8 inches.

The rough opening for a standard sized interior door is 2 inches wider than the state size of the actual door. Add 2 to 2 1 2 inch to the measurement of the door s width to determine the total width of the rough opening. If you re going to frame a rough opening for a door then you ll need to know the unit size. The 6 8 stands for 6 8 tall and the 3 0 stands for 3 0 wide.

Interior knockdown frames that wrap wall a opening width 2 b opening height 1 the rough opening would be 38 x 85 for a 3 0 x 7 0 door frame. You should add 2 1 2 to the height of the actual door. Just add 2 to the width of the actual door size. Doors come in a variety of sizes so a general rule of thumb or practice is considered.

Standard door rough openings. Door widths vary but an easy way to size the rough opening is to use the door width plus 5 in. You may also find a few narrower doors in stock including 30 inches 28 inches and 24 inches. And avoid toenailing when possible.

This takes into account the thickness of a standard 3 4 inch doorjamb on each side. This will give you room to space the door frame off of the sub floor. For example let s say we want to frame a 6 8 x 3 0 front entry door. The additional room allows for a 3 4 inch top jamb a shim space above the door jamb and the thickness of.

As the distance between the king studs. Standard interior door width is 32 inches. For fire rated openings drywall must extend at least 1 2 into frame. Framing rough opening sizes are really quite simple.

Therefore the rough opening would be 82 1 2 tall by 38 1 2 wide.