It s a common practice to add another 1 8 inch for some leeway to ensure the jamb covers adequately making the average door jamb 4 5 8 inches wide.
Common door jamb sizes.
If you do not remove the trim measure from the inside edges of the trim or moulding make sure you are measuring from the visible edges of the jamb to get the correct size.
Also measure the door jamb to know whether or not your home is existing or new construction type of door.
Typical door jamb sizes are.
This is an important section to read prior to ordering your new pre hung door unit.
In order for the door to fit accurately to the opening without the possibility of future problems you have to get the true measurement of the wall.
If for some reason your existing interior door isn t a standard door size don t worry.
The door jamb is the frame that installs in the wall and supports the door via hinges.
96 inches or 8 ft.
Next not all doors are exactly the same size.
Measure a rough opening if you re not sure if you have a standard width opening measure the distance from wall to wall on the outside and add 1 8 inch.
This is not always the case.
To measure the door jamb size you may need to remove any trim moulding or siding you have on the door.
Most door openings in newer houses are made standard sizes and if you replacing an old door the opening already made to fit a new door in.
Rough door openings sizes for pre hung door.
Some door manufacturers sell doors in 7ft 8ft heights and door widths from 24 inches to 42 inches.
Custom doors can be made to match any size door opening.
Jan 20 2017 learn what is a jamb and how to measure the width of your door jamb.
Normally this isn t much but if your rough opening was tight or exactly the size of the door and the jamb you may not get the door to function properly without having room to adjust.
The sizes of the door will vary by manufacturer.
Standard interior door jamb thickness on pre hung doors is 4 9 16 inches.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
If the wall made of 2x6 1 x 5 actual dimensions it is possible to find a door with a 6 9 16 width of door jamb.
The depth of a standard door jamb is 4 5 8 inches which provides an extra 1 8 inch to account for slightly thicker walls due to stud size variation.
Many people measure the inside jamb of the door and decide that this is the jamb width.
Although custom doors do cost more money.
The standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.