To measure the door jamb size you may need to remove any trim moulding or siding you have on the door.
Standard exterior door jamb thickness.
This thickness is designed for.
Custom doors can be made to match any size door opening.
Standard door casing is typically 2 1 4 inch wide and about 5 8 inch thick.
Door installation quick tip.
Should be the dept of the frame not the width covering the sheeting or siding and wall stud.
If for some reason your existing interior door isn t a standard door size don t worry.
Also measure the door jamb to know whether or not your home is existing or new construction type of door.
If the size is incorrect the door may not fit into the opening or not open completely.
Many people measure the inside jamb of the door and decide that this is the jamb width.
It is important to purchase the right size door jamb along with the door to fit your particular application.
Although custom doors do cost more money.
Most entry doors are the same industry wise standard size while different sizes can be special ordered.
The jamb width is the width of the jamb as it meets the wall stud of your house.
Older homes often require a special order door to accommodate the wall thickness.
Typical door jamb sizes are.
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.
4 9 16 for 2x4 frame with drywall.
96 inches or 8 ft.
See this illustration and table for reference.
The standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
The door jamb is the frame that installs in the wall and supports the door via hinges.
This will allow carpet t o be tucked under the jambs and usually leaves enough clearance so the door doesn t rub on the carpet.
The required dimensions to fit a pre hung door including frame and slab jamb size.
If you are going to carpet the floor shim the door jambs off the floor about 3 8.
This is not always the case.
Trim around a jamb is typically referred to as door casing.
Standard interior door jamb thickness on pre hung doors is 4 9 16 inches.
When ordering a new exterior door you must measure the jamb size.
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.
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.