Common Door dimensions

Index: Common measurements: Doors

Common Door dimensions

Door openings

It should be unnecessary to mention but just in case, you usualy want the door opening to be a bit wider and taller than the actual door to allow room for the frame.

Residental entrance doors

	RL	133%	150%	200%
Height
Min.	2	2.7	3	4
Typical	2.2	2.9	3.3	4.4
Width
Min.	0.6	0.8	0.9	1.2
Typical	0.8	1.1	1.2	1.6
Max.	1	1.3	1.5	2

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Residental interior doors

	RL	133%	150%	200%
Height
Min.	1.9	2.5	2.9	3.8
Typical	2	2.7	3	4
Max.	2.1	2.8	3.2	3.8
Width
Min.	0.6	0.8	0.9	1.2
Typical	0.7	0.9	1.1	1.4
Max.	1	1.3	1.5	2

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Door handles and door knobs

Mounting height

	RL	133%	150%	200%
Typical	1.05	1.4	1.6	2.1

Door knob diameter

There are two standard diameters for door knobs, 2 3/8 and 2 3/4 inches. That is for the mounting plates of the knob, the head will be a little bit smaller.

	RL	133%	150%	200%
2 3/8	6 cm	8 cm	9 cm	12 cm
2 3/4	7 cm	9.5 cm	10.5 cm	14 cm