Standard Door Handle Sizes

Two standard backsets are 2 3 8 and 2 3 4.

Standard door handle sizes.

Measure your existing door knobs from the floor up. To measure your existing door you need to take a measuring tape and measure from the bottom of the door to the top of the door most common doors measure. Next you need to determine which direction the door opens in out left right swings. While the commercial door handle height is already 34 to 48 inch which standard you should install the knob and handle carefully if you choose to buy a slab door.

Dummy handles are surface mounted and may be located anywhere on the door you choose but they re usually located to match the appearance of nearby operating locks. Measure from the center of the door knob hole to the edge of the doorway to find the size of the door set. It is more important that your door handles be consistent than that they match the standard door handle height. Standard exterior doors the standard size for an exterior door is 80 inches 6 feet 8 inches by 36 inches 3 feet.

However the standard door handle size also considers the convenience of using it. Other backsets include 2 used by national and lori lock and 5 used by weiser weslock kwikset and others. Then you need to measure the width most common width are 2 6. There are also extensions for some brands like schlage that can extend the latch enough to have the lock located in the center of the door.