How to measure a doorway

By the Tapepal teamUpdated 3 min read

topmiddlebottom80 in31⅞ in
Measure the width at the top, middle and bottom. Use the smallest.
Smallest

Quick answer

Measure the width between the door stops at the top, middle and bottom, and use the smallest. Then the height from the floor to the top of the frame.

On this page3 sections

Three measurements

  1. WidthBetween the stops, the strips the door closes against. Top, middle and bottom.
  2. HeightFloor to the underside of the frame, on both sides.
  3. DepthFront to back of the frame, if you are buying a new door.

Standard door sizes

Common widthOpening to carry throughUsual height
30 inabout 28 in80 in (6′ 8″)
32 inabout 30 in80 in (6′ 8″)
36 inabout 34 in80 in (6′ 8″)

These are door sizes. The opening you can carry things through is smaller, because of the stops and the door itself when it is open.

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Questions

Do I measure the frame or the opening?

The opening between the stops. That is what things have to pass through.

Why measure three times?

Old frames are rarely square. The smallest number is the one that matters.

What about double doors?

Measure with both doors open, between the inside edges.

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