Central Michigan · Est. 1890
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Measuring your garage opening

Headroom, side room, and backroom before you order.

August 27, 20254 min readDeWitt Lumber

Garage doors fail to fit for reasons that have nothing to do with the opening width. Take five measurements, not one.

The five numbers

Write these down before you come in and we can quote the right track configuration the first time.

  • Opening width and height, at the finished jamb
  • Side room — the space from each side of the opening to the nearest wall
  • Headroom — from the top of the opening to the ceiling or lowest obstruction
  • Backroom — from the opening back into the garage
  • Any obstruction: ductwork, lights, storage racks, or a low beam

Low headroom has a solution

If you are short on headroom, low-headroom track and a jackshaft opener usually solve it without framing changes. Tell us the number and we will spec around it.

Talk it through with us

Bring your plans, sketches, or photos to any of our four Central Michigan yards. We will walk the options with you, pull real samples, and put together a material list you can build from. Estimating is free for any project.

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Four Central Michigan yards, real samples, and staff who have answered this question before.

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