The Deck Professor

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Measure height at the worst corner

Measure this deck the way the code measures height
Height 28 inAt the house 18 inGround
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Measuring at the house on a sloping lot, so the far corner crosses 600 mm (23 9/16 in) unnoticed.

Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.

The rule this lesson teaches

Deck height is the biggest drop from the walking surface to the lowest ground beside it, not the height at the door.

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