How do you size a drywall patch for a hole in a wall?

Drywall
Maintenance & Repair
Punch List

A patch cut to the ragged edge of a hole never sits flat, so the repair starts by squaring the damage up and taking the two dimensions you are actually going to cut. The T1R Range lays a green line across the wall to give you the square edge to work to and reads the distance at the same time, so the patch is cut from a measured rectangle rather than a traced outline. The figures are saved, so the offcut can be checked before it is scored.

How the patch gets sized

A patch cut to a ragged edge never sits flat
T1R green line gives the square reference
Two dimensions, taken off the line
Cut a measured rectangle, not a tracing
T1R Range saves both before you score

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A section of damaged drywall is measured on a painted wall, the torn paper face and broken edge still in place. A green line is laid horizontally across the damage and a reading is taken, the display showing twenty-one and a half and then fourteen and a half. The line is used as the straight reference rather than the broken edge of the hole.