Squareness
In addition to achieving a certain length and width tolerance, shearing is used to make a sheet square. Checked for by measuring the distance between diagonally opposing corners, the amount a sheet is out-of-square is determined by taking 1/2 the difference of the measurements. Squareness is achieved by trimming the sides and/or ends.
The following tolerances are achievable for re-squared sheets. For the tightest tolerances possible, specify Diamond Superior.
| Diamond Standard | Diamond Superior | |||||
|---|---|---|---|---|---|---|
| Up to 72" | 72" to 120" | Up to 120" | ||||
| Thickness Range | Max. Tolerance Out of Square | Difference of Diagonal Measure | Max. Tolerance Out of Square | Difference of Diagonal Measure | Max. Tolerance Out of Square | Difference of Diagonal Measure |
| 30 - 20GA | 1/32" | 1/16" | 1/16" | 1/8" | 1/32" | 1/16" |
| 19 - 16GA | 1/16" | 1/8" | 1/8" | 1/4" | 1/32" | 1/16" |
| 15 - 12GA | 3/32" | 3/16" | 3/16" | 3/8" | 1/16" | 1/8" |
| 11 - 7GA | 3/16" | 3/8" | 3/8" | 3/4" | 1/16" | 1/8" |
REMINDER: Unless Diamond Superior is specified, Diamond Standard tolerances are supplied.