The dimensions of the table can be combined freely in longitudinal(L) and lengthwise(B) directions. Note however the basic dimensions of the chosen grating panel.

Gratings cut to dimensions as listed in the below table have smooth edges (i. e. no "fingers"). Cutting tolerance +2 /-5.

The outside grid of whole panels is 3 mm smaller than the inside grid.
Gratings cut to smooth edges, where the inside grid is used, is therefore 3 mm smaller than listed in the table. Allowances were made for this in the cutting tolerances.

Grid size 20 x 20 / 38 x 38 mm: