steel grating area measurements
1. Grating processing as per user’s supplied dimensions and without drawings, which its area measurements shall be based on actual delivered grating quantities by the sum of length and width, with no deduction made for opening and cutouts.
2. Final calculated grating quantities supplied from drawings shall be on the basis of gross area measured to the total periphery (critical) dimensions in drawings, with no deduction made for opening and cutouts.
3. For special shaped gratings, the final grating area shall be based on the total gross area calculated to length (L) by width (W) of all the pieces furnished, with no deduction made for cutouts. See the following sketches of typical examples
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