Abstract: A grating for a support structure includes a piece of metal including a perimeter edge and a surface bound by the perimeter edge. The piece of metal defines an array of uniform surface modifications on the surface of the piece of metal. The uniform surface modifications are arranged in a repeated pattern across the surface. The repeated pattern of uniform surface modifications is consistent across the surface but for at least a pair of spaced apart areas of inconsistency where the uniform surface modifications are not formed in the surface. Each area of inconsistency is surrounded on all sides by the array of uniform surface modifications. The pair of areas of inconsistency provides an indication of where to attach a structure to the grating.

Abstract: A grating for a support structure includes a piece of metal including a perimeter edge and a surface bound by the perimeter edge. The piece of metal defines an array of uniform surface modifications on the surface of the piece of metal. The uniform surface modifications are arranged in a repeated pattern across the surface. The repeated pattern of uniform surface modifications is consistent across the surface but for at least a pair of spaced apart areas of inconsistency where the uniform surface modifications are not formed in the surface. Each area of inconsistency is surrounded on all sides by the array of uniform surface modifications. The pair of areas of inconsistency provides an indication of where to attach a structure to the grating.