A device by which grating is attached to its supports.

A flat welded to a side or end of a grating panel, or along the line of a cutout, and extending neither above nor below the bearing bars.

Load-carrying members extending in the direction of the grating span.

The distance center to center of the bearing bars.

The distance between faces of bearing bars.

The connecting bars which extend across the bearing bars, perpendicular to them. Where they intersect the bearing bars, they are welded, forged or mechanically locked to them.

The distance center to center of the cross bars.

A cutout following a curved pattern.

An area of grating removed to clear an obstruction or to permit pipes, ducts, columns, etc. to pass through the grating.

The coating, usually paint or galvanizing, which is applied to the grating.

The dimension of a grating panel measured parallel to the bearing bars.

Grating which has the top surfaces of the bearing bars or cross bars, or both, notched.

The distance between points of grating support, or the direction of this dimension.

That portion of the cut edge or cutout of a grating which follows a straight line.

A flat bar attached flat against the out edge of a grating and projecting above the top surface of grating to form a lip or curb.

The overall dimension of grating panel, measured perpendicular to the bearing bars.