Grid gratings for platform floor are made of standard black panels with carbon steel material. It is used for a condensers platform. The popular dimensions of the support plates to be used are 1 x 3/16, separated 1.181 in (30 mm), with the top dentate and transversal bars of 30/127 in (6 mm) welded separated 500/127 in (100 mm).

Common sizes:
scale of carrying flat: 34 mm between center to center
scale of transverse bar : 38 mm between center to center
carrying flat heigh 25 mm, thickness 5 mm
transverse bar thickness: 6 mm
type of transverse bar: square twisted bar
carrying flat length: 5800 mm

Width of grates: 1000 mm.