According to BS EN 10204-3.1, the gratings are hot dip galvanization as per ASTM A123. Standard gratings are typically available in 6m x 1m or 20’ x 3’ panels. They can be produced with almost any combination of pitch sizes.

This is usually 41mm x 100mm or 30mm x 100mm. Load bearing bars of width 20mm to 100mm and thickness 3mm to 6mm can be used. Bars can be plain or have a serrated edge finish of various depths. Panels are available in self-colour or with a galvanized coating to international standards.