BS EN ISO 14122 Parts 1-4 & BS 4592-0 & -1 are the guiding factors for our industry
BS 4592-0 has been amended to come into line with the mandatory EURO-NORM BS EN 14122
These British & European standards govern, and stipulate, maximum openings in open grate floorings.
35mm Sphere proof
All grating forming part of a platform or walkway above areas and places where people will pass below occasionally should stop a 35mm diameter sphere.
20mm Sphere proof
All grating forming part of a platform or walkway above areas and places where people are working should stop a 20mm diameter sphere.
Lichtgitter are able to offer CE Marking against products that are welded against execution class 2.
Certificates are available on request.



