| Light duty walkways Two Way Pedestrian Walkways and Platforms |
High Density Pedestrian Walkways and Platforms |
Mesh Sizes
| Safelock | |
| Load Bearing bar centres (A) | Transverse bar centres (B) |
| N (30mm) | 100 (mm) |
| W (41mm) | |
As standard, load bearing bars are spaced at 41mm however they can be spaced at 30mm centres which will increase the load bearing capabilities of the grating or simply reduce the mesh size. Safelock load bearing bars are machine serrated as standard to provide optimum slip resistance.
To enable machine serrations in both directions (double serrated), the transverse bars are made from 13mm x 13mm x 3mm inverted angles and then pressure locked into the load bearing bars. The angle bars are usually spaced at 100mm centres as standard.
Loading Criteria
BS4592-0:2006 gives minimum design loads for platform and walkways as per the below table.
| USE OF PLATFORM OR WALKWAY | UDL | CONCENTRATED LOAD OVER AN AREA OF 300MM x 300MM |
| Light Duty (1 person) | 3.0 kN/m2 | 1.0 kN |
| General (regular two way pedestrian traffic) | 5.0 kN/m2 | 1.0 kN |
| Heavy duty (high density pedestrian traffic) | 7.5 kN/m2 | 1.0 kN |
Lionweld Kennedy have devised a set of load tables to give a quick reference guide to the maximum allowable clear span for each of our grating types. Simply click on the required load table on the side bar of the main Flowforge page to access our loading information.
How to order
- Select the loading requirements from the above table.
- Determine your maximum clear span (open area between supports) and using our load tables select the required load bearing bar size.
- Select the required mesh size.
- Choose your surface type and finish. (Safelock is offered with a ‘Double Serrated’ surface as standard)
EXAMPLE
| REQUIRED INFORMATION | FLATBAR SIZE | MESH SIZE | SURFACE TYPE | FINISH |
| EXAMPLE | 25×5 | N 100 (30/100) | Double Serrated | Galvanized |