For GRP gratings as sandwich gratings, a GRP panel is applied to the gratings and a panel is also laminated to the underside. For this purpose, the concave surface of the grating is sanded away and then the GRP panel is laminated on and the underside is roughened to achieve a good laminated joint.
The panels in our products are usually 3 mm thick. However, the thickness can be adjusted according to the customer’s wishes and structural requirements.
Gratings can be finished with a sanded or chequer plate look. We generally recommend the sanded version, as this has better slip resistance than the chequer plate look.
Gratings with a closed surface type GRP-GES achieve serration class R13, while gratings with a chequer plate look type GRP-TR achieve serration class R10.
High chemical resistance
High slip resistance
Durability: Good corrosion and weather resistance
Gratings can be loaded in the supports and crossbar direction
Electrically insulating and low thermal diffusivity
High standing and walking comfort
High slip resistance
Relatively low tare weight = lower transportation costs
Resin finishes
Fire classes
Type: GRP-K538-38-5
| GRP | material |
| K | concave |
| 5 | Width of bars 5 mm |
| 38 | Grating height 5 mm |
| 38 | Pitch 38 x 38 mm |
| 5 | Width of bars 5 mm |
| Height | Width of bars | Pitch in mm | Mesh in mm |
| 13 mm | 5 – 6 mm | 38.1 x 38.1 mm
50.8 x 50.8 mm |
32.1 x 32.1 mm
44.8 x 44.8 mm |
| 15 mm | 5 – 6 mm | 19.05 x 19.05 mm | 13.05 x 13.05 mm |
| 16 mm | 5 – 6 mm | 38.1 x 38.1 mm | 32.1 x 32.1 mm |
| 22 mm | 5 – 6.1 mm | 38.1 x 38.1 mm
19.05 x 19.05 mm |
32 x 32 mm |
| 22 mm | 5 – 6.1 / 4.5 mm | 14.1 x 14.1 mm | 8 x 8 mm |
| 25 mm | 5 – 6.25 mm | 19.05 x 19.05 mm
38.1 x 38.1 mm 40 x 40 mm 50.8 x 50.8 mm 25 x 102 mm 38.1 x 97.6 mm |
12.8 x 12.8 mm
31.85 x 31.85 mm 33.75 x 33.75 mm 44.55 x 44.55 mm 18.75 x 95.75 mm 31.85 x 91.35 mm |
| 30 mm | 5 – 6.9 / 4.5 mm | 12.7 x 12.7 mm | 8 x 8 mm |
| 30 mm | 5 – 6.5 mm | 19.05 x 19.05 mm
20 x 20 mm 40 x 40 mm 38.1 x 38.1 mm |
12.55 x 12.55 mm
13.5 x 13.5 mm 33.5 x 33.5 mm 31.6 x 31.6 mm |
| 35 mm | 5 – 6.8 mm | 38.1 x 38.1 mm | 31.3 x 31.3 mm |
| 38 mm | 5 – 6.5 / 4.5 mm | 14.50 x 14.50 mm | 8 x 8 mm |
| 38 mm | 5 – 6.9 mm | 19.05 x 19.05 mm
20 x 20 mm 25.4 x 25.4 mm 38.1 x 38.1 mm 40 x 40 mm 66.08 x 66.08 mm |
12.15 x 12.15 mm
13.1 x 13.1 mm 31.2 x 31.2 mm 33.1 x 33.1 mm 59.18 x 59.18 mm |
| 40 mm | 5 – 7 mm | 40 x 40 mm
83.3 x 83.3 mm |
33 x 33 mm
76.3 x 76.3 mm |
| 50 mm | 5 – 7.5 mm | 25.4 x 25.4 mm
38.1 x 38.1 mm 50.8 x 50.8 mm |
17.9 x 17.9 mm
30.6 x 30.6 mm 43.3 x 43.3 mm |
| 50 mm | 6.5 – 9 mm | 38.1 x 38.1 mm | 29.1 x 29.1 mm |
| 50 mm | 9 – 11 mm | 38.1 x 38.1 mm
25.4 x 50.8 mm |
27.1 x 27.1 mm
13.9 x 39.3 mm |
| 60 mm | 9 – 11.5 mm | 25.4 x 50.8 mm | 13.9 x 39.3 mm |
| 60 mm | 9 – 11 mm | 38.1 x 38.1 mm | 27.10 x 27.10 mm |
| 70 mm | 9 – 11 mm | 38.1 x 38.1 mm
25 x 50 mm |
27.10 x 27.10 mm
13.9 x 39.3 mm |
Discover our fastening systems.
Gratings Tailor-Made. We supply you with pressed and forge-welded gratings in the common standard types in 6-8 working days and in max. 10 working days including technical processing.
We have an extensive stock program. This means you can receive gratings, grating steps, perforated metal planks and GRP-Products in common standard designs and dimensions within 48 hours.
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