For GRP gratings with a polished surface, the concave surface is sanded down after the production process. The bars are then sealed with a varnish to protect the glass fibers.
Polished Gratings are used where there is a risk of injury due to concave surfaces, for example as fence elements or protection against reaching through. These types of grating achieve serration class R11.
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
Certificates & approvals
Type: GRP-K538-38-5
| GRP | material |
| K | concave |
| 5 | Web width 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.
