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Watco GRP Decking Strips

Tough GRP strips for instant safety on decking

  • Suitable for heavily used commercial decking
  • Pre-drilled for easy application
  • Free cut to size service available
  • Chamfered edges minimises trip hazards
  • Sold in single lengths
Frequently bought together


Wooden decking and ramps can be hazardous in the wet or become slippery with algae in shady or damp conditions. Damp, slippery timber can be made safer instantly using Watco GRP Decking Strips.

Recommended areas of use

  • Wooden decking, walkways, jetties, pontoons, marine slipways, bridges


  • Waterproof and rot proof–ideal for timber which regularly gets wet
  • Pre drilled for screw fixing (screws supplied)
  • Cut to size service available for non standard sizes
  • Can be trimmed on site using a hacksaw if required
  • Suitable for domestic and commercial decking (unsuitable for barefoot areas)
  • Chamfered edges minimise trip hazards
  • Pre drilled for easy fixing to timber
  • Prices include screw fittings

Holes are pre drilled in Watco GRP Decking Strips at approximately 300mm intervals. One row of holes is drilled in the 50mm and 90mm wide strips, two rows in the 120mm width. Holes are 50mm in from each end. Screws are supplied for fixing to timber. 

Watco Medium Grade Decking Strips are solid in 1200mm and 2400mm lengths and 50mm or 90mm widths. It is designed for areas of decking mainly used by children or vulnerable adults.



Properties Makes slippery decking safer, waterproof and rot proof, pre drilled for screw fixing (screws supplied), cut to size service available for non standard sizes, can be trimmed on site using a hacksaw if required, suitable for domestic and commercial decking
Suitable for Floors
Interior or Exterior Exterior
Primer required No primer required



If you need to cut the GRP product, a good quality abrasive disc, jigsaw or hacksaw can be used. The GRP material is quite tough to cut by hand, so if power tools are not readily available, please ask about our cut to size service.

If appearance is critical we recommend the application of a small trial area first.


If mechanical fixing is required, the following may be used as a guide:

  • To timber: no.8 x 30mm zinc plated or stainless steel screws
  • To steel plate: no.8 x 20mm self-tapping pan head Pozi stainless steel screws or No.8 x 20mm self drilling pan head Philips zinc plated screws
  • To concrete: no.8 x 30mm zinc plated or stainless steel impact anchors (Hilti HPS-1 or similar)
  • To open mesh: stainless steel or zinc plated saddle clips and domed head bolts suitable in length for the depth of the existing treads


Lay the items in place to ensure that they fit. Trim using a jigsaw with medium cutting blades (Bosch TI01 AIF or similar are ideal).

These are supplied pre-drilled by us. We use a number 10 drill and a number 8 screw. The larger hole size allows for any slight movement that may arise due to the long, thin shape on timber which can flex or expand. If any additional screw fixings are required, please use a number 10 drill and number 8 screw.

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Technical Data Sheet
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£12.50 (Ex VAT)

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Watco GRP Decking Strips

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