"When building a deck with either Woodgrain, Hollow or Solid Decking Boards, there needs to be a sturdy support structure beneath. Or, when cladding a building, Composite Structural Joists are necessary for support and stability.
For suitable installations, it is recommended to have one Joist for every square meter of Decking or Cladding Boards, and fitted every 400mm of Deck or Cladding.
Product Specifications:
Charcoal colour only
Measurements: 4000mm x 50mm x 30mm
Weight: 5.16kg "