Composite floor deck, Betopan and Boardex: where each is used

These three materials do different jobs but turn up in the same place: the floors and walls of a steel-framed building. All three work on dry-system logic, reducing wet trades.

Composite floor deck — permanent formwork

Galvanised trapezoidal sheet that acts as formwork in a reinforced concrete slab. It is not stripped after the pour; it stays in the structure and becomes part of the floor. Sheet thickness is typically 0.80 – 1.20 mm and it arrives cut to length.

The gain is that formwork stripping disappears entirely: erecting and dismantling falsework, cleaning forms and waiting all drop off the list. In multi-storey steel-framed buildings this is one of the most visible savings in the programme.

Cement-bonded particle board

Made by pressing cement with wood particles. Usually 1250 × 2500 mm, 8 – 20 mm thick. Used in non-loadbearing walls, floor build-ups and facades. What separates it from timber board is the moisture and fire behaviour that the cement content brings.

Fibre-cement flat board

Fibre-reinforced cement board with a flat face. 1250 × 2500 mm, 6 – 20 mm thick. Preferred in wet areas, facades and partitions; the flat face suits finishes and paint.

Which, where

Permanent formwork in a concrete slab: composite deck. Dry walls, floor build-ups, external cladding: cement-bonded particle board. Wet areas and partitions needing a smooth face: fibre-cement board.

Composite deck is not a covering but part of the structure; its thickness and rib depth come from the calculation.

When ordering

For deck we need the span and slab thickness; for boards, thickness and quantity. Deck is delivered cut to length; boards come in standard sizes.

All three are supplied from our Alanya warehouse. Send the sizes and quantity and we confirm stock and lead time the same day.