Choosing a decking board material

Composite vs Timber Decking

Timber costs less to install; composite costs less to own. That summary holds up well in practice, but there are nuances worth knowing before committing.

The sub-frame decision matters as much as the board choice.

Composite Decking and Fencing work by Gardenscape in Essex

Cost over time

Softwood decking is the cheapest way to build a deck, but it needs cleaning, occasional sanding and re-treating every year or two to stay looking good and stay safe underfoot.

Composite boards cost considerably more per square metre and are washed rather than treated. Leading capped systems carry long residential warranties.

Performance differences

Composite does not splinter, rot or need staining, and textured capped boards hold grip well. It does warm noticeably in direct sun, especially in dark colours.

Timber stays cooler and can be sanded back if it weathers unevenly, but it moves with moisture, cups and eventually rots at contact points.

What they share

Both rely entirely on the sub-frame. Composite boards typically need tighter joist centres than timber, and both need ventilation beneath and correct expansion gaps.

A great deck in either material is really a well-built frame with boards on top.

Frequently asked questions

Does composite decking fade?

There is normal initial weathering in the first months, after which quality capped boards hold colour well.

Can I put composite boards on an existing frame?

Only if the frame is sound and the joist spacing meets the board manufacturer's specification.

Which is better for a shaded garden?

Composite — it grows less algae and does not need re-treating in damp conditions.

Timber or composite?

We build both and will quote each so you can compare properly.

Get a decking quote Call 07535 661664