Cost: timber or composite decking
Compare the complete deck from supporting ground to finishing. Specify board references, framing, supports, fixings and actual coverage. A raised deck and installation on an existing slab cannot be compared through board prices alone.
Editorial update on 19 September 2026
Price what lies beneath
Itemise removal, preparation, foundations or supports and framing. Boards and installation alone can exclude major work. Ask what support assessment underpins the offer.
Compare area and details
Check finished area, ordered quantities, cuts, fixings, edges, steps and hatches. Separate supply and installed prices. When changing ranges, confirm framing and fixing compatibility as well as board price differences.
Assess later costs
Request care instructions, individual board replacement options and written warranty exclusions. Multi-year calculations need stated assumptions; no automatic composite saving over timber is established here.
The three budget levels
Where your money goes
- SupportOn quotationPreparation, supports and framing.
- DeckingOn quotationBoards, quantities and fixings.
- FinishingOn quotationEdges, steps and access.
- InstallationOn quotationHandling, cuts and handover.
What makes the price vary
Existing site
Ground or retained support.
System
Compatible products and structure.
Use
Loads and access.
Geometry
Levels, cuts and junctions.
Indicative scenarios
No grant is deducted from the budget shown here. If a quote mentions support, request the exact scheme and confirmation of your eligibility before including it in financing.
Frequently asked questions
Are board prices enough for comparison?
Compare the installed total with equivalent ground, structure and finishing.
Are steps included?
Identify count, dimensions, structure and finish in the offer.
Is warranty duration a lifespan?
No. Read covered components, exclusions and maintenance terms.
Is composite always cheaper over time?
No general conclusion is justified without comparable offers and care assumptions.
Your exact price, in 2 minutes
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