Project category

Decks & Fences calculators

Decking, fence post and panel calculators.

Fence Cost Calculator per Metre UK — Posts and PanelsEnter one straight fence length or list every straight section, then add actual panel width, gates and supplier prices to get posts, panels, a VAT-aware material total and a comparable cost per metre.
Decking Calculator — Boards, Joists, and FixingsEnter metric deck dimensions and the approved board, joist, and fixing layout to get boards, joists, regular fixings, whole packs, and optional entered-price cost.

How these decks & fences calculators work

Each calculator starts from site measurements in metres and millimetres, converts them with a tested formula, shows the exact quantity and your waste allowance as separate lines, then rounds up to the package or order unit you actually buy. Prices are optional and always entered by you, so the estimate reflects your supplier rather than a national average.

Decks & Fences measuring guides

Step-by-step guides with worked examples and reference tables for United Kingdom.

How Much Decking Do I Need? (UK Boards, Joists and Screws)How much decking do I need? Rows = deck width ÷ (board + 5 mm gap), times boards per row, plus 10%. UK board sizes, joists, screws and a 3.6 × 4.8 m example.