deck.design

A free interactive planning tool for garden decking, built for UK homeowners and landscapers. Draw your deck's exact shape on a live canvas — notches, sections, stairs, even an opening around a tree — choose real decking, joist, and edging products, and get a fully itemised bill of materials: boards, subframe timber, posts, and fixings, priced live and recalculated as you edit.

An optimisation solver plans the actual board layout and cutting list for your design — which stock lengths to buy and where the seams fall — checked against published joist and bearer span guidance, so the list is one you could hand to a builder or take straight to a merchant.

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• Decking guides — costs, spans, foundations, and ranges
• About deck.design
• Privacy
• Affiliate disclosure