Garden Decking Calculator
Calculate the materials for a practical garden decking build using standard joist and post spacing.
Results - Garden Decking Calculator
Enter your measurements and press calculate.
Garden decking notes
This is the garden-decking variant of the main decking estimator, useful for landscaping-led searches while keeping the same practical build assumptions.
Popular sizes
These decking presets cover the board-and-joist sizes people actually price up for garden platforms, seating areas and raised decks.
Garden decking searches usually revolve around standard entertainment areas, hot tub surrounds and raised seating platforms. Pages such as 2.4m × 1.8m, 3m × 1.8m, 2.4m × 2.4m, 3.6m × 1.8m create direct landing pages for board counts, joists, posts, screws and ground preparation materials.