How to measure a terrace correctly
Measure sides, diagonals, thresholds, slopes, cut-outs and obstacles before using the calculator.
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Deck planning guides
Practical guides to measuring, layouts, reducing cuts, drainage and preparing purchases.
How to calculate deck board quantity
A method for calculating area, rows, linear metres, stock lengths and spare material.
OpenHow to choose deck joist spacing
Why spacing depends on the product, board direction, load and manufacturer instructions.
OpenHow to choose gaps between deck boards
Working gaps, expansion, drainage and optimisation of the last course.
OpenDeck slope and drainage direction
How to convert slope percentage and check level difference without replacing drainage design.
OpenHow to reduce deck offcuts
Compare stock lengths, change layout direction, balance edge courses and reuse offcuts.
OpenStraight or diagonal deck layout
How board direction affects appearance, supports, cuts, waste and labour.
OpenWood or composite decking
Compare installation needs, maintenance, expansion and material planning.
OpenPedestals or joists under a terrace
When a pedestal estimate is useful and when joists or full structural design are required.
OpenVentilation and drainage under a deck
Why material planning must account for airflow, water and maintenance access.
OpenCommon deck planning mistakes
Narrow cuts, no spare, wrong spacing, omitted fascia and missed levels.
OpenDeck shopping list
Turn calculator results into an organised material list to confirm with supplier and installer.
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