How this calculator works
Estimate decking boards from deck dimensions, board width, gap and board length.
courses ≈ deck width ÷ (board width + gap); total linear length = courses × deck length
Exterior · Calculator
Estimate decking boards from deck dimensions, board width, gap and board length.
Estimate decking boards from deck dimensions, board width, gap and board length.
The calculator uses the following core relationship:
Estimating note: Actual material quantities can vary with site conditions, detailing, product dimensions, installation method, and waste.
Estimate decking boards from deck dimensions, board width, gap and board length.
The calculator uses inputs such as Deck length (m), Deck width (m), Board width (mm), Board gap (mm), and Board length (m). Use values from your drawings, measurements, product data, or project specifications.
Use outputs such as Board courses, Linear board length, Boards to buy, and Deck area for estimating and cross-checking. Before purchasing or construction, confirm the dimensions, units, waste factors, supplier packaging, and project specifications.
Continue your estimate with related Architect Tools.