Shiplap calculator — metres & 2.4 m boards
Your wall in three answers
Corner to corner, in metres.
Floor to ceiling, in metres.
How long the boards are at the store. Longer boards mean fewer joints.
No calculate button — the numbers follow your typing. The address bar always holds this exact setup: copy it to ask someone “does this look right?”
Wall preview
Final row needs cutting, leftover width: 4.7 cm
3.6 m × 2.3 m = 8.28 m² total.
What you need
10% waste includedBoard rows
17rows
14.1 cm face each
Total linear
61.2 m
8.28 m² covered
Boards to buy
32boards
about 8 packs of 4 · 3 spare
29 boards needed with cutting waste, rounded up to 32 (about 8 packs). Each board covers 14.1 cm once the reveal is taken off.
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17 rows, 61.2 m of board, 32 boards to buy.
Your shopping list
32 boards (about 8 packs) · 8.28 m² · 10% waste built in
- 1
Buy 32 2.4m 150 mm shiplap boards (about 8 packs of 4)
- 2
Buy 1 box of 40 mm 18-gauge brad nails
- 3
Buy 2 tubes of Liquid Nails construction adhesive
29 boards needed with waste, rounded up to 32 (about 8 packs) — 3 spare. A second trip costs more than a spare board.
What will it cost?
Pop in the shelf price. 32 boards (about 8 packs of 4) at the store.
- Shiplap boards32 × £9.99 each
£319.68
- Brad nails1 box × £6.49
£6.49
- Construction adhesive2 tubes × £4.99
£9.98
Project total
Fixings: £16.47 · £40.60 per m²
£336.15
Excludes paint, caulk, primer and tools. Prices are estimates you can edit above.