Decking Calculator
Estimate deck boards, screws, and cost from your deck's dimensions and board size.
Boards needed
47
Breakdown
- Deck area (m²)
- 24
- Board rows
- 28
- Linear meters
- 168
- Screws (approx.)
- 480
- Board cost
- $846.00
Last updated:
FAQ
Why does the gap between boards matter?
The gap is part of every repeating row, so a 5 mm spacing on 14 cm boards adds about 3.5% more boards — small gaps, real money.
How many screws per deck board?
Two fasteners at every joist crossing is the norm; this estimate uses roughly 20 screws per square meter as a planning figure.
Should boards run parallel or perpendicular to the house?
Boards usually run parallel to the house for looks and fewer butt joints; either way the count is the same, only cut lengths change.
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