Decking Calculator
Use our Decking Calculator to enter deck size, board direction, and edges to configure picture frames, overhangs, and fascia — get precise linear board and screw quantities with optional joist and bearer setup.
How It Works
The Decking calculator takes your deck length and width, plus board direction, to determine the field layout and total linear board length.
Configure picture frame borders, overhangs, and fascia independently for each edge, and choose if your measurements are finished dimensions (outside of boardwork) or framing dimensions (inside of structure).
It calculates linear decking quantity and screw counts based on your joist spacing and, optionally, bearer layout for accurate fixings.
Key Features
- Linear decking quantity based on board direction
- Screw quantity from joist spacing and fastener pattern
- Per-edge configuration: picture frames, overhangs, fascia
- Choose finished vs framing input dimensions
- Configure joist spacing and optional bearer layout
How to Use
- Enter deck length and width
- Select which way the boards run (along the length or width)
- Choose whether dimensions are finished or framing
- Set per-edge options: picture frame on/off, overhang amount, fascia on/off
- Set board size, joist spacing, and optional bearer layout
- Review linear decking quantity, screw count, and edge details
Decking Calculator
Universal Measurement Support
All calculators support both imperial and metric units
Common Applications
Material Optimization
Order exactly what you need, reducing waste and saving money on materials.
Professional Results
Achieve perfectly spaced boards and clean edges for a high-quality finish.
Time Efficiency
Eliminate guesswork and recalculations during the installation process.
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