DIY Decking Calculator - Stumps, Bearers, Joists and Boards

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Deck Length		Bearer Thickness
Deck Width		Bearer Depth
Stump Width		Double Bearers
Stump Height		Bearer Set In Inner
Stump Centres		Bearer Set In Outer
Stump Set In		Bearer Centres
Footing Diam:		Joist Thickness
Footing Depth		Joist Depth
Board Width		Joist Centres
Board Thick		Draw Bearers Draw Joists
Board Gap	mm	Draw Boards Draw Stumps
Centres Adjusted to Fit

Geometric Calculator only - Check Local Building Codes re spans and sizes !

Inner

Outer

No Allowance For Waste

Stumps

24 @ 200 X 200
1520 Centres (along bearer) < 1267 - 1900 >
Ends Set in 100
24 m - 0.96 m³
1.02 m³ Concrete in footings
100, 1620, 3140, 4660, 6180, 7700

Bearers

4 @ 200 X 50
1250 Centres < 938 - 1875 >
Set in (Joist Overhang) - Inner 100 - Outer 100
32 m - 0.32 m³
From Inner - 100, 1350, 2600, 3850

Joists

19 @ 100 X 50
442 Centres < 418 - 468 >
76 m - 0.38 m³
0, 442, 883, 1325, 1767, 2208, 2650, 3092, 3533, 3975, 4417, 4858, 5300, 5742, 6183, 6625, 7067, 7508, 7950

Deck Boards

52 boards wide @ 76 X 19 (2 mm gap)
416 m - 0.6 m³
1976 screws @ 2 per board (No Waste or Joins)

Deck Board Calculator !

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Contact

Greg Tarrant
ph: (Australia)
+61 7 40987645
mob: 043 816 5753

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Blocklaying and Bricklaying.
Masonry Construction Specialists.
Port Douglas - Mossman - Cairns Australia
ph: 0400 508 558

The Internet For Blocklayers

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Questions or Suggestions? ph: +61 7 40987645

ALWAYS CHECK WITH YOUR LOCAL BUILDING AUTHORITY BEFORE LAYING OUT OR BUILDING ANYTHING
AND FOLLOW ALL LOCAL CODES. VERIFY ALL DIMENSIONS AND ANGLES BEFORE CONSTRUCTION

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