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 Setin Inner (Joist Overhang)
Stump Centers		Bearer Setin Outer (Joist Overhang)
Stump Set In		Bearer Centers
Board Width		Joist Thickness
Board Thickness		Joist Depth
Board Gap		Joist Centers
Draw Boards	Board Calculator	Draw Stumps
Draw Bearers		Draw Joists
Centers Adjusted to Fit

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

Inner

Outer

No Allowance For Waste

Stumps

24 @ 8" X 8"
2'11~3/16" Centers (along bearer) < 2'5~11/32" - 3'8" >
Ends Set in 4"
72' - 32 ft³
4", 3'3~3/16", 6'2~13/32", 9'1~19/32", 12'13/16", 15'

Bearers

4 @ 6" X 3"
2'4~11/32" Centers < 1'9~1/4" - 3'6~1/2" >
Set in (Joist Overhang) - Inner 4" - Outer - 4"
64' - 8 ft³
From Inner - 4", 2'8~11/32", 5'21/32", 7'5"

Joists

12 @ 4" X 2"
1'5~9/32" Centers < 1'3~27/32" - 1'7" >
96' - 5.33 ft³
0, 1'5~9/32", 2'10~17/32", 4'3~13/16", 5'9~3/32", 7'2~3/8", 8'7~5/8", 10'29/32", 11'6~3/16", 12'11~15/32", 14'4~23/32", 15'10"

Deck Boards

46 boards wide @ 2" X 1/2" (1/8" gap)
736' - 5.11 ft³
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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Wonga Beach Q.L.D. Australia
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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