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AVS Decking Calculator

This decking calculator is to be used as a guide only. There are many variables to consider when constructing garden decking, including ground conditions and frequency of use. Give the team a call if you need a hand.

Enter your measurement requirements (in millimetres) into the calculator

Deck Length
Deck Width
Post Width
Post Height
Post Centres
Post Set In
 
Footing Diam:
Footing Depth
Board Width
Board Thick
Min Board Gap
Beam Thickness
Beam Depth
These require longer posts to maintain deck height
Joist overhang from inside of beam to end of joist and edge of deck Beam Set In Inner
From outside of beam to end of joist and edge of deck Beam Set In Outer
Beam Centres
Joist Thickness
Joist Depth
Joist Centres
This allows deck board overhang at each end of deck End Joists Set In
 

Centres are adjusted to fit evenly
7 Posts / Beam @ 1275
6 Beams @ 750
20 Joist @ 416
Cost: Total £0.00 ... Enter Lineal Costs
Linear measurements do not allow for waste
Total Deck Height  819 (Post base to board top)
Posts
42 @ 150 x 150 x 500 = 21 lineal metres - 0.47 m³
1275 Centres (along beam)
1.78 m³ Concrete in footings
Post Running set-out points along Deck - along Beam (to near side of each post)

100, 1375, 2650, 3925, 5200, 6475, 7750 Mark-out

Post Running set-out points across Deck - along Joist from Inside (to near side of each post)

50, 800, 1550, 2300, 3050, 3800 Mark-out

Beams
6 @ 200 x 50 = 48 lineal metres ~ 0.48 m³
750 Centres
Beam to Post connections 42
Beams Running set-out points, across Deck - along Joist from inner side (to near side of each beam)

100, 850, 1600, 2350, 3100, 3850 Mark-out

Joists
20 @ 100 x 50 = 80 lineal metres ~ 0.4 m³
416 Centres
Joist to Beam connections 120
Joist Running set-out points along Beam (to near side of each joist)

20, 436, 853, 1269, 1685, 2102, 2518, 2934, 3351, 3767, 4183, 4599, 5016, 5432, 5848, 6265, 6681, 7097, 7514, 7930 Mark-out

Deck Boards
View our decking boards
47 boards wide @ 83 X 19
2.2 mm gap
376 lineal metres ~ 0.59 m³
Board to Joist connections 940. 1880 screws @ 2 per board (No Waste or Joins)
   
Mark Every Board.


Deck Board Calculator Board Running set-out points. Select board multiples to set out board placement.

85, 170, 255, 341, 426, 511, 596, 681, 766, 852, 937, 1022, 1107, 1192, 1277, 1362, 1448, 1533, 1618, 1703, 1788, 1873, 1959, 2044, 2129, 2214, 2299, 2384, 2469, 2555, 2640, 2725, 2810, 2895, 2980, 3065, 3151, 3236, 3321, 3406, 3491, 3576, 3662, 3747, 3832, 3917 Mark-out

Costs
Enter cost per lineal metre and wastage % for Posts, Beams, Joists and Boards to Calculate individual and Total Costs. Lineal metres and cost are auto updated when the deck is re-calculated, with individual costs for posts, beams and joists displayed in each section. Hit + and - buttons to open or close spacing, re-calculating the deck to find how different spacing options effect cost and materials.
Enter Costs per Lineal Metre and % waste
Posts 21 m of 150 x 150 + % Waste at £ per metre
Beams 48 m of 200 x 50 + % Waste at £ per metre
Joists 80 m of 100 x 50 + % Waste at £ per metre
Boards 376 m of 83 x 19 + % Waste at £ per metre
Connections:
Beam to Post = 42
Joist to Beam = 120
Deck Board to Joist = 940

Please enter your full delivery postcode so that we can give you accurate stock availability and prices.



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