Decking Calculator
Use our decking calculator to work out how many boards, joists, and fixings you need for your project. Simply enter your deck dimensions below and select your products to get an instant quote.
1
Enter Your Deck Dimensions
Total Deck Area:
12.0
m²
2
Choose Your Deck Boards
Apex Composite Deckboard Amarillo Oak 24x140mm 4800mm
£68.45 each
Apex Composite Deckboard Silver Birch 24x140mm 4800mm
£68.45 each
HD Deck 3D 25x146mm Black Oak 3600mm
£40.70 each
HD Deck 3D 25x146mm Burnished Oak 3600mm
£40.70 each
HD Deck 3D 25x146mm Golden Oak 3600mm
£40.70 each
HD Deck 3D 25x146mm Weathered Oak 3600mm
£40.70 each
HD Deck Dual 22.5x143mm Antique/Carbon 3600mm
£32.85 each
HD Deck Dual 22.5x143mm Natural Oak/Slate 3600mm
£32.85 each
HD Deck Dual 22.5x143mm Oak/Walnut 3600mm
£32.85 each
HD Deck Dual Bullnose 22.5x150mm Antique 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Carbon 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Natural Oak 3600mm
£0.00 each
HD Deck Dual Bullnose 22.5x150mm Oak 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Slate 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Walnut 3600mm
£69.95 each
HD Deck Dual End Cap 22.5x143mm Antique Pack 20
£21.60 each
HD Deck Dual End Cap 22.5x143mm Carbon Pack 20
£21.60 each
HD Deck Dual End Cap 22.5x143mm Natural Oak Pack 20
£0.00 each
HD Deck Dual End Cap 22.5x143mm Oak Pack 20
£21.60 each
HD Deck Dual End Cap 22.5x143mm Slate Pack 20
£21.60 each
HD Deck Dual End Cap 22.5x143mm Walnut Pack 20
£21.60 each
HD Deck Pro 23x200mm Oyster/Champagne 3600mm
£72.45 each
HD Deck Pro Bullnose Board 22.5x150mm Oyster 3600mm
£74.35 each
HD Deck XS 25x146mm Lava 3600mm
£34.65 each
HD Deck XS 25x146mm Silver 3600mm
£34.65 each
HD Deck XS 25x146mm Walnut 3600mm
£34.65 each
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HD Deck XS End Cap 25x146mm Lava Pack 20
£21.60 each
HD Deck XS End Cap 25x146mm Silver Pack 20
£21.60 each
HD Deck XS End Cap 25x146mm Walnut Pack 20
£21.60 each
Infinity Composite Deckboard Caribbean Coral Grey 20x140mm 4800mm
£47.85 each
Infinity Composite Deckboard Indonesian Teak 20x140mm 4800mm
£47.85 each
Infinity Composite Deckboard Mossel Bay Grey 20x140mm 4800mm
£47.85 each
Infinity Composite Deckboard Tiger Cove 20x140mm 4800mm
£47.85 each
Infinity SE Composite Deckboard Caribbean Coral Grey 20x140mm 4800mm
£47.85 each
Infinity SE Composite Deckboard Indonesian Teak 20x140mm 4800mm
£47.85 each
Infinity SE Composite Deckboard Mossel Bay Grey 20x140mm 4800mm
£47.85 each
Infinity SE Composite Deckboard Tiger Cove 20x140mm 4800mm
£47.85 each
Millboard Enhanced Grain 3600mm x 176mm x 32mm Coppered Oak
£47.75 each
Millboard Enhanced Grain 3600mm x 176mm x 32mm Golden Oak
£78.07 each
Millboard Enhanced Grain 3600mm x 176mm x 32mm Jarrah
£47.75 each
Millboard Enhanced Grain 3600mm x 176mm x 32mm Limed Oak
£47.75 each
Millboard Enhanced Grain 3600mm x 176mm x 32mm Smoked Oak
£47.75 each
Treated 28x145mm Redwood Deckboard 3600mm
£8.25 each
Treated 28x145mm Redwood Deckboard 4800mm
£11.00 each
Treated 28x145mm Redwood Deckboard 5400mm
£12.35 each
3
Choose Joist Timber
Treated Carcassing Unseasoned 47x100mm 3600mm
£7.40 each
Treated Carcassing Unseasoned 47x100mm 4800mm
£9.90 each
Treated Carcassing Unseasoned 47x150mm 3600mm
£11.10 each
Treated Carcassing Unseasoned 47x150mm 4800mm
£14.05 each
4
Choose Fixings
Composite Prime Fixing Clip and Screws Pack 200
£72.50 per pack
Decking Screw Green 4.5x50mm Box 200
£8.50 per pack
Decking Screw Green 4.5x55mm Tub 1000
£36.35 per pack
Decking Screw Green 4.5x60mm Box 200
£9.55 per pack
Decking Screw Green 4.5x75mm Box 200
£12.40 per pack
5
Edge Trim / Fascia (Optional)
Which sides need fascia?
Click to deselect any side that is built against a wall, fence, or other structure.
DECK
Total fascia edge: 14.0m — all 4 sides selected
No Fascia Required
Skip this step
HD Deck 3D Fascia 11x74mm Black Oak Oak 3600mm
£17.70 each
HD Deck 3D Fascia 11x74mm Burnished Oak 3600mm
£17.70 each
HD Deck 3D Fascia 11x74mm Golden Oak 3600mm
£17.70 each
HD Deck 3D Fascia 11x74mm Weathered Oak 3600mm
£17.70 each
HD Deck Dual Bullnose 22.5x150mm Antique 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Carbon 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Natural Oak 3600mm
£0.00 each
HD Deck Dual Bullnose 22.5x150mm Oak 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Slate 3600mm
£69.95 each
HD Deck Dual Bullnose 22.5x150mm Walnut 3600mm
£69.95 each
HD Deck Dual Fascia 11x150mm Antique 3600mm
£39.95 each
HD Deck Dual Fascia 11x150mm Carbon 3600mm
£39.95 each
HD Deck Dual Fascia 11x150mm Natural Oak 3600mm
£39.95 each
HD Deck Dual Fascia 11x150mm Oak 3600mm
£39.95 each
HD Deck Dual Fascia 11x150mm Slate 3600mm
£39.95 each
HD Deck Dual Fascia 11x150mm Walnut 3600mm
£39.95 each
HD Deck Dual Fascia 11x72mm Antique 3600mm
£19.95 each
HD Deck Dual Fascia 11x72mm Carbon 3600mm
£19.95 each
HD Deck Dual Fascia 11x72mm Natural Oak 3600mm
£19.95 each
HD Deck Dual Fascia 11x72mm Oak 3600mm
£19.95 each
HD Deck Dual Fascia 11x72mm Slate 3600mm
£19.95 each
HD Deck Dual Fascia 11x72mm Walnut 3600mm
£19.95 each
HD Deck Pro Bullnose Board 22.5x150mm Oyster 3600mm
£74.35 each
HD Deck Pro Fascia Board 11x150mm Champagne 3600mm
£44.70 each
HD Deck Pro Fascia Board 11x150mm Oyster 3600mm
£44.70 each
HD Deck XS Fascia 74x11mm Lava 3600mm
£17.05 each
HD Deck XS Fascia 74x11mm Silver 3600mm
£17.05 each
HD Deck XS Fascia 74x11mm Walnut 3600mm
£17.05 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Carbonised
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Coppered Oak
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Golden Oak
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Jarrah
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Limed Oak
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Smoked/Driftwood
£33.35 each
Millboard Bullnose Edging Standard 3200mm x 50mm x 32mm Vintage Oak
£33.35 each
Millboard Fascia Board 3200mm x 146mm x 16mm Carbonised
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Coppered Oak
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Golden Oak
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Jarrah
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Limed Oak
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Smoked/Driftwood
£38.00 each
Millboard Fascia Board 3200mm x 146mm x 16mm Vintage Oak
£38.00 each
6
Handrail / Balustrade (Optional)
Does your deck need a handrail? Recommended above 200mm, legally required above 600mm.
7
Deck Steps (Optional)
Do you need steps up to your deck? Their number is estimated from the deck height you entered above.
8