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U-shaped deck, 7 x 4 m

Both front corners are cut back, so the deck wraps whatever sits in the middle. It is the most cutting of any shape here, and the guard runs around more edges — both show up in the numbers instead of being estimated at the end.

U-shape · pressure-treated softwood · 7.0 x 4.0 m · 610 mm above ground

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Drag to turn the deck. This is the same model the designer draws.

What you buy

Worked out from the measurements above by the same take-off the designer uses, with the rule behind every line. No prices: costs only appear once you enter your own supplier rates.

Decking boards
54 at 3.6 m

Rows packed into stock lengths, 8% waste included

Joists
19 at 400 mm centres

Spacing from UK timber decking practice (BS 8579)

Beams
6 (25.0 m)

Carrying the joists down to the posts

Posts and footings
22 posts, 22 footings

Posts at most 1.8 m apart

Concrete
66 bags at 20 kg

Post-set concrete for the footings

Fixings
557 clips

Counted from the board and joist crossings

Railing
17.1 m, 15 posts

Guard at 900 mm above the boards

Steps
4 risers, 3 stringers

Rise about 152 mm per step

Deck area
25.7 sq m

Finished deck, measured to the outside of the frame

Open this project and make it yours.

The designer opens with this deck already drawn. Change the size, the height, the material, railing, steps or country, inspect the full take-off and save a summary PDF. The complete pack adds the merchant order file and site documents.

Open in the designer

Free, no sign-up. This is a material take-off, not a structural design; spans, footings and guards still need checking against local rules.

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