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Deck with pergola, 5 x 4 m

The pergola stands on the deck itself, so its posts land on the frame and its rafters are counted at their normal spacing. It is the usual way to get shade over a seating area without building a roof.

Rectangle · cedar · 5.0 x 4.0 m · 457 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, 5% waste included

Joists
14 at 400 mm centres

Spacing from UK timber decking practice (BS 8579)

Beams
4 (20.0 m)

Carrying the joists down to the posts

Posts and footings
16 posts, 16 footings

Posts at most 1.8 m apart

Concrete
48 bags at 20 kg

Post-set concrete for the footings

Fixings
432 clips

Counted from the board and joist crossings

Railing
None

No guard needed at this height

Steps
3 risers, 3 stringers

Rise about 152 mm per step

Deck area
20.0 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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