Main part: along the house × out. Wider end: its width × how far out it comes.
On the plan: drag the blue corners to reshape, drag a purple dot to curve that edge, double-tap (or double-click) an edge to add a corner and double-tap a corner to remove it. Corners snap onto the house wall.
A picture frame runs boards around the open edges. A breaker board is a board laid across the others so long decks don't need joins all over the place.
Drag the stairs along any open edge on the plan.
Finished your deck? See it with a lawn, garden beds, trees and a path from the stairs. It's a concept only, to help picture the finished yard. The bottom of the stairs is always kept clear.
This is a design concept and a guide only. It must be checked by an engineer or builder before you buy materials or build.
Your postcode
So we can show you a carpenter near you and price your materials list.
Please enter a valid 4 digit Australian postcode.
Quantities are rough guides only. Your real frame depends on height, spans, footings and engineering.
Your materials list
Enter your postcode to get your materials list
Use the postcode box above.
| Item | Qty | From price | Total |
|---|
Not included: stair footing pads, balustrade fixings, concrete for pergola posts, pergola brackets and bolts, council or engineering costs, delivery and labour.
Prices are Bunnings “from” prices last updated October 2026 and vary by store and over time, so check the product page. Quantities are a guide only. Spans and post sizes depend on your site, height and local rules, so confirm your design with a builder or engineer before you buy.
Save your design to see your materials list
Your materials list opens in your own dashboard, with quantities, Bunnings links and from prices. There you can tick items off as you buy them, email the list to yourself as a PDF and ask a local carpenter to quote the labour.
We email a link to confirm your address. No password and no mailing list.
Email me this list as a PDF
We use your email once to send this list and do not add you to any mailing list.