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How to build a deck

A completed backyard deck

A new backyard deck, step by step

The process for realising the deck of your dreams can seem daunting, but we can take you through each step.

Step 1: How to plan out your deck

Before getting started, there are a few things to bear in mind, but we're here to help: check out our list on key things to consider.

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A completed deck attached to a brick house

Step 2: How to set out a deck

Once you’ve planned out your deck, the next step is to set it out. Here’s how.

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Deck set out using hurdles, string and timber.

Step 3: How to install stumps

The key to a durable and long-lasting deck lies in the care and attention given to assembling its substructure.

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Stumps fixed into the backyard.

Step 4: How to install bearers

Bearers carry the weight of the entire deck, so it’s important to install them correctly.

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Finished Bearer all marked out and ready

Step 5: How to install joists

Joists make up the deck frame, and they are also the key to the overall success of your D.I.Y. project.

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A wooden subfloor for a house

Step 6: How to lay decking

Your deck’s surface will be the most visible part of your deck, so it’s important to get it right.

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Screening attached to deck. 

Step 7: How to add a step to your deck

If there’s a big gap between your back door and your backyard, you may want to add a step to your deck.

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A completed step for a deck

Inspiration from the Bunnings Workshop community

Low-level deck with picture framing

Bunnings Workshop community member Jithesh built this impressive 7m x 4m Merbau deck over a concrete slab in just three weekends.
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A decking with an undercover area.