How to build a deck

A deck is the perfect way to extend your living area to the outdoors and improve the value of your home. Find out how you can build your own deck that you will enjoy for years to come.

Step 1: Make a Plan

Before you reach for a hammer there’s a few things you need to consider before building your new deck. Seeking council approval, checking for underground cables and pipes and deciding on the overall design of your deck are just some of the things you need to do before you start building. 

Watch Planning to Build a Deck

“Person cutting a check-out in the wall plate”

Step 2: Measure and Set Out Your Deck

With the planning phase complete, it’s time to set out your deck. This phase is crucial – get your measurements wrong and your deck could end in disaster. Find out how to measure and mark out the height of your deck and ensure that it’s square. 

Watch How To Set Out a Deck

“Install other bearers”

Step 3: Install the Stumps and Bearers

The building phase begins as we show you how to build a strong foundation for your new deck, starting with the stumps and bearers. 

Watch How To Install Bearers and Stumps for a Deck

Install joists for deck

Step 4: Install the Joists

With the stumps and bearers in place, the next step in building your deck is to install the joists; these are the beams that will support the decking boards. 

Watch How To Install Joists for a Deck

“Person securing decking with a fastener”

Step 5: Lay the Decking

Your deck’s frame is now complete, which means it’s time for the final step – laying the decking boards. 

Watch How To Lay Decking

“deck with lighting”

More Ideas to Make Your Outdoors Great

Building a deck is the first step in creating a fantastic outdoor space for your home, find out what else you can do to create the perfect entertaining area. Or if you’ve only got a small space to work with, check out these great ideas for small spaces.

Get council approval forms 01:00

Decking Planning to build a deck Good preparation is the secret to any successful D.I.Y. project. We’ll take you through all the stages involved in getting ready to build a deck.

Man bolting temporary timber guides in place 04:24

Decking How to set out a deck Before you can build a deck, it’s important to do the groundwork. We’ll show you how to measure and run string lines to mark the height of your deck and position of your stumps.

Install other bearers 03:47

Decking How to install bearers and stumps for a deck To install an outdoor deck, you’ll need a solid foundation. We’ll show you how to sink the stumps and attach the bearers for your foundation.

Person cutting a check-out in the wall plate 02:57

Decking How to install joists for a deck Installing the joists for your decking is an important step in the project. We’ll show you how to install the joists that will form a strong foundation for your deck.

lay decking 02:46

Decking How to lay decking You can make the most of your outdoors and add real value to your home with a deck. We’ll take you through the steps involved in laying merbau decking.

Pre-drill holes to attach decking 05:17

Decking How to build modular decking Find out how to build your own outdoor living area with modular decking

Deck lights connected to power 02:07

Lighting How to install deck lights Turn your deck into a space you can use night and day. This video will show you how to install lights into your decking.

Person cleaning the deck with high pressure water cleaner 02:46

Decking How to choose and maintain decking for a beach house An outdoor deck is a great spot for entertaining. We’ll show you how to choose the right materials and finishing, and give you some maintenance tips.

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions which came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings team member.

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