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How to set up post supports for a carport

Overview

The first thing you need to do when building a carport is create the supports. Follow this step-by-step guide and we'll show you how to mark out and install them yourself.

Steps

1Dig holes for posts

Mark out your holes and dig to the plans and specifications of your carport. This can be marked out with stringlines. Before you dig, make sure there isn't any power, gas or water pipes under where you're working.
Person digging a hole.

2Put in post supports

Put some timber supports over the holes for your post supports. Screw the support loosely into the timber so it's held up out of the bottom of the hole and the concrete can go around it.
Person screwing a post into piece of timber.

3Fill your hole up with concrete

Finally, fill up your holes with the concrete. Square off the post supports while the concrete is still wet. Use your stringlines from Step 1 to make sure that your supports are all level. After the concrete dries, remove the timber supports and you're ready to install your beams and posts.
Person filling hole with concrete.
Health & Safety

Asbestos, lead-based paints and copper chromium arsenic (CCA) treated timber are health hazards you need to look out for when renovating older homes. These substances can easily be disturbed when renovating and exposure to them can cause a range of life-threatening diseases and conditions including cancer. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page.

When following our advice in our D.I.Y. videos, make sure you use all equipment, including PPE, safely by following the manufacturer’s instructions. Check that the equipment is suitable for the task and that PPE fits properly. If you are unsure, hire an expert to do the job or talk to a Bunnings Team Member.