Project Overview

We’ll teach you how to prepare reinforced steel before you pour your concrete. You’ll learn how to cut steel to size with an angle grinder as well as a simple way to tie steel together when you need to overlap it.
Continue to Step-by-step instructions.
Time Required

Done in a Day

Done in a Day

You'll need to set aside a day to comfortably complete this project

Working with concrete
View the video

Quick Tip

If you want your concrete to set properly, don’t add all your water at once. You can always add more later if you need to. Also, remember to work quickly when using concrete on a hot day because it sets much faster.

Step by Step Instructions

1 Lay the reinforced steel in the trench
2 Extend a line of reinforced steel in the trench
  • Step 1. Lay the reinforced steel in the trench

    Lay a line of reinforced steel along the length of the trench. Then put the plastic bar chairs under the steel to raise it slightly off the bottom. The bar chairs should be placed in left and right pairs, every metre or so, the whole way down the trench.
  • Step 2. Extend a line of reinforced steel in the trench

    If your trench is longer than one piece of reinforced steel, lay a second piece to cover the gap. Measure the distance you need to span and use your angle grinder to cut a length of steel that is at least 500mm longer. Then lay the added length in position, prop it up on bar chairs and tie the overlapping sections together with joining wire. Once your whole trench is reinforced, you’re ready to pour your concrete.

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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