How to install wire mesh in concrete

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How to install wire mesh in concrete

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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
Working with concrete
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Working with concrete

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.

Tools and Materials


  • Angle grinder
  • Bolt cutters
  • Ear muffs
  • Gloves
  • Joining wire
  • Measuring tape
  • Safety glasses
  • Wire cutter


  • Reinforcing bar chairs
  • Reinforcing steel

More D.I.Y Advice

Health & Safety

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 that 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.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. 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. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
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