How to remove a concrete slab

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How to remove a concrete slab

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Project Overview

It might seem like a big job, but removing a concrete slab is something you can do yourself. All you need is some careful planning, the right tools and a little bit of know-how. We’ll show you how to break up the slab into smaller pieces, cut through steel reinforcements, and then remove and dispose of the concrete properly. Before you start, speak to your local council to make sure there are no wires or cables under the concrete before working and always wear your safety gear.

Continue to step-by-step instructions

Step by Step Instructions

1 Break up the concrete into smaller pieces
2 Cut away any steel reinforcements
3 Remove and dispose of your concrete
  • Step 1. Break up the concrete into smaller pieces

    Use the jackhammer to break up the concrete slab into smaller pieces. You can also use a sledgehammer and crow bar. Always start in a corner, and work your way back and across in a grid pattern. This will make managing all the concrete chunks a lot easier. Make sure that you’re standing on a solid surface so that you have good balance while using the jackhammer. Also, remember to take regular breaks.

  • Step 2. Cut away any steel reinforcements

    As you chip and smash your way through the concrete, you may find steel reinforcing inside of it. To remove this, grab your angle grinder and carefully cut through the metal. Take care when removing your steel off-cuts because these can be quite sharp.

  • Step 3. Remove and dispose of your concrete

    Pick up all the concrete chunks and steel off-cuts, put them in the wheelbarrow and then dump them in your skip bin. Take care lifting and throwing the concrete chunks because they can be quite heavy. Also, avoid overloading your wheelbarrow. Then use your dustpan and broom to clear away smaller concrete pieces and dust.

Tools and Materials

Tools

  • Angle grinder
  • Broom
  • Crow bar
  • Ear muffs
  • Jackhammer
  • Safety glasses
  • Safety gloves
  • Shovel
  • Skip bin
  • Sledge hammer
  • Steel toe boots
  • Wheelbarrow

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 Test.
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