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Walkway intentHow much concrete do I need for a walkway?
Walkways are narrow slabs, so the estimate is mainly length multiplied by width and thickness, with a small allowance for waste.
Best for
- Garden paths
- Side walks
- Narrow slabs
Worked example
A 12 m by 1.2 m walkway at 0.1 m thickness
Walkways are easy to price once you convert the full shape into cubic meters and add a modest waste allowance.
Example
12 m × 1.2 m × 0.1 m = 1.44 m3. With 7 percent waste, the adjusted order volume is 1.54 m3.
Formula
Volume = length × width × thickness
Adjusted volume = volume × (1 + waste / 100)
Planning notes
Walkway planning tips
Use consistent width
If the path changes width, split it into sections and total them separately.
Watch the edges
Narrow paths often lose material at the sides and around joints.
Round up slightly
A small allowance helps cover the extra material used during finishing.
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