This method of shaping creates a slate slabs with a rough edge, particularly suitable for rough fitting of crazy paving to be laid in sand or gravel.
Mark the desired shape with chalk, as close to the edge as possible to make the best use of the slate slab and minimize waste.
Ensure the slab is well-supported and stable.
Use a ball-peen hammer and strike diagonally along the breaking edge towards the underside of the slab. The thicker the slate, the more force it can withstand.
Work gradually inwards towards the chalk line, taking small sections at a time.
You now have a rough edge that gradually tapers inward.
Finally, use the blunt end of the hammer to trim close to the chalk line for a cleaner finish.
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