Levelling Shim 3mm Thick
The Wallbarn Levelling shims allow you to alter the level to get a flat surface for your paving.
The Wallbarn shims have been made to fit of all fixed height support pads and will help avoid the slabs rocking.
All shims can be snapped apart into quarters or half shape, where only one corner needs extra support.
The Plastic shims for paving come in sizes: 1mm, 2mm and 3mm.