We manufacture retaining wall blocks in half thickness Our blocks save space and are still ideal for retaining soil stone in bays or around houses where an area needs retaining We produce 1800 x 300 x300 1600 x 300 x300 1200 x 300 x 300 900 x 300 x 300 600 x 600 x 600 Or they can be 400 mm thick or 500mm thick which ever works with your site Please use contact seller for info before you buy This listing is for 600 x 300 x300 block not including vat or delivery which we can arrange on our transport