DIY Retaining Wall Ideas

Scrap lengths of rebar or wooden dowels 8-foot, 2x4 lumber 4-foot-long level Base material, concrete blocks, sand, crushed gravel Torpedo level, rubber mallet, construction adhesive, perforated drainpipe Hand tamper; a gas-powered tamper is optional Editor’s Tip: To cut, score a line around the block with a brick chisel, then tap until the block splits. If you need to make many cuts, or cut custom capstones, rent a masonry saw from a tool-rental shop.