lime technology Sustainable building innovation Limetec Hydraulic Lime Mortars - Coverage 60 bricks = 1 square metre - stretcher bond [single skin] 80 bricks = 1 square metre - Flemish bond 1000 bricks = 16.5 square metres = 0.3 cubic metres (Quantities based on 10mm joints) Brick course up to 1.5m high per day are possible 25kg bag = 2.8square metres @ 10mm joint width Note joint depth for re-pointing = x 2 width ie: 10mm joint = 20mm 1 tonne = 460 standard 100 x 440 x 215 blocks - 41.5m2 1 tonne = 335 standard 140 x 440 x 215 blocks - 32m2 1 tonne = 220 standard 215 x 440 x 215 blocks - 20m2 100mm blocks laid flat 1 tonne = 265 blocks - 10m2 140mm blocks laid flat: 1 tonne = 250 blocks - 15m2 Lime products made simple Unit 126, Milton Park, Abingdon