Sydney Concrete Block Company

How many concrete blocks should I allow for my walls?

The regular block size for walls - Standard 20.01 or 400 x 200 x 200 - have an actual face of 390 x 190 mm. This equals 12.5 units per 1 square metre.

How much concrete should I allow to core fill a concrete block wall?

To fill 200 mm bond beams allow .013m3 of concrete per lineal metre of beam.

To core fill 150mm ‘H’ blocks allow .65m3 of concrete per 100 blocks.

To core fill 200mm standard 10.01 blocks allow .8m3 of concrete per 100 blocks.

To core fill 200mm ‘H’ blocks allow .84m3 of concrete per 100 blocks.

To core fill 300mm blocks allow 1.1m3 of concrete per 100 blocks.

To core fill 300mm ‘H’ blocks allow 1.32m3 of concrete per 100 blocks.