SAND, GRAVEL TRIPLE MIX Chapman Builders Supplies Ltd.
3/4 Crusher Run. If you are creating a base deeper than 4" you should use crusher run. It is a high strength material that packs almost as good as concrete. It is used under driveways and heavily travelled walkways. 'A' Gravel. A Gravel (Granular A) is added to portland cement to make concrete. This is commonly used for fence post cement.