20 mm crushed gravel is a mixture of sand and rock that is best used as a packing gravel for underneath asphalt, concrete, driveways, garage pads and paving stones. It is also known as 3/4" crush ...
75 mm crushed gravel is a sand and rock mixture that is used for filling foundations less than 2 feet in depth, then topped with 20 mm crushed gravel. It is also known as 3" minus.
3 mm washed sand is a fine mortar sand that can be used for brick laying, masonry work, stucco work, for filling the joints in and around paving stones, and also as play sand. Other names include g...