#10 Description (Smallest)
Also called screenings. 1/8 of inch and smaller. Similar to a coarse sand. Used as a base material for paving stones or bricks. Also excellent for mixing with larger stones to help pack them in and prevent them from moving. Workable by hand and very easily compacted but will not work well in muddy areas. Available in limestone.
#8 Description
Pea sized stones ¼ to ½ inch in size. Easily worked by hand but does not compact very well. Available in limestone, and washed gravel.
#67 Description
An uncommon size of stone ranging from ¼ to ¾ inch. Workable by hand but not many materials are available in this size. Available in lucky stones.
#57 Description
The most common size material ranging from ¾ to 1 inch in size. Easily described as nickel to quarter size. Workable by hand. Excellent for topdressing areas because it can be comfortably walked or driven on. Available in limestone, and washed river gravel.
#411 Description
This is a mixture of #57 and #10. It will compact very well and therefore is an excellent base for paving stones, bricks, and retaining walls. It is excellent for filling holes in paved surfaces. It is workable by hand but should not be used in muddy areas. Available in limestone.
#4 Description
1 to 2 ½ inch sized stones or roughly golf ball to egg size material. Generally used as a base material and topdressed with smaller stones or used as a decorative cover material that will not be walked on. Difficult to work by hand. Available in limestone.
#34 Description
Also called #467, a mixture of #3’s and #4’s. Same size range as the pure #4’s. Difficult to work by hand and generally used as a decorative stone. Available in washed river gravel.
#304 Description
This is a mixture of #4 and #10. It will compact very well and is an excellent base in muddy areas. It works very well for filling holes over 6” deep in paved surfaces. It is not a good base for paving stones or bricks because it will not give a smooth surface. Available in limestone.
#1 Description (Largest)
These are larger stones ranging from 2 ½ to 4 inches, or egg to softball size. They are not workable by hand, except as individual stones (they cannot be shoveled by hand). They do not pack down very well unless mixed with or topdressed with smaller stones. Sometimes sold as a mixture of # 1 and # 2 but dimensions are the same. Available in limestone, and washed river gravel. The washed river gravel contains a lot of sand in this size.
