Gravel Size Chart, Crushed Stone and Rock Sizes
Similar in size to #67 stone, crushed rocks graded #411 are less than 1 inch in diameter with an average size of ¾ inch. However, unlike crushed stone number 67, #411 contains stone dust so that it can be compacted to make a very firm, stable surface or base layer. Some of its uses include: Base for driveways; Base layer under asphalt parking lots
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