Gravel Size Chart, Crushed Stone And Rock Sizes, Uses, Grades
Backfilling the base of retaining walls; Base layer under brick, concrete or stone pavers; Gravel for driveways and walkways; Base for pipework and culverts; Drainage work; Crushed stone #411: Less than 1" Wide. Similar in size to #67 stone, crushed rocks graded #411 are less than 1 inch in diameter with an average size of ¾ inch.
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