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Alberta Transportation Specification Sand, Gravel and Rock

Alberta Transportation Specification sand, gravel, and rock are separated into designations and classes. The designation identifies which product can be used in the construction of highways and related infrastructure. The class determines the size of the product to be used. A copy of Alberta Transportation Specification Sand, Gravel, and Rock is available on our Aggregates page.

More information about gradations and sieves can be found on our Aggregate Sieves page.

Designation 2-20 | Des. 2-20

20mm ( ¾” ) Base Course Aggregate

Designation 2-25 | Des. 2-25

25mm ( 1″ ) Base Course Aggregate

Designation 2-40 | Des. 2-40

40mm ( 1¼” ) Base Course Aggregate

Designation 4-20 | Des. 4-20

20mm ( ¾” ) Gravel Surfacing Aggregate

Designation 4-25 | Des. 4-25

25mm ( 1″ ) Gravel Surfacing Aggregate
Early Morning Sunrise | FT Aggregates

Designation 4-40 | Des. 4-40

40mm ( 1¼” ) Gravel Surfacing Aggregate

Designation 5-10 | Des. 5-10

Sanding Material

Designation 6-80 | Des. 6-80

80mm Pit Run

Looking For something else?

Link to City of Edmonton Specification Products Page
City of Edmonton Specification Products
ROCKS Traction-Aid
Decorative Rock
Landscape Supplies