Understanding Crushed Stone Grades

Understanding Crushed Stone Grades

Crushed stone is a versatile product that has many uses, from base material for pavers to decorating landscapes. If you have dealt with crushed stone in the past, you likely noticed that there are different grades (sizes) associated with it. These grades are determined based on the size of the stone after it has been crushed, and they let you know the best applications for the specific stone. It is important to note that some gradations will have a range of stone sizes in that particular gradation.  For example, a CA11 or CA7 (generally ¾”) gradation may include individual stone sizes of 1” down to ½”.

When you’re shopping for crushed stone, it’s handy to know what the different grades mean. The information below provides a general overview to help you choose the right material for your project.

#1
Crushed stone #1 is the largest of the crushed stone grades and includes stone that is between 2-4 inches. This materials is great for larger jobs or for filling in larger holes.

#3
Crushed stone #3 includes stone between 1/2 and 2 inches. This material is a great choice for railroad projects and those that require drainage.

#5
Crushed stone #5 includes stone that is 1 inch or smaller in size. This material is perfect for road and paver base.

#8
Crushed stone #8 includes stone between 3/8” and ½”. This is the most common stone used for concrete mixes.

#10
Crushed stone #10 is known as screenings or dust. This material is used to create pavers and concrete blocks.

#57
Crushed stone #57 refers to stone that is about ¾”. This is typically used for concrete mix, landscaping and drainage.

#67
Crushed stone #67 includes stone that is ¾” or smaller in size. This is a great material for road and slab base as well as fill.

If you’re interested in a specific type of crushed stone for your project, contact Ozinga’s materials experts today to fulfill your needs.

Contact a Materials Specialist