Gravel Sizes report

Driveway with gravelGravel is loose, fragmented rocks formed by natural weathering and erosion. Usually, gravel is harvested from lakes, oceans, or river beds and has sizes ranging from granule to boulder size. They have a smooth shape and often have roughly round edges or shapes.

In the design of gravel packing sand control, reasonable gravel size is the key to the success of sand control measures. The industrial gravel used in general construction is a mixture of various particle sizes. Larger gravel sizes are beneficial for higher productivity but at the same time result in severe sand intrusion, and smaller gravel sizes are better at retaining sand.

Gravel particle size varies by location and dealer, but in most cases, gravel mixes are roughly the same size, ranging from fines to pea-sized, coin-sized, and even golf ball-sized. Most retailers and outlets use a numerical system to assign a size. The following post shares more details about gravel sizes.

Gravel Size Guide

Gravel and crushed stones are often used in construction, and many people do not know the difference between gravel and crushed stone. Gravel is usually not angular, but it is not as hard as crushed stone. In addition, the gravel is smooth, and its adhesion to the cement slurry is not as good as that of the rough crushed stone, so it is necessary to use crushed stone when there are high requirements on strength and load-bearing in construction projects. Crushed stone has good hardness and strength and has very sharp edges and corners.

Crushed stone and gravel are versatile products that have many uses. When shopping for crushed stone or gravel, it is necessary to know what the different grades or sizes mean. These grades are determined based on the size of the stone after it has been crushed, and size will determine the best applications for the specific stone.

Gravel

Crushed Stone/Gravel size chart

Usually, the small the grade number, the large the gravel particle size, and the larger the number, the finer it is. The smallest is usually #10, #57 sits somewhere in the middle, and the biggest is usually #1. The number system is more often related to what the gravel is intended to be used for rather than its measurements. There are several popular gravel sizes or grades.

Crushed stone gradeSize
#12" to 4" wide
#2
1/2" to 2-2/2" wide
#3
1/2"-2" wide
#5
1" or smaller
#8
3/8"-1/2"
#10
1/8" or smaller
#57
About 3/4"
#67
Less than 3/4"

Crushed Stone/Garvel Grade 1-10

  • #1: The # 1 gravel/crush stone grade is the largest and includes stone between 2-4 inches wide. This material is great for larger jobs or for filling in larger holes.
  • #2: These gravel/crush stones measure 1-1//2 to 2-2/2 inches, and they are not a popular category. Most vendors don't have them.
  • #3: This stone size ranges from 1/2 to 2 inches long. This material is a great choice for railroad and driveway projects.
  • #5: Crushed stone/gravel #5 is 1 inch or smaller in size. This material is perfect for road and paver basees.
  • #8: These stones are between 3/8 and 1/2 inches long. It is the most common stone used for concrete mixes.
  • #10: Crushed stone/gravel #10 is known as screenings or dust. Most use this material to create pavers and concrete blocks.

Specialty Crushed Stone/Gravel

  • #57 – This grade refers to a stone about 3/4 inch long. Most typically use it for concrete mix, landscaping, and drainage.
  • #67 – It is 3/4 inch or smaller in size. #67 is a great material for road and slab base and fill.

Summary

digger-machine handling gravel

Gravel/crush stone sizing systems can be confusing. Luckily most manufacturers and distributors around the world use a numerical coding system. But it would be best if you kept in mind that this number coding system is not always accurate in different regions or countries. Those with strict size requirements should generally discuss directly with the distributor or manufacturer for specific information on available products and specifications.


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