#2 ( 2 1/2′′ ) crushed stone is a combination of assorted sized material that ranges from 1 1/2′′ through 2 1/2′′ which has been crushed and compacted in size, then processed through a square screen 3′′ in size.
What is #2 gravel?
This primarily 1′′ crushed, washed gravel with a top size of 1-1/2′′ is often used for drainage around perforated pipe, under concrete slabs, and as a coarse driveway topping for soft, very muddy driveways.
What are stone sizes?
- Red Rock or Brick chips – Sizes range from 3/4′′ to 1 1/2′′. ...
- Crushed gravel – Sizes range from 1/4′′ to 3/4′′. ...
- River rock – Sizes range from 3/8′′ to 2 1/2′′. ...
- White marble – Size range from 1/4′′ to 1/2′′. ...
- Crushed limestone – Sizes range from 3/8′′ to 3′′.
What size is number 3 gravel?
A popular choice for the bottom layer is #3 stone, which ranges in size from one to two inches in diameter . Also called “clean stone,” this base gravel is made from machine-crushed stone and is composed of irregular rock fragments.
What size is number 3 Rock?
Size #3, for instance, is usually 1.5 to 2 inches (about 3.8 to 5 cm) in diameter , and is often best for residential draining projects; #8, which is usually 3/8 to 1/2 an inch (1 to 1.2 cm) across, is frequently used in asphalt and concrete mixtures.
What is number 7 gravel?
Granite Washed Stone #7. Gray in color, 1/2-3/4 inch in size average, drainage gravel, use for top layer for driveways after good base of crush & run. “USES: It is commonly used for drainage purposes, septic tank lines, driveways, or parking pads.
What are the different sizes of gravel?
In the Udden-Wentworth scale gravel is categorized into granular gravel (2–4 mm or 0.079–0.157 in) and pebble gravel (4–64 mm or 0.2–2.5 in). ISO 14688 grades gravels as fine, medium, and coarse, with ranges 2–6.3 mm to 20–63 mm.
What size rock is best for a driveway?
A commonly used gravel size for driveway base layers is #3 gravel . This rock is generally 1-2 inches in diameter and does double duty by establishing a solid, reliable foundation and providing adequate drainage; both critical factors in driveway construction.
What is Type 3 stone?
Type 3 sub-base is a pure crushed granite, limestone or clean crushed concrete . Usually a 40mm product that has been screened to create a reduced fines aggregate. This product is fully certified according to the Specification for Highway Works. This is the most widely used sub-base where less fines are required.
What size is number 4 stone?
#4 Limestone Gravel Stone is a crushed angular Limestone aggregate. Sizes of #4 Stone range from 1 1/2′′ to 2 1/2′′.
What is the difference between #57 stone and #67 stone?
#57 – This category refers to a stone that is about 3/4 inch long . Most typically use it for concrete mix, landscaping, and drainage. #67 – Crushed stone #67 includes stone that is 3/4 inch or smaller in size. #67 is a great material for road and slab base as well as fill.
What size is #67 gravel?
67 stone is a limestone aggregate averaging 1/2′′ in size . Our 67 stone is graded and has no fines and very little stone dust, meaning it will have minimal compaction. Description: A 1/2” crushed limestone aggregate.
What size is #57 gravel?
Stones in AASHTO #57 blend are detected with a 1.5-inch sieve, which is why the #57 stone size is around 1 to 1.5 inches . Its size makes it useful for weight-bearing applications such as foundation beds and driveways.
What size does River rock come in?
River rocks are available in a wide range of sizes, from very small (approximately 3/8 inches in diameter) to 5 inches . Tip: Explore your local stone yard to get ideas and pick up samples to bring home. The colors are also variable, mainly earth tones, so they complement most existing color pallets.
What is the difference between 2A and 2B stone?
The only difference between 2B and 2A is that the 2A has some Limestone dust (10) mixed in with the stone , and tends to compact better. ... For driveways with mud problems, consider putting a base of #3 or #4 Limestones with 2B or 2A Limestone on top.
How deep should rock be for landscaping?
For most purposes, 2 inches (or 50mm) of landscaping rock is adequate. If you use a material that is larger than this, then the depth will be the same size as the rocks themselves. That is, you will want one layer of 3 to 8 inches (75 to 200mm) of rocks.
