40MM Washed Round Gravel
40mm washed round gravel is a clean, smooth stone used for drainage and landscaping. Each piece is about 40mm in size, which is close to 1.5 to 2 inches. The stones are rounded from natural wear and do not have sharp edges.
“Washed” means the gravel has been cleaned to remove dust and fine particles. This helps water flow through the material with ease. Need other sizes? Explore our complete of washed rock.
What is 40MM Washed Round Gravel Used For?
Drainage
This gravel works well where water needs to move through the ground.
- Around weeping tile
- Behind retaining walls
- In drainage trenches
Landscaping
It is often used for visual appeal in outdoor spaces.
- Garden beds
- Tree surrounds
- Decorative borders
Backfill
It is also used for backfill where drainage is important.
- Along foundation walls
- Behind retaining walls
- Around pipes and utilities
It helps move water away and reduces pressure buildup. It does not compact, so it should not be used where strength is required.
Utility areas
It also works in areas that need coverage but not compaction.
- Dog runs
- Around sheds
- Under decks
When not to use it
40mm washed round gravel does not compact. The stones shift under weight and do not lock together.
Avoid using it for:
- Driveway base
- Walkways that need a firm surface
- Areas with heavy equipment
40mm vs smaller gravel
- 40mm gravel allows more water flow and works best for drainage
- Smaller sizes such as 12mm and 20mm sit tighter and give a more stable surface
Coverage and Bag Sizes
| Bag size | Coverage at 2" depth | Coverage at 3" depth |
|---|---|---|
| ½ yard | ~81 sq ft | ~54 sq ft |
| 1 yard | ~162 sq ft | ~108 sq ft |
Product Details
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Size: 40mm (approx. 1.5")
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Type: Round washed rock
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Delivery: Free delivery across Calgary
Why buy from LandscapeSupplyGuys.com
We deliver 40mm washed round gravel bags across Calgary, Airdrie, and Chestermere. Whether you need drainage along a foundation in Calgary, backfill for a wall in Airdrie, or clean stone for a yard project in Chestermere, order the bag size you need and we will bring it to your site. Delivery is included and there is no minimum order.
Order 40MM Washed Round Gravel Bags Today
Choose your bag size and place your order online. Free delivery anywhere in Calgary. If you have questions, call (403) 300-3478 and a landscape specialist will help you choose the right size.
**Please keep in mind that the size of the material can and will vary dramatically from the nominal size listed above. The unit size listed above is the nominal industry standard size and does not represent the exact size of every individual piece of product. Not all individual pieces of material will be of the same size. Please insure you are ordering the correct product once materials are delivered they cannot be picked back up**