How Much Concrete for a 6x75 Sidewalk?
How much concrete for a 6x75 sidewalk: about 5.56 cubic yards at the standard 4-inch thickness. The walk covers 450 square feet, so each extra inch of depth adds about 1.39 yards.
Concrete calculator →Step-by-step
- Area: 6 × 75 = 450 sq ft.
- Volume: 450 × (4 ÷ 12) = 150.0 cu ft.
- Yards: ÷ 27 = 5.56 yd³.
- Bags instead: 250 bags of 80 lb mix (334 of 60 lb).
Related: How Much Pea Gravel for a 6x75 Walkway?
Concrete by thickness
| Thickness | Cubic feet | Cubic yards | Yards +10% | 80 lb bags | 60 lb bags |
|---|---|---|---|---|---|
| 4 in | 150.0 | 5.56 | 6.11 | 250 | 334 |
| 5 in | 187.5 | 6.94 | 7.64 | 313 | 417 |
| 6 in | 225.0 | 8.33 | 9.17 | 375 | 500 |
How thick a sidewalk should be
Most residential sidewalks are 4 inches thick on a compacted gravel base. Thicken any section that a car, mower or delivery cart will roll over, especially where the walk meets the drive.
Related: How Much Sand for a 6x75 Walkway?
Joints along the walk
Walks are usually jointed every 4 to 6 feet, often at a spacing equal to the walk width, so a 6-foot walk gets a joint about every 6 feet: roughly 11 joints over 75 feet. Square panels crack less than long, thin ones.
Truck, bags or a short load
This is past the point where bags are practical; call a ready-mix plant. If the truck cannot reach the far end of the walk, plan for wheelbarrows or a chute extension; see how far a concrete chute reaches.
Slope and finish
Give the walk a slight cross slope, around 1/4 inch per foot, so water sheds to one side. A light broom finish across the walk gives grip when it is wet.
Questions people ask
How many yards of concrete for a 6x75 sidewalk?
About 5.56 cubic yards at 4 inches thick.
How many bags for a 6x75 sidewalk?
About 250 bags of 80 lb concrete at 4 inches.
How thick should a sidewalk be?
Four inches for foot traffic, 6 inches where vehicles cross.
How far apart should sidewalk joints be?
About every 6 feet for a 6-foot-wide walk, keeping panels close to square.
How many 80 lb bags make a cubic yard?
About 45. Each 80 lb bag yields roughly 0.6 cubic feet, and a cubic yard is 27 cubic feet.
Related guides
- Concrete Sidewalk Thickness for Walks and Crossings
- How Much Concrete for a Sidewalk? Yards per Foot
- How Much Area Does a Yard of Concrete Cover?
- How Many Bags of Concrete in a Yard? 40, 60, 80 lb
- Gravel Base Under a Concrete Slab: Depth and Tons
- How Many Yards in a Concrete Truck? Mixer Sizes
- Concrete Short Load Fee: What It Is and How to Cut It
- 60 lb vs 80 lb Concrete Bags: Yield, Count, and Cost
- Rebar vs Wire Mesh in a Slab: Which One to Use
- How Much Concrete for a 6x50 Sidewalk?
- How Much Concrete for a 6x60 Sidewalk?
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