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How Much Concrete for a 5x60 Sidewalk?

How much concrete for a 5x60 sidewalk: about 3.70 cubic yards at the standard 4-inch thickness. The walk covers 300 square feet, so each extra inch of depth adds about 0.93 yards.

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Step-by-step

  1. Area: 5 × 60 = 300 sq ft.
  2. Volume: 300 × (4 ÷ 12) = 100.0 cu ft.
  3. Yards: ÷ 27 = 3.70 yd³.
  4. Bags instead: 167 bags of 80 lb mix (223 of 60 lb).

Concrete by thickness

ThicknessCubic feetCubic yardsYards +10%80 lb bags60 lb bags
4 in100.03.704.07167223
5 in125.04.635.09209278
6 in150.05.566.11250334

Thickness for walks

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.

Joints along the walk

Tool a control joint about every 5 feet, matching the width, which gives roughly 11 joints along this walk. Add an isolation joint where the walk meets the house, steps or a driveway so the slabs can move independently.

How to buy it

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 5x60 sidewalk?

About 3.70 cubic yards at 4 inches thick.

How many bags for a 5x60 sidewalk?

About 167 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 5 feet for a 5-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.

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