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How Much Concrete for a 5x200 Sidewalk?

A sidewalk 5 feet wide and 200 feet long is 1,000 square feet. Poured 4 inches thick, that is 12.35 cubic yards. How much concrete for a 5x200 sidewalk with a 10 percent allowance: about 13.58 yards.

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Step-by-step

  1. Area: 5 × 200 = 1,000 sq ft.
  2. Volume: 1,000 × (4 ÷ 12) = 333.3 cu ft.
  3. Yards: ÷ 27 = 12.35 yd³.
  4. Bags instead: 556 bags of 80 lb mix (741 of 60 lb).

Concrete by thickness

ThicknessCubic feetCubic yardsYards +10%80 lb bags60 lb bags
4 in333.312.3513.58556741
5 in416.715.4316.98695926
6 in500.018.5220.378341,112

How thick a sidewalk should be

Four inches is the usual thickness for a residential walk that only sees foot traffic. Where the walk crosses a driveway, pour that section at 6 inches, since car tires will cross it.

Joints along the walk

Tool a control joint about every 5 feet, matching the width, which gives roughly 39 joints along this walk. Add an isolation joint where the walk meets the house, steps or a driveway so the slabs can move independently.

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

Slope the walk a little to one side for drainage and finish it with a broom for traction. Round the edges with an edging tool so they chip less.

Questions people ask

How many yards of concrete for a 5x200 sidewalk?

About 12.35 cubic yards at 4 inches thick.

How many bags for a 5x200 sidewalk?

About 556 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 much does a cubic yard of concrete weigh?

Roughly 4,000 pounds, or about 2 tons, for normal-weight concrete.

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