Walks
Concrete Sidewalk Cost Calculator
A walk is a long, narrow slab. Width and thickness matter more than people expect once the run gets past the front door.
Your region
Feet, inches, cubic yards, and 40–80 lb bags
Concrete Calculator
Example measurements — replace them with yours.
Common sizes
Most orders add 5–10% for spillage, uneven ground, and the last bit left in the chute.
Cost, truck size, and concrete weight
Leave a price blank to skip that estimate. Use the number your supplier quoted.
This job
Add each pour — slab, piers, steps — and Concrete Calculator totals them.
How to use a concrete sidewalk cost calculator
A walk is a long, narrow slab. Width and thickness matter as soon as the run passes the front door. A 4 foot walk at 4 inches uses one cubic yard for every 81 square feet — a little over 20 feet of length. Measure the path you will form, including flares that widen at the driveway, as separate rectangles if the width changes.
City walks sometimes follow a public detail that is thicker than a backyard path. Use the permitted thickness when the walk sits in a right-of-way. Private garden paths can stay at 4 inches on a compacted base if that matches local practice.
Worked example with the concrete sidewalk cost calculator
40 × 4 × 0.333 = 53.3 ft³ = 1.98 yd³ neat. With 10% ≈ 2.17 → order 2.25 yd³. At 80 lb bags that is about 89 bags neat — usually a short truck with the driveway apron if you pour them together.
- Per 10 ft of 4 ft × 4 in walk ≈ 0.49 yd³
- Per 10 ft of 5 ft × 4 in walk ≈ 0.62 yd³
Aprons, landings, and joints
Driveway aprons and porch landings are often poured with the walk. Add them as extra pours so the plant ticket matches the whole day’s work. Control joints do not change volume; they change where the walk cracks — plan joint spacing while you still have the tape out.
Common mistakes
Measuring curb-to-curb without the driveway flare under-orders if you pour them together.
- Ignoring public-ROW thickness when the permit spells it out.
- Ordering bags for a 2 yard walk without a mixing plan.
Bags, yards, or a truck?
A 2 yard walk is usually a short truck plus a short-load question. Bags work for a short porch connector under about a yard.
The formula Concrete Calculator uses
Length × width × thickness in feet, ÷ 27 for yards.
Who this is for
Homeowners replacing a walk.
Builders pouring apron and walk in one go.
Walkway length tables
For a 4 ft wide × 4 in walk, each 20 ft of length is about 0.99 yd³ neat — call it a yard before waste. A 5 ft public walk at the same thickness uses about 1.23 yd³ per 20 ft. Add flares and landings as separate rectangles so the plant ticket matches the day’s forming.
Concrete sidewalk cost calculator searches need your local installed rate. Enter $/ft² installed or $/yd material — Concrete Calculator will not invent a city average.
Related calculators and guides
Open the pages that match the next question on the job — volume is only the first number.
Frequently asked questions
How much concrete for a sidewalk?
Multiply L×W×T in feet ÷ 27. A 40×4×4 in walk is about 1.98 yd³ neat.
What thickness is a sidewalk?
Often 4 inches residentially. Public walks may require more — check the permit.
Should I include the driveway apron?
If you pour it with the walk, measure it as a second rectangle and add the pour.
How much per 10 feet?
About 0.49 yd³ for a 4 ft wide × 4 in walk before waste.