RRenoCalc
HomeConcreteConcrete Steps Calculator

Concrete Steps Calculator

Calculate concrete for entry stoops, exterior stairs, and step-style features. Set rise, run, width, and step count — the calculator handles the stacked-block math.

You'll need
0.52 cu yd · 24 bags
Cost
$144$240
Project details
What are you pouring?
Steps dimensions
RiseRun× width × N steps
Quantity

e.g. 8 fence post holes, 3 footings

How you'll buy it

Leave blank to use estimate

Default estimate: $130–$180/yd. Most suppliers have a 1–3 yard minimum.

Reinforcement & site prep
Labor

Cost breakdown

Showing bag pricing (80 lb bags).
80 lb bags · 24 bags$144 – $240
Total project cost$144 – $240
💡 Comparison: 24 80-lb bags would cost $144$240; ready-mix (1.00 yd) would cost $130$180.

Shopping list

Everything you need for this pour.
  • 80 lb concrete mix bags24
  • Concrete mixing tub or wheelbarrow1
  • Mason hoe or mixing tool1
  • Gloves, eye protection, knee pads1 set
Ready to pour?
Pick up Quikrete or Sakrete bags at Home Depot.
Shop now →

Math breakdown

Step-by-step from your inputs.
Steps volume · 3 steps × 4 ft × (rise + run)12.83 cu ft each
With 10% waste factor14.12 cu ft
Cubic yards · cu ft ÷ 270.52 cu yd
Estimated weight (wet)2,047 lbs
80 lb bags · ÷ 0.6 cu ft per bag24 bags

Pro tips

7 inches rise, 11 inches run. Standard residential code: 7-inch rise per step, 11-inch run (tread depth). Steeper or shallower is allowed but uncomfortable. Outside steps can go up to 7.5-inch rise but never higher.

Form with 2×8 boards. Build step forms from 2×8 lumber sloped slightly forward (1/4 inch per foot) for drainage. Skim with form release oil so concrete pulls cleanly.

Reinforce with rebar. Each step gets 2 horizontal #4 rebar bars. Tie them into the slab below. Steps without rebar crack along the front edges within 5 years.

Frequently asked questions

How much concrete for 3 entry steps?
3 steps at 7" rise × 11" run × 4 ft wide: roughly 0.7 cubic yards (about 30 × 80 lb bags). The calculator gives exact based on your dimensions.
Steps separately or with the stoop?
Pour stoop and steps in one continuous pour for best strength. If you must do separately, install rebar dowels at the joint to tie them together.
How wide should outdoor steps be?
Minimum 3 feet for residential single-track. 4 feet is more comfortable for two people side-by-side. Wider than 4 feet looks more like a stoop or platform.
Anti-slip texture on concrete steps?
Broom finish (drag a wide broom across wet concrete) is standard and free. Or apply non-slip topcoat after curing. Smooth-troweled outdoor steps become deadly when wet — don't do it.

Related calculators

Disclaimer. This calculator provides estimates for planning purposes. Actual material quantities and costs may vary based on site conditions, material availability, and local pricing.