Concrete calculator

Curb and gutter

Combined curb-and-gutter volume, ready-mix order and bag equivalent from run length and the two cross-section rectangles.

Reviewed formula · v1.0.0

Project inputs

Enter field measurements. Imperial lengths take feet and inches. Unit conversion happens before the reviewed formula is applied.

Run lengthft + inLength of curb-and-gutter to pourftinCurb heightinReveal of the curb faceCurb widthinWidth of the curb headGutter widthinPan width next to the curbGutter thicknessinThickness of the gutter panWaste factor%Allowance for forms, over-excavation and spill

All values can be refined when you edit the estimate. This tool does not replace field verification or local requirements.

Calculated result

1.75yd³

Ready-mix order

FormulaCONC-CRB-001

V = length × (curb height × curb width + gutter width × gutter thickness) × (1 + waste) → ready-mix order

40 ft³

Net volume

1.48 yd³

Net volume

Bag table · waste in

Counts round up. A cubic yard is 45 of 80 lb, 60 of 60 lb, 72 of 50 lb, 90 of 40 lb.

Bag	Count
40 lb	144
50 lb	116
60 lb	96
80 lb	72

Transparent cost view

Planning rates only. Pick a currency — badges, inputs, and totals follow. Material is a rate. Labour is hours × a planning hourly rate. Equipment and delivery are this-job amounts.

Material ratePlanning · per calculated unit · USDEquipmentPlanning · this job · USDDeliveryPlanning · this job · USDLabour hoursPlanning · this jobLabour ratePlanning · per hour · USDOverhead %%Contingency %%Markup %%Tax %%

Planning defaults are office figures, not a bid. US ready-mix in 2026 often lands around $125–165 per cubic yard delivered; place-and-finish commonly $2–4 per square foot. Replace every rate with a supplier or crew quote before you send the letter.

Indicative FX as of Aug 2026. Planning conversion, not a live bank rate.

Material costUSD 149

Labour (8 h)USD 280

Direct costUSD 539

Overhead + contingencyUSD 53.88

Markup + taxUSD 71.12

Estimated project totalUSD 664

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Embed this calculator

<iframe src="https://construclytic.com/embed/concrete-curb" title="Curb and gutter" width="100%" height="820" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" style="border:1px solid #d7e0da;border-radius:16px;background:#fff;"></iframe>

Paste on a contractor site or blog. The iframe is a planning takeoff, not a bid.

How this calculator works

A transparent curb and gutter takeoff.

Use run length plus the curb head and gutter pan rectangles to estimate combined curb-and-gutter volume, then apply a visible waste allowance before ready-mix rounding.

Worked example. Example: a 40 ft run with a 6×6 in curb head and an 18×6 in gutter pan is 40 ft³ of net concrete. With 8% waste this tool rounds the ready-mix order to 1.75 yd³.

1. Measure the pour length along the face of curb.
2. Enter curb head and gutter pan as two rectangles — this is not a full battered-curb section.
3. Use the rounded ready-mix quantity as the starting point for a plant quote.

Need the broader workflow? Read the concrete planning guide.

Questions

Questions about curb and gutter

Is this a standard curb section?

No. It is two rectangles. Battered faces, spillways and island noses need their own takeoff.

Does this replace a civil detail?

No. Confirm the city or engineer section, reinforcement and jointing before you order.

What is the formula ID?

This calculator publishes formula CONC-CRB-001, version 1.0.0. The ID stays on the result and on the estimate line.

Is this engineering advice?

No. Construclytic is a planning website, not a registered engineering or contracting firm. Field checks, codes and product data still sit with you.

Does Construclytic fetch live supplier prices?

No. Costs use the rate you enter. Construclytic does not fetch live supplier prices.