# Stucco Calculator

Stucco calculator: bags needed, yards of mix, and cost for scratch, brown, and finish coats. Works as a QUIKRETE stucco calculator and La Habra stucco calculator.

## What this calculates

Traditional stucco is a three-coat cement system that lasts 50-80 years when installed properly. This stucco calculator adds up scratch, brown, and finish coat bags from your wall square footage, lines up the quantities with standard 80-lb QUIKRETE stucco mix and QUIKRETE stucco finish coat bags, and produces a stucco estimate you can hand to a supplier.

## Inputs

- **Wall Area** (sq ft) — min 0 — Stucco calculator square feet of wall (subtract windows and doors)
- **Stucco System** — options: 3-coat traditional (scratch + brown + finish), 1-coat (modern synthetic, 3/8-1/2 inch) — 3-coat is traditional cement stucco. 1-coat is a hybrid cement/synthetic system.
- **Finish Coat Thickness** — options: 1/8 inch (standard), 3/16 inch (heavy texture) — Finish coat for texture (smooth, sand, lace, etc.)
- **Product Brand** — options: QUIKRETE Stucco Mix (base coat + 1201 finish coat), La Habra stucco base + color finish coat, Generic / site-mixed cement stucco
- **Waste Factor** (%) — min 0, max 25 — 10% typical for flat walls, 15% for detailed or textured work

## Outputs

- **Scratch Coat Bags (80 lb)** — First coat, 3/8 inch on lath
- **Brown Coat Bags (80 lb)** — Second coat, 3/8 inch for flatness
- **Finish Coat Bags (80 lb)** — Top coat, 1/8 inch textured
- **Total Bags (80 lb)**
- **Total Stucco Volume** (cu yd) — How to calculate stucco yards for large jobs
- **Estimated Material Cost** — formatted as currency — Stucco estimate at retail bag pricing (~$12 for QUIKRETE stucco Home Depot price)

## Details

## Stucco Calculator Square Feet to Bags

This stucco calculator square feet method works for any 3-coat or 1-coat job:

- **Scratch coat (3/8"):** 1 bag covers ~27 sq ft
- **Brown coat (3/8"):** 1 bag covers ~27 sq ft
- **Finish coat (1/8"):** 1 bag covers ~70 sq ft

For a 1,000 sq ft wall with 3-coat: 37 scratch + 37 brown + 14 finish = 88 bags plus waste.

## QUIKRETE Stucco Calculator

This works as a QUIKRETE stucco calculator because QUIKRETE Base Coat Stucco (product 1139-80) and QUIKRETE Finish Coat Stucco (product 1201) use the same 27 sq ft/bag and 70 sq ft/bag coverage. The QUIKRETE stucco finish coat comes in standard colors (white, pewter, sand) and matches the yield used here.

Bag prices at QUIKRETE stucco Home Depot (2025): base coat $10-12/bag, finish coat $13-16/bag.

## QUIKRETE Stucco Coverage per Bag

QUIKRETE stucco coverage per bag (80-lb bag):
- 3/8 inch scratch or brown coat: 27 sq ft per bag
- 1/8 inch finish coat: 70 sq ft per bag
- 3/16 inch heavy texture finish: 47 sq ft per bag

## La Habra Stucco Calculator

The La Habra stucco calculator uses the same method with slightly higher bag prices (La Habra Base 200 averages $13-15/bag). Coverage is within 5% of QUIKRETE because both products are portland cement-based. Select "La Habra" in the brand dropdown to get matching pricing.

## How to Calculate Stucco Yards

To know how to calculate stucco yards for a truck-mix job (over 3,000 sq ft), multiply bags x 0.6 cu ft/bag and divide by 27 cu ft/yd. A 2,000 sq ft, 3-coat job = 176 bags = 105.6 cu ft = 3.9 cu yd. For any job over 4 cu yd, ready-mix from a plaster plant is usually cheaper than bagged.

## Stucco Estimate Example

Stucco estimate example for a 1,200 sq ft exterior wall (1-story ranch, 3-coat system, no openings):

| Item | Bags | Cost |
|------|------|------|
| Scratch coat (QUIKRETE 1139-80) | 45 | $540 |
| Brown coat (QUIKRETE 1139-80) | 45 | $540 |
| Finish coat (QUIKRETE 1201) | 19 | $285 |
| Lath + accessories | - | $350 |
| **Materials subtotal** | 109 | **$1,715** |
| Labor (pro, 3-coat application) | - | $4,800 |
| **Total stucco estimate** | | **$6,515** |

## Stucco Estimate Calculator vs Pro Bid

A stucco estimate calculator is a starting point. Pro bids for 3-coat stucco on a 1,200 sq ft wall typically land between $6,000 and $9,000 in 2025. Big variables:

- **Lath and scratch coat specialist vs full crew:** affects labor by 20-30%
- **Texture complexity:** smooth finishes require extra finish coat and skilled hand
- **Height and scaffold:** 2-story + full scaffold adds $1,000-2,500
- **Color integral vs color coat:** integral color adds $150-300/cu yd
- **Repairs to existing substrate:** $3-8/sq ft if failing areas

## Coats Explained

- **Scratch coat:** first coat over lath, scored with a trowel to give the next coat tooth
- **Brown coat:** second coat, applied thick and trued to a flat plane
- **Finish coat:** thin top coat that supplies texture and final color

In 1-coat (modern synthetic) systems, there is one thicker cement-fiber coat + finish. These systems are 30-40% faster to install but cost the same in material because the proprietary single bags are more expensive than base-coat bags.

## Frequently Asked Questions

**Q: What does this stucco calculator square feet tool actually compute?**

A: The stucco calculator square feet tool takes your wall area in sq ft and computes bags needed for each coat using published coverage rates. For a 3-coat system: scratch coat at 27 sq ft/bag + brown coat at 27 sq ft/bag + finish coat at 70 sq ft/bag. A 1,000 sq ft wall needs about 88 bags total with 10% waste.

**Q: What is QUIKRETE stucco coverage per bag?**

A: QUIKRETE stucco coverage per bag (80-lb bag): 27 sq ft at 3/8-inch thickness for scratch or brown coat (QUIKRETE 1139-80 Base Coat Stucco). Finish coat (QUIKRETE 1201) covers 70 sq ft per bag at 1/8 inch. This matches the coverage numbers on the bag itself.

**Q: How does this work as a QUIKRETE stucco calculator?**

A: This calculator works as a QUIKRETE stucco calculator when you select QUIKRETE in the brand dropdown. It uses QUIKRETE 1139-80 Base Coat Stucco coverage (27 sq ft per bag) for scratch and brown coats and QUIKRETE 1201 Finish Coat Stucco coverage (70 sq ft per bag) for the top coat. It also uses 2025 QUIKRETE stucco Home Depot retail prices.

**Q: Can you give me a stucco estimate example?**

A: Stucco estimate example for a 1,200 sq ft ranch wall, 3-coat: 45 bags scratch + 45 bags brown + 19 bags finish = 109 bags. At $12/bag base coat and $15/bag finish, materials run about $1,640 plus $350 for lath and accessories. Pro labor at $4/sq ft brings the total stucco estimate to roughly $6,800 in average US markets.

**Q: How to calculate stucco yards for ready-mix?**

A: To calculate stucco yards for a large ready-mix delivery, multiply total bags needed by 0.6 cu ft per bag, then divide by 27 cu ft per cubic yard. A 2,000 sq ft 3-coat job needs about 176 bags = 105.6 cu ft = 3.9 cu yd. Ready-mix is usually cheaper than bagged when you need 4+ cu yards.

**Q: Is a La Habra stucco calculator different from QUIKRETE?**

A: The math is the same. A La Habra stucco calculator uses identical coverage rates (27 sq ft/bag base coat, 70 sq ft/bag finish coat) because both products are portland cement stucco. La Habra Base 200 bags are priced slightly higher (+15-20%) because La Habra includes colored finish coats in one integral mix. Select La Habra in the brand dropdown for matching pricing.

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Source: https://vastcalc.com/calculators/construction/stucco
Category: Construction
Last updated: 2026-04-08