Solve backwards
How much wall will my bags of stucco cover?
- 10 bagsThe example worked below
- Stucco CalculatorEvery figure is its own
You have
How much stucco mix?
Worked by the Stucco Calculator at the settings below.
The settings it uses
- Average Wall Height
- 10 ft
- Number of Doors
- 0
- Number of Windows
- 0
What it will do
1,000 sq ft of wall
92.9 m²
One wall. Enough for 100 ft of wall 10 ft high.
Or several. Less than one wall of the size the Stucco Calculator opens on (130 ft of wall 10 ft high).
Check it forwards
- Total Wall Length (perimeter)
- 100 ft
- It asks for
- 10 bags
- You have
- 10 bags
The Stucco Calculator asks for 10 bags at that size, and 11 bags one step larger.
If you had more, or less
Around your amount
Each worked by the Stucco Calculator at the same settings.
Half
5 bags
500 sq ft
50 ft of wall 10 ft high
Yours
10 bags
1,000 sq ft
100 ft of wall 10 ft high
Half as much again
15 bags
1,500 sq ft
150 ft of wall 10 ft high
Double
20 bags
2,000 sq ft
200 ft of wall 10 ft high
Common amounts
What each amount of stucco mix covers
The sizes it is usually sold in, each worked by the Stucco Calculator at the settings above.
| You have | It covers | As one wall | Average walls |
|---|---|---|---|
| 5 bags | 500 sq ft(46.5 m²) | 50 ft of wall 10 ft high | under 1 |
| 10 bags | 1,000 sq ft(92.9 m²) | 100 ft of wall 10 ft high | under 1 |
| 20 bags | 2,000 sq ft(186 m²) | 200 ft of wall 10 ft high | 1 |
| 40 bags | 4,000 sq ft(372 m²) | 400 ft of wall 10 ft high | 3 |
About a hundred square feet a bag
An 80 lb (36 kg) bag of stucco mix commonly covers about 100 square feet, 9.3 m², at standard application thickness — the figure the calculator uses, with the reminder that each product's own coverage chart is the one to confirm against. A thicker coat or a heavy texture takes the answer down in proportion.
Nothing is added for waste
The calculator divides the net area by the coverage and rounds up to whole bags, with no allowance for mix that bounces off the wall, stiffens on the board or stays in the mixer and hose. So the wall here is what the bags cover if nothing is lost — keep one back on a job of any size.
Texture and substrate take their share
The same 100 square feet per bag is assumed over a damp, smooth base as over dry open masonry that drinks the mix, and for a tight sand finish as for a deep dash. Weep screed, casing bead, corner aid, control joints and any pigment are separate orders from the bags.
How the answer is worked
Nothing here is a second formula. The Stucco Calculator runs forwards — a size in, a quantity out — and this page grows its own starting wall in proportion until the quantity it asks for is what you have. Where it rounds up to whole containers, the answer is the largest size before the next one would be needed.
Where the calculator adds an allowance for cuts or breakage when you order, the same allowance comes off here, because it is the same calculator: a stack you already own finishes less than its face value. Where it adds none, neither does this page — the settings beside the answer say which.
Stucco Calculator
runs it forwardsEstimate the bags of stucco mix needed to cover exterior walls.
Work out what to buy insteadSolve backwards
Other things you might already have
How big a bed will my bags of mulch cover?
Bagged mulch, worked by the Mulch Calculator.
How much bed will a yard of mulch cover?
Bulk mulch, worked by the Mulch & Gravel Calculator.
How much ground will my gravel cover?
Gravel, worked by the Mulch & Gravel Calculator.
How big a bed will my topsoil fill?
Topsoil, worked by the Topsoil Calculator.
How big a raised bed will my soil fill?
Raised bed soil, worked by the Garden Soil Calculator.
How much ground will my compost dress?
Compost, worked by the Compost Blend Calculator.
Solve backwards
Start from what is already in the yard
Paint, sheets, rolls, bags and pieces, each read the other way by the calculator that orders it.
The calculator's own figures
Nothing is estimated twice: the page runs the same calculator you would order with.
The largest size that fits
Where a calculator rounds up to whole containers, the answer stops before the next one.
Both unit systems
Gallons and litres, square feet and square metres, side by side.
Frequently asked questions
- How much wall does 10 bags of stucco mix cover?
- At the Stucco Calculator's own settings, 1,000 sq ft (92.9 m²) — 100 ft of wall 10 ft high. Every figure follows the settings, which you can change in the calculator.
- How many square feet does an 80 lb bag of stucco cover?
- Commonly about 100 square feet (9.3 m²) at standard application thickness, according to typical product coverage charts. A thick base coat or a heavy texture covers less; confirm against your product's own chart before ordering for a whole house.
- How many bags of stucco does a wall need?
- Measure the wall's length times its height, take off the large openings, and divide by the product's coverage — about 100 square feet per 80 lb bag — rounding up. A 40 by 10 foot wall with no openings is 400 square feet, so about 4 bags for the coat the chart describes.
- Why does stucco coverage vary so much?
- Because thickness, texture and the substrate all change it: a damp, smooth base takes less than dry open masonry, and a deep dash finish takes more than a tight sand finish. Mix that bounces off the wall or goes stiff before it is used adds to it again.