SettingsSettings for this calculationUS
The standard allowance most suppliers and estimating guides assume for ordinary work.
The elevation's face area with openings deducted.
Deduct windows, doors and any area not receiving finish. Keep this figure to the flat face of the wall — the surfaces created by reveals, returns and banding are added on the next line, because they are easy to forget and they are what makes a heavily articulated elevation cost more than its area suggests.
The extra finished surface created by three-dimensional detailing.
Every reveal has two sides and a base; every window return is a strip the width of the insulation around all four edges; aesthetic banding adds a face and two returns along its whole length. On a facade with deep detailing this can add a tenth to the finished area, and it is the item that turns a well-measured elevation into a short order.
The area one unit of finish covers at the aggregate grade specified.
Coverage varies enormously with aggregate grade and texture, which is why this is an input and not a constant. A fine sand-float texture goes much further than a coarse aggregate pulled to a heavy trowel finish, and the same product code covers different areas in different textures. Take the figure from the data sheet for the exact texture named in the specification.
The area one unit of primer covers on a cured base coat.
Primer goes much further than finish because it is a thin, even film rather than a textured build. Its job is to equalise the suction of a base coat that cured unevenly across an elevation and to give the finish a consistent colour ground, and skimping on it produces exactly the blotching that later gets blamed on the finish material.
The margin added for scaffold-level part pails, tinting reserve and touch-in.
Finish is tinted in batches, so running out means either a colour break on a live elevation or a wait for a matched batch. A held reserve for touch-in after other trades finish is the other half of this allowance, and it is worth carrying separately in the order if the elevation is large.
The volume of a single pail as your supplier sells it.
Container sizes are a market convention rather than a physical constant, so this is asked rather than assumed. Change it to whatever your supplier actually delivers, and remember that some finishes are sold by mass rather than volume — in that case divide the sack mass by the product's density to get the figure this line wants.
Pails of finish needed
13 pails
The arithmetic is exact; the coverage rate is not. Published rates assume a flat, correctly primed base coat and an experienced hand, and a wall that cured unevenly or a texture pulled heavier than the sample will both consume more than the sheet promises.
- Finish material required
- 60.54 gal
- Primer material required
- 7.57 gal
- Pails of primer
- 2 pails
- Elevation surface including detailing and waste
- 1,513.6 ft²
They open the calculator with your figures already in it
EIFS Finish and Primer Pail Count Calculator: 13 pails — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
Show calculation logicHide calculation logic
How this was calculated
Formula source(s)
- ASTM C1397, Standard Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage — establishes that finish and primer are applied as a system to the manufacturer's stated rates; the rates themselves are product data, not standard figures
- Material volume = (net area + added detail area) × (1 + waste allowance) ÷ coverage rate; pails = that volume divided by the container size, rounded up to a whole container
Inputs used
- Net Elevation Area
- 1290 sq ft
- Added Area of Reveals, Returns and Banding
- 86 sq ft
- Published Coverage Rate for the Finish
- 25 ft²/gal
- Published Coverage Rate for the Primer
- 200 ft²/gal
- Waste Allowance (%)
- 10
- Container Size Supplied
- 5 gal
Intermediate steps
- Finish material required
- 60.54 gal
- Primer material required
- 7.57 gal
- Pails of primer
- 2 pails
- Elevation surface including detailing and waste
- 1,513.6 ft²
Confidence note: The arithmetic is exact; the coverage rate is not. Published rates assume a flat, correctly primed base coat and an experienced hand, and a wall that cured unevenly or a texture pulled heavier than the sample will both consume more than the sheet promises.
What this calculation does not cover
- Covers finish and primer only. Base coat, mesh, adhesive, insulation board and sealant are separate take-offs with their own coverage.
- Assumes one texture and one colour across the whole elevation; a facade with two finishes needs the calculation run once for each.
- Does not reserve material for the touch-in after following trades, which on an occupied or fast-tracked job is a real and separately ordered quantity.
Estimated cost — your price
This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.
Part of a bigger job
This trade is one line of a job takeoff. Run the whole job and every other trade comes back with it, off the same measurements.
also measures9 other trades
Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-09-02 · in the site-wide review of 2026-09-06 · v1.0.1
Regulatory standards & verification citations2
- ASTM C1397, Standard Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage — establishes that finish and primer are applied as a system to the manufacturer's stated rates; the rates themselves are product data, not standard figures
- Material volume = (net area + added detail area) × (1 + waste allowance) ÷ coverage rate; pails = that volume divided by the container size, rounded up to a whole container
Which documents these citations point at
Standards referenced: ASTM C1397 (ASTM International, United States).
Cite this page
Your workspace
Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.
Tools and safety for this job
To apply the render finish (EIFS finish coat). Generic types, no brands, no prices.
Protection this work requires
- Cutting or grinding concrete, masonry, screed, tile or fibre-cement board releases respirable silica: cut wet or extract at the tool, and wear a P2/N95 respirator at minimum — a nuisance dust mask does not filter it.
- Wet cement and lime burn skin and eyes painlessly until the damage is done: waterproof gloves to EN 374, safety glasses whenever the mix can splash, and never kneel in wet mix in permeable trousers.
- Most fatal falls on small jobs are from under three metres: use a tower or a ladder tied at the top, and never work off the top two rungs.
Show the 4 tools this job needsHide tools
Essential
Paddle mixer
Plastering trowel and hawk
Roller frame, sleeves and tray
Recommended
Mixing bucket or tub
Also needed as materials: roller sleeves.
what each plastering tool is for, and the spec that decides which to buy where one does.