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Free Accordion Shutter Estimating Calculator
Enter each opening's rough width and height and get the estimating square footage instantly — using the exact quick-estimate formula a working, licensed Florida building contractor uses in the field: add 6 inches to the height for header and sill, convert to square feet, then add 17%. Your measurements never leave this page.
This calculator gives you the square footage and the price — InvoiceStream Pro turns it into a signed job.
Turn your measurements into a professional estimate your customer can e-sign on the spot — InvoiceStream Pro, free to start →Openings
Rough-opening width and height, in inches.
When filled in, the estimate sheet shows a price per opening and a job total.
Live estimate sheet
| Opening | Width (in) | Height (in) | Est. SF |
|---|---|---|---|
| Opening 1 | — | — | 0.00 |
Quick-estimate tool for planning and pricing conversations — always confirm with a site measure before ordering material. Not a substitute for manufacturer specs or engineering.
Frequently asked questions
Why do I add 6 inches to the opening height?
Accordion shutters mount to a header track above the opening and a sill track below it, so the shutter assembly covers more than the opening itself. Adding 6 inches to the measured height accounts for that header and sill clearance before you convert to square feet.
What does the 17% estimating factor cover?
It is an estimating factor used in quick pricing — it pads the raw opening square footage to account for things like tracks, overlap, and waste, so a fast field number stays realistic without doing a full material takeoff.
Is this an exact quote?
No — it is a quick estimate for planning and pricing conversations. Always confirm the dimensions with a site measure before ordering material, and follow the manufacturer's specs and any engineering requirements for the actual installation.
How do I price the estimate?
Enter your own price per square foot and the calculator multiplies it against the estimating square footage for each opening and for the job total. If you want to turn those numbers into a professional estimate your customer can e-sign on the spot, that is what InvoiceStream Pro does — you can start there for free.