French panes should be priced per pane, not by glass square footage. Each shop needs to establish its own per-pane rate from the labor, material, overhead and profit the work requires. There is no single per-pane price that fits every shop or every job.
Square footage still matters for material planning. It just does not account for how many separate pieces you have to prepare, cut, handle and install. Thirty small panes can contain the same glass area as one large window while requiring a very different amount of work.
Count the actual film applications
Start by confirming how the door or window is built. True divided panes require separate film pieces. A removable grille over one sheet of glass may allow a single application, while a fixed surface grid can create a different installation scope. Count the pieces you will actually install rather than the rectangles visible in a photo.
Measure and identify the openings. Repeated panes can look identical without being the same size. Confirm access, the condition of the glass and surrounding finish, and compatibility between the glass and selected film. Include removal or unusual preparation where needed instead of letting it disappear into a standard pane rate.
Allow for the work repeated at every pane
Every separate piece brings another cycle of preparation and installation. The edges need attention, the film needs cutting and handling, and each piece needs positioning, finishing and inspection. Small dimensions reduce material use much faster than they reduce those repeated tasks.
Tight corners, contamination along the edges and delicate surrounding finishes can add time across the entire pane count. An extra minute on one pane may seem minor. Repeated across the job, it becomes labor the quote needs to cover.
Use comparable completed jobs to establish your pane allowance. Count person-hours, including helpers, rather than only elapsed time on site.
Build a rate from your own costs
Work out what a representative French-pane job costs your shop, then turn that into a selling rate for comparable panes.
Include the labor repeated at each pane and the work shared by the job: measuring, protection, setup, cut preparation, labeling, travel and final cleanup. Keep the task boundaries clear so the same work is neither missed nor counted twice.
Price the film you expect to consume from the roll, including cutting allowances and unusable offcuts. Installed glass area alone can understate that material cost. Check usable roll width and any required film orientation, and use cutting allowances and edge clearances appropriate to the product and installation method. A layout that saves a little film but adds handling time may cost more overall.
Add consumables and other direct job costs, then allow for overhead and the profit you need. The resulting selling price is the basis for your per-pane rate. Simply dividing an existing square-foot quote by the pane count does not correct an underpriced job.
Shared costs can be built into the pane rate or shown as a separate minimum or setup charge. Whichever approach you use, check the total. A rate that works across a large pane count may not cover a small job with the same travel and setup.
A simple comparison
Consider two doors with fifteen separate panes each. Each pane measures 10 by 16 inches, giving thirty film pieces and about 33.3 square feet of glass.
For illustration, assume the cleaning, handling, installation and finishing take seven person-minutes per pane. That is 3.5 person-hours before adding shared work such as cut preparation, setup, travel and final cleanup.
Suppose the shop calculates $450 in total direct costs after including all labor, film, consumables and vehicle costs. Its overhead allowance and profit target bring the required selling price to $660 before applicable tax.
That works out to $22 per pane for this particular job.
Applying an arbitrary $12 per square foot to the same glass would produce only $400. It would fall short of direct costs before contributing anything toward overhead or profit.
All of these figures are hypothetical, not recommended prices or production targets. The example assumes accessible panes, a checked glass-and-film combination, sound surrounding finishes and no old film removal. The point is to build the price around the work each piece creates, then use your own costs to set the rate.
Check the rate against the next job
Per-pane pricing still needs a defined scope. Different pane sizes, film costs, access, preparation and frame conditions can justify different rates. Group comparable panes together rather than forcing every opening into one price.
Make the pane count and included work clear in the quote. Identify removal, repairs, difficult access or other work that needs a separate allowance.
After installation, record the actual pane count, sizes, film consumption and person-hours. Compare them with the estimate and adjust the rate where the job shows a gap.
French-pane pricing should start with the number of pieces and what each one takes to complete. Keep square footage in the material calculation, and make sure your per-pane rate pays for the whole job.