Made for the drapery workroom

Drapery workroom calculators.

Free drapery workroom calculators for fabric yardage, lining and clear cutting lists. Bring your finished measurements; keep your construction choices in view.

Free to use No account needed
Sunlit drapery workroom with linen curtains, a cutting table and fabric swatches

Example · Linen drapery pair

12 ydFace fabric to order4 cuts54″ × 108″ each
Built around real measurements Every calculation explained From screen to cutting table Your project stays on your device

The workroom toolkit

The right tool for the next cut.

Start with the fabric.
See exactly how much you need, and why.

Available now

Drapery yardage calculator

Finished dimensions in. Face fabric, lining and a clear cutting plan out. With your fullness, hems and pattern repeat accounted for.

Inches & centimetersStraight pattern repeatPrintable cut list
Open the calculator
Example cutting plan
4 widths · 54″ usable fabric
L-01
108″
L-02
108″
R-01
108″
R-02
108″
Cut lineJoin at side seams
2 panels · 2 widths per panel12 yd total

Drapery workroom calculations, connected.

One calculator brings together the fabric order, the construction allowances and the cutting list for a rectangular panel or pair.

Face fabric, figured out

Turn finished coverage, drop and fullness into a fabric order. Set usable cloth width, returns, overlap and your own hem allowances; see the number of full-width cuts behind the total.

Calculate face fabric

Lining has its own numbers

A wider lining cloth can need fewer cuts than the face fabric. Give it its own usable width, finished shortening, hems and reserve to calculate a separate lining quantity.

Include lining

Know where every yard goes

Read the breakdown for finished length, hems, repeat adjustment, start allowance, reserve and purchase rounding. You can see what changed when you choose a different construction method.

Understand the method

A plan you can take with you

Each cut has a material, panel assignment, width, length and direction. Print the list, save it as a PDF through your browser, or export a CSV to use alongside your work order.

See the workflow

From the order sheet to the cutting table.

Useful numbers start with the way you make a treatment. Keep your dimensions and decisions together.

Start with the finished treatment.

A window measurement is only the beginning. Drapery yardage depends on the coverage your treatment must provide, the fullness you want and the way your workroom finishes each edge.

Workroom Tools connects those decisions to an order quantity. Enter a single rectangular panel or a symmetrical pair, choose inches or centimeters, and review the full-width cuts needed for your dimensions. The loaded example helps you explore the calculation before entering your own job.

Linen draperies beside a sunlit workroom table with fabric samples
Begin with the intended coverage and finished drop.

Keep your methods in the calculation.

Your hems, seams and finishing choices belong in the estimate. Set total cloth consumed by each allowance, then inspect the resulting cut lengths and any excess width to trim.

The same job can move from a transparent estimate to a cutting list without retyping measurements. Save one project per tool in this browser, export a backup, and bring a printed copy to the table. Before cutting, compare the plan with the actual cloth, seam placement and motif position.

Hands checking a linen measurement on a wooden cutting table beside shears
The numbers support your workroom judgment.

A clear path to your first cut.

Use the example to get familiar with the tool, then follow these three steps for your own project.

  1. 01

    Gather the right measurements

    Record finished rod coverage and drop, then check usable fabric width and any vertical repeat. Decide whether the job is one panel or a pair.

    Keep your chosen fullness, return, overlap and hem allowances beside the work order.

  2. 02

    Review the whole plan

    Enter the dimensions and inspect the widths per panel, length of each cut and fabric breakdown. Add lining if the treatment needs it.

    Check the trim allowance and whether you have included enough reserve for the actual cloth.

  3. 03

    Save it for the worktable

    Save the current project locally, export a project file for safekeeping, or print the cutting list on Letter or A4 paper.

    An exported project file can be imported on another device. The printout is a schematic, not a full-size template.

Questions about planning your curtains.

Who the tools are for, what is available today, and how your project is saved.

How much fabric do I need to make curtains?

The amount depends on finished coverage and drop, fullness, usable fabric width, hems and any pattern match. Start with the yardage calculator when those measurements are ready. Its example pair uses four 54-inch-wide cuts, each 108 inches long, for 12 yards of solid face fabric. Your own dimensions can change both the cut count and cut length; lining is a separate order.

Who are these drapery workroom calculators for?

Workroom Tools is built for small custom drapery workrooms, fabricators and experienced makers who work from finished measurements. The first calculator covers rectangular drapery panels with full-width vertical cuts. It helps organize the fabric arithmetic; you still choose the construction method and check the plan against your material.

Is the drapery calculator free to use?

Yes. The current drapery yardage calculator is free, including face fabric and lining calculations, the yardage breakdown, project export, CSV cut lists and printing. There is no payment step to use these features.

Do I need an account or an installed app?

No account or app installation is needed. Open the calculator in your browser and edit the example dimensions. JavaScript must be enabled for the calculations and local saving. Saving is optional; you can also export a project file directly.

Can I work in inches and centimeters?

Yes. Switch between inches and centimeters in the calculator. Purchasing quantities appear in yards when using inches, or meters when using centimeters. Dimensions are stored at an internal precision finer than the displayed values, so switching the display unit does not repeatedly round your project measurements.

Where are my measurements and saved projects stored?

Project calculations happen in your browser, and the Save on this device button stores one project per tool in this browser’s local database. There is no project cloud upload or automatic synchronization. Another browser or device will not have that saved copy. Export a project file before clearing browser data, changing devices or replacing a saved job.

Which tools are available right now?

There are 23 available tools for drapery yardage and headings, straight-repeat matching, multi-window cutting, Roman shades, cushions and pillows, fabric and foam layouts, and work orders. Dedicated tools also cover Ripplefold curtains, trapezoid cushions and curtain stackback. Open All tools to compare their inputs and outputs. Each page states its construction limits; a layout result is not a guarantee of the smallest possible material order.

Ready for your next project?

Let’s make the numbers work.

Start a drapery calculation