How to measure
- 01
Measure the actual working rod or track width; if hardware is not installed, record the window-frame width and your planned side extensions separately.
- 02
Measure the drop from the reference point stated for the selected heading—not from an unrelated edge of the window.
- 03
Check whether a package contains one panel or a pair, then compare total flat fabric width rather than the label width alone.
- 04
Recheck the selected product, tape, hooks, carriers, and fabric before ordering or cutting.
WORKED CALCULATION
Split-pair pleated example
- Finished track coverage
- 84 in (213.4 cm)
- Panel count
- 2
- Heading
- Pinch pleat
42 in (106.7 cm) base finished coverage per panel
Add only the returns and overlap specified by the selected hardware/workroom. Do not multiply finished coverage by fullness twice.
Recalculate with your measurementsConfirm what “width” means on the order
A finished pleated width is already gathered by construction. If the maker requests finished coverage, do not multiply that number by fullness again; the workroom accounts for cloth inside the pleats.
Keep overlap and returns system-specific
A split-draw treatment may include center overlap and side returns. Use the selected rod, carrier, and workroom specification rather than a universal allowance.
Measure drop from the real hook point
Ring eyes, carrier hooks, pin position, and heading height shift the top of the fabric. Kirsch top-hole documentation demonstrates that heading and hardware geometry change the relevant length deduction.
Use fullness only for fabric planning
Rough cloth factors can help estimate yardage, but pleat style and spacing are workroom decisions. Confirm the exact fabric requirement before cutting or ordering custom work.
AUDITABLE DATA RECORD
Pinch-pleat curtains
- Aliases
- French pleat, double pleat, triple pleat
- Heading
- pinch pleat
- Fullness range
- 2×–2.5×
- Commercial examples
- Usually custom or semi-custom
- Regions
- US, UK, international
- Value type
- design recommendation
- Limitations
- Pleat style and spacing are workroom decisions; confirm whether the maker wants finished coverage or flat fabric width.
Before you order or cut
Measure the actual window and selected product. Finished sizes, fullness, header take-up, hardware geometry, and manufacturer tolerances vary. Fabric can shrink, stretch, or behave differently by composition. Measurements do not guarantee fit, privacy, water containment, installation, load capacity, or structural safety. Use the selected product instructions, and have a professional workroom verify expensive custom-fabric orders.
SOURCE NOTES
What this page is based on
Measurements here combine mathematical results with labeled commercial conventions and design recommendations. Disagreements are kept as ranges rather than averaged into a false standard.
- Buying curtainsJohn Lewis & Partners · reviewed 2026-09-11
Retailer/workroom guidance on pole extension, hanging references, sill/floor endpoints, ready-made metric ranges, and double fullness.
- Drapery hardware resource libraryKirsch · reviewed 2026-09-11
Manufacturer library for traverse-rod specifications, draw configurations, master carriers, pleated stack guidance, and system-specific order forms.