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.
Narrower does not mean standard
Stall openings vary, and manufacturers sell multiple narrow and extra-long combinations.
Avoid width-only shopping
A curtain with enough width can still be too short or have incompatible ring spacing.
Verify the lower edge
The desired clearance depends on the actual receptor, curb, and selected product. Measure rather than guessing.
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.
- US shower-curtain rangeIKEA · reviewed 2026-09-11
Actual retailer range includes both 71 × 71 in and 72 × 72 in products, demonstrating manufacturer variation around the common convention.