Custom curtains begin with accurate measurements—but the most common mistakes happen before the tape measure ever touches the wall. The hardware position, opening direction, fullness, and space needed when the curtains are open all affect the finished result.
Use this nine-point checklist before ordering made-to-measure curtains. It will help you record the dimensions that matter, avoid blocked glass and awkward hems, and communicate your plan clearly.
1. Confirm the hardware before measuring
If your rod or track is already installed, measure from the actual hanging system. If it has not been installed, decide where it will go before finalizing curtain dimensions. Moving the hardware later changes both width and finished length.
Record whether the curtains will use a wall-mounted rod, wall-mounted track, ceiling track, or inside mount. Also note the bracket depth and any decorative finials that limit usable space.
2. Measure the full usable track or rod width
Do not measure only the window glass. Measure the full usable span from the left end of the track or rod to the right end. This is the area your curtains need to cover.
If the hardware has not been installed, plan for it to extend beyond the window where possible. Extra width lets the curtains stack away from the glass when open, preserving daylight and making the window feel larger.
3. Decide how the curtains will open
Choose a center split, one-way draw, or stationary side panels. This determines the number of panels and where the fabric will collect when open. Check for doors, furniture, switches, radiators, handles, and uneven wall space before choosing the opening direction.
4. Allow for stack-back
Stack-back is the wall or track space occupied by the folded curtains when they are fully open. Heavy fabrics, deeper pleats, wider windows, and higher fullness generally require more stack-back.
If natural light is a priority, plan enough space beyond the glass for the curtains to open comfortably. This is one reason finished curtain width and raw fabric width should not be treated as the same measurement.
5. Measure height in more than one place
Floors and ceilings are not always perfectly level. Measure the finished height at the left, center, and right side of the opening. Record all three measurements instead of assuming they are identical.
For a ceiling track, measure from the track's curtain hanging point to the desired bottom edge. For a rod, measure from the actual ring, hook, or heading position specified for your curtain style.
6. Choose the finished length
Decide whether the curtains should float just above the floor, lightly kiss it, create a subtle break, or puddle. A clean, practical floor-length finish is usually planned slightly above the finished floor, while a decorative break or puddle needs additional length.
For a closer comparison of these looks, see our curtain length guide.
7. Confirm the header and hanging point
Wave, pinch pleat, grommet, rod pocket, and other header styles do not all hang from the same point. The chosen style affects the visible height, folds, hardware compatibility, and space between the fabric and wall.
Share a clear photo of the installed hardware—or the exact hardware specification—when requesting made-to-measure curtains.
8. Choose fullness intentionally
Fullness describes how much fabric is used relative to the finished coverage width. A lighter look may use around 1.5× fullness, a balanced look often uses around 2×, and a deeper decorative fold may use around 2.5×. The suitable ratio still depends on the curtain style, fabric, track, and panel construction.
Use our curtain fullness guide as a visual starting point, then confirm the final specification for your selected product.
9. Photograph, label, and recheck every opening
For multiple windows, label each opening and record its measurements separately. Take one full-wall photo and one close-up of the hardware for each location. Measure twice with a steel tape measure, and keep the original numbers rather than rounding early.
Final measurement checklist
- Installation type and hardware position
- Full usable track or rod width
- Center split, one-way draw, or stationary panels
- Available stack-back space
- Height measured at left, center, and right
- Desired floor finish
- Header style and exact hanging point
- Preferred fullness and fabric weight
- Photos, obstacles, and labels for every opening
Plan before you order
A careful measurement plan makes the finished curtains easier to operate and more visually balanced. You can organize your window dimensions with the free XPRO HOME Measure tool.
This guide is a planning aid. Always review the final production dimensions, selected header, hardware, and product specifications before placing an order.