How to Calculate Finished Width for Pleated Drapes
The finished width is the final width of each drapery panel after pleating and construction. It determines how your drapes hang, how well they cover the window, and how smoothly they operate. This guide walks through the exact measurements professionals use to calculate accurate finished widths for all pleated drapery styles.
Why Finished Width Matters
A precise finished width ensures:
- Proper window coverage
- Neatly aligned pleats
- Smooth stacking when opened
- Consistent symmetry between panels
Without proper finished width calculations, drapes may gap in the center, fall short of the return, or appear uneven.
1. Measure the Rod or Track Width
Start by measuring the full span of the rod or track where the drapery will be installed. This is your base measurement for determining the final panel width.
2. Add the Return
The return is the distance from the front of the rod to the wall. It ensures the panel wraps back fully to block light and create a finished look.
Typical returns: 3.5"–4"
3. Add the Overlap
The overlap is where the leading edges of two panels meet in the center. Most pinch pleat styles require:
2"–3" overlap
4. Determine the Number of Panels
Decide how the drapery will operate:
- Two-way draw: Divide the total finished width in half
- One-way draw: Use the full finished width for one panel
5. Adjust for Pleat Style
Certain pleat styles require slight adjustments:
- Pinch Pleat: Standard calculations apply
- Goblet Pleat: May require wider finished widths due to deep spacing
- Cartridge Pleat: Needs extra width to maintain cylindrical folds
- Ripplefold: Determined by carrier spacing, not traditional finished width
Example Calculation
Rod width: 72"
Return: + 3.5"
Overlap: + 2.5"
Total Finished Width: 78"
For a two-way draw, each panel would be cut to a 39" finished width.
Quick Reference Chart
| Pleat Style | Typical Return | Typical Overlap |
|---|---|---|
| Double/Triple Pinch | 3.5"–4" | 2"–3" |
| Goblet Pleat | 4" | 2"–3" |
| Cartridge Pleat | 4" | 2"–3" |
| Ripplefold | N/A | N/A |
Professional Tip
Always calculate finished width before determining fabric fullness. Fullness is applied to the finished width — not the other way around.
Pro Tip: The EZ Pleating Curtain Calculator automatically applies returns, overlaps, and pleat spacing for perfect accuracy.
Getting finished width right ensures your pleated drapes meet cleanly at the center, wrap fully at the return, and create a balanced, professional appearance. Consistent calculations lead to consistent results across every project.
