Drapery Panel Width Calculator for Perfect Fit

🛏 Drapery Panel Width Calculator

Size each panel, the full opening, and the cut width with clean, style-aware logic

📌 Quick presets

Panel settings

Measure the full span you want the drapery to cover.
More panels mean narrower finished widths per piece.
Standard lined panels with balanced fullness.
This multiplies the opening width to set drape gather.
Use the actual usable bolt width after selvage trimming.
Each panel gets two side hems, left and right.
Used only when you have more than one panel.
Add more if stripes, repeats, or motifs must align.
This keeps the stack clear of the glass or wall edge.
Helps cover trim loss, easing, and re-cut mistakes.
Width results
Finished panel width
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Cut panel width
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Total finished width
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Fabric widths needed
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📊 Style guide

1.5x
Sheer
Light gather for soft daylight
2.0x
Standard
Balanced everyday drapery look
2.5x
Formal
Deeper folds for a richer finish
3.0x
Luxe
High fullness for dramatic stackback

💡 Practical tips

Tip: If you are between two panel counts, test the larger count first. Smaller finished widths usually stack cleaner and are easier to balance at the center.
Tip: Pattern repeats can change the cut width more than people expect. Use the match allowance field before you commit to fabric cuts.

📐 Fullness guide table

Style Fullness Hem Best use
Sheer and airy1.5x1 inLight, open rooms
Standard lined2.0x1.5 inMost bedrooms
Tailored casual2.2x1.5 inClean, relaxed rooms
Pinch pleat2.5x2 inFormal living spaces
Blackout private2.75x2 inDarkening and privacy
Luxe formal stack3.0x2.5 inDeep, dramatic folds

📏 Panel count guide

Opening 2 panels 3 panels 4 panels
48 in24 in each16 in each12 in each
60 in30 in each20 in each15 in each
72 in36 in each24 in each18 in each
84 in42 in each28 in each21 in each
96 in48 in each32 in each24 in each
120 in60 in each40 in each30 in each

🛠 Fabric width guide

Usable width Single panel Two panels Note
44 in1 width2 widthsNarrow decor
54 in1 width2 widthsCommon home fabric
60 in1 width2 widthsWide drape fabric
72 in1 width1 widthExtra wide cloth
96 in1 width1 widthSingle panel only
108 in1 width1 widthVery wide panels

📑 Rod extension guide

Opening Short rod Medium rod Wide rod
36 in4 in each side6 in each side8 in each side
48 in5 in each side7 in each side10 in each side
60 in6 in each side8 in each side12 in each side
72 in6 in each side8 in each side12 in each side
84 in7 in each side10 in each side14 in each side
96 in8 in each side12 in each side16 in each side

📋 Width reference cards

Sheer

1.5x
Light gather

Best when you want daylight, softness, and a slimmer stack at the sides.

Standard

2.0x
Balanced width

The common starting point for bedrooms, offices, and casual living spaces.

Formal

2.5x
Deeper folds

Use for heavier fabrics, tailored pleats, and a stronger visual frame.

Luxe

3.0x
Full stackback

Ideal for velvet, dramatic windows, and the widest, richest drape look.

For excellent face matter to reach the right width of the drapery panels. First measure the window that you want to cover. The width estimates between the walls of the window frame.

At typical windows you operate to add fully 12 inches to the whole wide count. Like this covers about 6 inches and have 6 inches for returns what gives nice seamless look. Otherwise you can add 4 until 5 inches of coverage at every side.

How to Measure Curtain Width and Number of Panels

What does whole of 8 until 10 inches to the window width. For instance for 52-inch window use size of 68 inches or more for expand the window sight. Only recall that both sides of the window molding stays visible by means of this solution.

Fullness forms center of the width. For avoid wrong look the cloth width must not be less than double in the window width. Usual rule-of-thumb suggests fabric in 1.5 until 3 times the window width.

This ensures right fullness during pleats. For 100-inch window intend curtain width of 150 until 200 inches. At dense curtain usually 48 until 54 inches wide require 4 panels for central opening.

In bedrooms panels usually follow 2 until 2.5-times width rule. Heavy fabrics well help against drafts here. Decorative panels that does not close intend half window width included apt amount.

Different styles require different rules. At pleated drapery the standard is double fullness so twice the rod width. For ripple folds the panel width matches rod or track width divided by panel number.

Hanging the bottom panel width will be around 2.1 times the upper. The flat draperwidth must be two until three and half times the dressed or stacked back width. Many panels measure 50 until 54 inches.

Standard draperlength accustom 63, 84, 95, 108 or 120 inches. For whole width multiply the rod longon in 1.5 for light face 2 for standard or 2.5 for full fullness.

Drapery Panel Width Calculator for Perfect Fit

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