How long should curtain tie-backs be?

Tie-back length depends on the curtain fullness and fabric weight. A good starting point is 60% of the circumference of the gathered curtain. Heavy curtains need longer tie-backs; sheer curtains need shorter ones.

Where should tie-backs be positioned?

Standard positioning is roughly two-thirds down the curtain drop for a traditional look. At the halfway point for a formal look. Lower placement (three-quarters down) gives an elegant, elongating effect.

What interfacing should I use for tie-backs?

Use medium-weight fusible interfacing for standard tie-backs. For stiff crescent-shaped tie-backs, use heavyweight Vilene or buckram. For soft tie-backs, lightweight interfacing or none at all.

How do I attach tie-backs to the wall?

Use a cup hook, tie-back hook, or holdback mounted into the wall or window frame. For plaster walls, use wall plugs. Position the hook at the desired height and angle so the tie-back holds the curtain neatly.

SewCalcs

Tie-Back Calculator — Curtain Tie-Backs

Calculate fabric and dimensions for curtain tie-backs.

Curtain Stack Width

Width of gathered curtain

Tie-Back Width

Style

Pairs Needed

Seam Allowance

Fabric Price (optional)

How We Calculate This

Tie-back length is estimated from the curtain stack circumference. The cut dimensions include seam allowance and extra for padded styles.

The formula

Tie-back length ≈ Curtain stack circumference × 0.6

Cut length = Tie-back length + (Seam allowance × 2)

Cut width = Tie-back width + (Seam allowance × 2)

Frequently Asked Questions

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Last updated: February 2026

All calculations are estimates. Always verify quantities before cutting or purchasing fabric.