Curtain Measuring Guide

Simplify your curtain measurements with our Measurement Finder. It guides you step-by-step through the process – easy, convenient, and for a perfect fit.

  • Step 1: Measure the width and position of the curtain rod

    • Existing Curtain Rod:
      Measure the total length of the curtain rod.
    • No Curtain Rod Installed Yet:
      First, determine the position of the curtain rod – above and to the sides of the window frame.
    • Also, consider the height at which the rod should be mounted to achieve the desired visual effect.

  • Step 2: Understanding BTTO Standard Fabric Fill

    • To prevent your curtains from looking flat like a stretched surface, we recommend sufficient fabric fullness for more volume and elegant folds.
    • At BTTO, we use a fabric allowance of 200–250% to create beautiful folds and give the curtains a high-quality, luxurious look.

    Recommended Fabric Fullness:

    • 2× fabric fullness (200%) – for classic folds (e.g., pencil pleat tape)
    • 2.3–2.5× fabric fullness (230–250%) – for full, triple pleats (e.g., triple-folded pleats)

Types of Pleats for Curtains

• Example: For a curtain rod with a width of 254.0 cm, order 2 curtain panels, each 127.0 cm wide, if you desire an elegant pleated look.

• Curtain Width (Panel Width): Measured from the first pleat on the left to the last pleat on the right when the curtain is fully extended – not when stacked.

• Curtain Height (Length): Measured from the top edge to the bottom edge of the curtain.

• Fabric Fullness (Pleat Factor):
    – Double Pleat: approx. 200% fabric addition
    – Triple Pleat: approx. 230–250% fabric addition

• Stacked Condition (Stackback Width): The width of the stacked curtain is approx. 15–20% of the total ordered width.

Soft-top suspension (e.g., loops / back tab)

• Width per panel (fully extended): corresponds to the ordered width.

• Example: For a curtain rod with a width of 254.0 cm and 200% fullness, order 2 curtain panels.
    – Each panel should be 254.0 cm wide (totaling 508.0 cm), suitable for a soft-top hanging style such as loops or back tabs.

• Curtain height (length): Measured from the top edge to the bottom edge of the curtain.

• Suitable curtain rods:
    – Suitable for loop or back-tab hanging with a rod diameter of up to approx. 4.1 cm.

• Fabric fullness:
    – Standard: 200% fabric addition for a uniform, light pleated look.

• Stacked condition (stack width):
    – The width is reduced to approx. 15–20% of the total ordered width.

**Eyelet Hanging**

• Width per panel (fully extended): corresponds to the ordered width.

• Example: For a curtain rod with a width of 254.0 cm and 200% fabric fullness, order 2 curtain panels with a total width of 508.0 cm.
    – This corresponds to 254.0 cm per panel, ideal for grommet hanging.

• Curtain height (length): Measured from the top edge to the bottom edge of the curtain.

• Fabric fullness:
    – Standard: 200% fabric addition for even, modern wave pleats.

• Grommets (metal rings):
    – Inner diameter: approx. 4.1 cm (suitable for most curtain rods).

• Stacked state (stacking width):
    – The width is reduced to approx. 15–20% of the total ordered width.

Ripple Fold

• Finished Width: corresponds to the ordered width.
    – The specified width is the finished width with formed waves.
    – Note: The finished width is measured after wave formation, not when the fabric is laid out flat.

• Panel or Pair selectable:
    – Single (1 panel): For a track length of 254.0 cm, you will receive 1 panel with a finished width of 254.0 cm (incl. waves).
    – Pair (2 panels): You will receive 2 panels, each with a finished width of 127.0 cm (incl. waves).

• Fabric Fullness:
    – Standard: 200% fabric allowance for even, flowing waves.

• Stacked State (Stack Back Width):
    – Approx. 25.4–38.1 cm (corresponds to about 20–30% of the ordered panel width).

• Curtain Height (Length):
    – Measured from the hook in the track to the bottom edge of the curtain.

Important information before measuring

  • Your curtain will be made to the exact width and length you specify – precise measurements are crucial .
  • Curtain styles such as Pinch Pleat, Back Tab Pinch Pleat, Triple Pinch Pleat, Tailor Pleat, Triple Tailor Pleat and Flat Hooks come with adjustable hooks for ease of hanging.
  • Note: Curtain rings or clip rings are not included and must be purchased separately.
  • Always use a metal tape measure and measure to the nearest inch for width and length.
  • Even similar-looking windows or doors can vary slightly in size – measure each one separately for the best fit.
  • This guide provides basic recommendations but does not cover every possible situation.


For complex layouts or special installations, please send us an email to sales@btto.com – we'll be happy to help!