Trendyblinds | How to Measure

Measuring for our blinds and shades is simple!

  • Arch Top

    Measuring - Inside Mount

    First, measure the base width inside the arch opening.

    Then measure the height at the middle (tallest) point inside of the arch opening.

    Other suggestions:

    Keep in mind that if you are ordering an arch, the height of your arch must be half the width. You will have a perfect semi-circle. If your window arch is not perfect, please call us to discuss your options (416-721-1002).

  • Drapery
    1. Select Panel Quantity
    • All Trendy Blinds Drapery Pricing is Per-Panel.
- Two (2) Panels will make a complete pair.
    2. Select Finished Length

    Note: We recommend installing the hardware 8" above the window opening.
    Grommet Panels:
    • Measure from the top of the pole to the floor.
    • Add 1-1/2" to this measurement for Grommet Placement.
    • Add additional length for Puddling if desired. (See Puddling Guide below)
    Flat Panels &
    Pleated Panels:
    • Measure from the bottom of the drapery ring to the floor.
    • Add additional length for Puddling if desired. (See Puddling Guide below)


    3. Select Finished Width
    • Measure the width of your window from outside edge of window frame to the other side outside edge of window frame (FFW – frame-to-frame Width).
    • Add between 16" to 24” (A) to this dimension– wider additions for wider windows. (This makes your window appear larger, and allows more glass to be exposed when opened to provide you with a better view outside.)
    • Per-Panel width (PPW) = (FFW+A) / 2.
    Puddling Guide - If you prefer for your drapes to Puddle here are some general guidelines:
    Minimal Puddle - Small break in the fabric where it meets the floor.
    Add 1” - 3” to your length
    Moderate Puddle - More dramatic break with some fabric resting on the floor.
    Add 3” - 6” to your length
    Opulent Puddle - Generous amount of fabric pooling on the floor.
    Add 6” - 8” to your length


  • Fabric Valance
    1. Determine Valance Width
    Allow a minimum clearance of 1” each side of whatever the valance is mounted over plus an additional width to accommodate any brackets or operating cords of existing window coverings (blinds or drapes) on the window.

    2. Determine Valance Height
    Height is mostly determined by the scale of the window or the undertreatment (i.e. drapes or blinds) covering the window. Generally, allow 15% to 18% of the height of the undertreatment, or the distance from the top of the valance to the floor.

    3. Determine Valance Return Size
    Valance Return Size is determined by the projection of the undertreatment to make sure it won't interfere with the operation of the covering. The chart below gives minimum return requirements for most situations.

    UNDERTREATMENT VALANCE RETURN
    Window with no undertreatment or
    Window with inside mount undertreatment
    1-1/2” return
    1” mini-blind 2-1/2”
    2” mini-blind 3-1/2”
    3-1/2” vertical blind 5-1/2”
    Honeycomb shade 2-1/2”
    Honeycomb shade, double cell 3-1/2”
    Single-layer drapery 5-1/2”

  • Blinds and Shades

    Measuring - Inside Mount

    • Use a steel measuring tape.
    • Measure window opening size WIDTH in three places: Top, Middle, Bottom. The smallest width will be used. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/8 of an inch.
    • Measure window opening size HEIGHT in three places: Left, Middle, Right. The longest height will be used. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/8 of an inch.
    • For inside mount - Take the ACTUAL WINDOW OPENING SIZE to give to us, our factory will subtract approximately 0.5 cm on each side of the window width for it to fit into that opening.
    • Measure window DEPTH of flat surface for mounting the blind or shade. Provide measurements in centimeters rounded to the nearest tenth (example 78.2 cm) or in inches to the nearest 1/8 of an inch.
    • Provide any additional comments such as protruding handles, window direction and outside view.
    • DOUBLE-CHECK all measurements.

    Measuring - Outside Mount

    • Use a steel measuring tape.
    • Measure window frame-to-frame WIDTH in three places: Top, Middle, Bottom. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/8 of an inch.
    • Measure window frame-to-frame HEIGHT in three places: Left, Middle, Right. The longest height will be used. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/8 of an inch.
    • For outside mount, our factory will NOT subtract anything for the product dimensions.
    • For outside mount, our factory will NOT subtract anything for the product dimensions.
    • Provide any additional comments such as protruding ledges or handles, window direction and outside view.
    • DOUBLE-CHECK all measurements.

  • Shutters

    Measuring

    • Use a steel measuring tape.
    • Measure window opening size WIDTH in three places: Top, Middle, Bottom. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/16 of an inch.
    • Measure window opening size HEIGHT in three places: Left, Middle, Right. Provide measurements in centimeters rounded to the nearest tenth (example 108.3 cm) or in inches to the nearest 1/16 of an inch.
    • Measure window DEPTH of flat surface. Provide measurements in centimeters rounded to the nearest tenth (example 78.2 cm) or in inches to the nearest 1/16 of an inch.
    • Provide any additional comments such as protruding handles, etc.
    • DOUBLE-CHECK all measurements.