Blindsgalore Harmony Cellular Shades: Blackout

How We Calculate Your Custom Fit

Give us your exact window opening size (for inside mounts) or the total area you want to cover (for outside mounts). Our factory handles all the math to make sure your shades fit and move smoothly.

Inside Mount Factory Deductions

(These are for your information; no math is required on your part!)

• Headrail: 3/8" narrower than the width you order
• Fabric Width: 3/8" narrower than the width you order
• Height: Produced at the exact height you order

Outside Mount Factory Deductions

• Headrail: Produced at the exact width you order
• Fabric Width: 1/4" narrower than the width you order
• Height: Produced at the exact height you order

Note: Finished measurements may vary by approximately 1/8"

Will This Window Treatment Fit My Window?

Our window treatments are custom-crafted to fit a wide variety of spaces. If your window dimensions fall within the ranges listed below, you’re already halfway there! Next, we'll help you check your mounting space, which may vary depending on the style you choose.

Inside Mount Installation

Your window opening needs a minimum depth to hold the brackets. If your opening is deep enough, you can achieve a flush mount look where the treatment sits entirely inside the opening. Note: If your depth is between the minimum and flush requirements, your treatment will install securely but may stick out slightly from the window opening.

Outside Mount Installation

This installs on the wall or trim above your window. It’s ideal for total light control or your windows are too shallow for an inside mount. Ensure you have enough flat surface space to install the mounting brackets.

• Width 19" - 104"
• Height 20" - 137"
• Minimum inside-mount depth 1 1/2"
• Minimum flush-mount depth 2 3/8"
• Minimum outside-mount space 2 3/4"
• Headrail depth and height 2" x 1 1/2"

Please note the following exceptions to the above specifications

Cord Loop Lift

• Width 19" - 105"
• Height 20" - 137"
• Minimum inside-mount depth 3/4"
• Minimum flush-mount depth 2 1/4"
• Minimum outside-mount space 1 1/2"
• Headrail depth and height 2 1/4" x 1 3/8"

Cordless Lift

• Width 19" - 84"
• Height 20" - 84"
• Minimum inside-mount depth 1 1/2"
• Minimum flush-mount depth 2 3/8"
• Minimum outside-mount space 2 3/4"
• Headrail depth and height 2 1/16" x 1 1/2"

Cordless Top Down Bottom Up Lift

• Width 24" - 72"
• Height 20" - 84"
• Minimum inside-mount depth 1 1/2"
• Minimum flush-mount depth 2 3/8"
• Minimum outside-mount space 2 3/4"
• Headrail depth and height 2" x 1 11/16"

Rechargeable Bluetooth Motorized Lift

• Width 24" - 104"
• Height 20" - 137"
• Minimum inside-mount depth 1 1/2"
• Minimum flush-mount depth 2 3/8"
• Minimum outside-mount space 2 3/4"
• Headrail depth and height 2 3/16" x

Rechargeable Bluetooth Motorized Top Down Bottom Up Lift

• Width 34" - 104"
• Height 20" - 137"
• Minimum inside-mount depth 1 1/2"
• Minimum flush-mount depth 2 3/8"
• Minimum outside-mount space 2 3/4"
• Headrail depth and height 2 3/16" x