How To Measure Doors For Shades

Achieve the Perfect Fit Every Time Getting the exact measurements for your motorized shades is easier than you think. Whether you are outfitting an elegant French door, a modern sliding door, or a wide side-by-side window frame, simply grab a steel tape measure and follow our step-by-step guide below.

Measurement Assistant

Official Sizing Calculator
Measure the glass. System adds +2.5" to Width and +5" to Height.
System adds +6" to Width and +3" to Height.
Sectional Algorithm: Edge blinds get +3" extra width.
Recommended Order Size
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How to Measure French Doors

For French doors, shades are typically mounted directly on the door to cover the glass panels.

Step 1: Measure Width (① / ② / ③) Measure the width of the glass in three places (top, middle, and bottom). Record the longest measurement.

Step 2: Measure Height (④ / ⑤ / ⑥) Measure the height of the glass in three places (left, middle, and right). Record the longest measurement.

Calculations for Your Order: To ensure optimal light blocking and full privacy coverage, extra overlap is required.

  • Order Width = Longest Width + 2.5 inches
  • Order Height = Longest Height + 5 inches

How To Measure Sliding Doors

Option A: Outside Mount (Highly
Recommended)

Outside mount provides the best light control and privacy, and clears the door handles easily.

  • Measure Width: Measure the exactwidth of the opening you wish to cover.
  • Measure Height: Measure from whereyou plan to install the headrail down to the floor or desired bottompoint.

Option B: Inside Mount

Only suitable if your frame depth is greater than 3 inches.

  • Step 1: Measure Width: Measure in 3 places (top, middle, bottom). Use the shortest measurement to ensure it fits inside.
  • Step 2: Measure Height: Measure in 3 places (left, middle, right). Use the longest measurement.

Calculations for Your Order:

  • Order Width = Shortest Measured Width
  • Order Height = Longest Measured Height

How to Measure Side by Side (Multiple Blinds)

If you have a large door or window openingthat requires 2, 3, or more separate shades installed side-by-side, precisionis key.

⚠️ CrucialCheck: Window Depth Again, if your window depth is lessthan 3 inches, please choose the Outside Mount.

Option A: Inside Mount

  • Measure Width: Measure the total frame width in 3 places. Take the shortest total width.
  • Measure Height: Measure the total frame height in 3 places. Take the longest height.

Calculations for Your Order:

  • Order Width (Per Blind) = Shortest Total Width ÷ Number of Blinds
  • Order Height = Longest Measured Height

Option B: Outside Mount

  • Blind A (Left outer blind)Order Width = Width ① + 3~6"Order Height = Height ⑤ + 3~6"
  • Blind B (Middle blind)Order Width = Width ② (No extra width needed)Order Height = Height ⑥ + 3~6"
  • Blind C (Middle blind)Order Width = Width ③ (No extra width needed)Order Height = Height ⑦ + 3~6"
  • Blind D (Right outer blind)Order Width = Width ④ + 3~6"Order Height = Height ⑧ + 3~6"

Still Unsure About Your Measurements?

We are here to help you get it right the first time. If you have any doubts about your door's unique shape, depth, or obstacles like handles, do not guess!

Take a clear picture of your door and email it to our expert team at support@aprilsmartblinds.com. We will review your setup and guide you with precise ordering instructions.

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