Slate Blackout Roller Shades

Inside Mount: Measure The Width

1. Measure the top width inside the window frame.
2. If your result is 1/16" or 1/32" (e.g., 24 9/16"), round down to the nearest 1/8" (e.g., 24 1/2"). No rounding needed if it’s already a 1/8" increment (e.g., 24 3/8").
3. For splayed/recessed frames, use the shortest width (measure multiple spots if needed).
4. This is your order width (order exact size—no deductions; factory deducts ~1/4" for fit).

Inside Mount: Measure The Height

1. Measure the middle height inside the window frame (for accuracy).
2. If your result is 1/16" or 1/32" (e.g., 24 9/16"), round up to the nearest 1/8" (e.g., 24 5/8"). No rounding needed if it’s a 1/8" increment (e.g., 24 1/2").
3. Add 4 inches to the measured height (for optimal appearance).
4. This is your order height.

Inside Mount: Depth Requirement

Please confirm your window depth> 2 inch.

Outside Mount: Measure The Width

1. Measure the window frame width (or desired shade width).
2. Add 3–6 inches (7.6–15.2 cm) to the measurement (for full coverage/light blockage).
3. This is your order width (includes valance).

Outside Mount: Measure The Height

1. Measure from top to bottom (desired shade height).
2. Add 3–6 inches (7.6–15.2 cm) to the measurement (for full coverage/light blockage).
3. This is your order height (includes valance).

Head rail specifications
Choose the best suitable style for inside mounting.

Classic

Minimum depth for secure inside mount: 2 inches ；Minimum depth for flush inside mount: 3.5 inches；Minimum wall width for outside mount: 1.6 inches

Elegant
Minimum depth for secure inside mount: 2 inches；Minimum depth for flush inside mount: 3 inches；Minimum wall width for outside mount: 1.6 inches

Please Note:

We’ll handle all necessary deductions—do not make your own deductions(no adding/subtracting from your measurements).

View How to Measure here.