Bedrooms
Outside overlap, side channels, or drapery can manage the perimeter glow common with inside mounts.

The essential details
A strong fit
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Specification notes
Measure available depth and overlap before selecting fabric.
Side and sill details add performance but also visible hardware.
Drapery can add softness and improve coverage where architectural channels are not desired.
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For commercial projects
Specifying this for an office, school, healthcare, or hospitality project? Commercial blackout shades
From the journal
Product Comparisons · 6 min
Product Comparisons · 6 min
Planning & Care · 8 min
Frequently asked
The fabric is opaque, but an inside-mounted treatment needs operating clearance at its edges.
Either can work; shades are compact, while side panels may improve edge coverage and soften the room.
Opaque film permanently blocks the view and is not an adjustable substitute for a room-darkening treatment.
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