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Calculate blind width and height for inside or outside mount installations. Get overlap guidance, mounting depth reminders, and practical sizing outputs before ordering custom blinds.
Last updated: April 14, 2026
Comparing with curtains too?Try Curtain Size Calculator
Recommended Blind Size
35.6 x 60.0 in
Estimated Stack Height
7.2 in
Minimum Mount Depth
2.3 in
Fit Note
Inside mount gives a clean built-in look but requires enough frame depth.
Installation Tips
Inside mounts look minimal; outside mounts usually provide stronger privacy and blackout potential.
Side overlap helps hide frame imperfections and reduces stray daylight near blind edges.
Check frame depth and hardware clearance to avoid ordering blinds that cannot mount flush.
For a 36 x 60 in window with inside mount:
Blind Width
35.6 in
Blind Height
60.0 in
Min Depth
2.3 in
The calculator converts your window measurements into mount-specific blind sizes. Inside mount applies a fit deduction, while outside mount adds overlap for better coverage and light management.
Inside Width = Opening Width - deductionOutside Width = Opening Width + (2 x overlap)Outside Height = Opening Height + overlapShare it with anyone measuring windows for new blinds.
Suggested hashtags: #WindowBlinds #HomeImprovement #InteriorDesign #WindowTreatment #Calculator