Installation: Inside Mount vs Outside Mount - Blind Spot
HWBB Small Wooden Venetian Blinds Shades, Easy Fit Blackout Wall Mounted Flat Slat, Windows Side Door Outside or Inside Mount, for Kitchen, Bedroom (Size : 115cmx160cm/44.85inx63in) : Amazon.co.uk: Home & Kitchen
How to Measure for Outside-Mount Window Blinds
Explore Our Range of Vertical Blinds | Blind Technique