Inside Mount: mounted within the window opening. Small deductions will be taken to ensure proper fit. For all light filtering colors you will need 3" minimum depth; for blackout colors you will need 10" minimum depth.
Please Note: The increased depth requirement on Blackout materials has to do with the amount of heat that can be trapped between the window and the back of the shade when the shade is completely closed. If the shade is too close to the window, excessive heat build-up can cause damage to the window and cause the shade to billow forward.