I had accidentally ordered outside mounts instead of inside for our set of 3 cellular shades. SelectBlinds customer service graciously looked into what could be done in case the blinds wouldn't fit inside the windows as we'd planned. They found that the manufacturer would cut them down for a fraction of the cost of new blinds. Fortunately, the blinds fit inside the windows, we couldn't be happier with them, they work wonderfully well (cordless).