Florence hardware is available from 24 - 96" wide. Inside mount hardware has a maximum width of 48". This hardware has a 2” diameter. Rods are usually ordered up to 4" wider than the window opening on each side. The width you specify on your order does not include the width of the finials. Finials add 1 1/8" to 6" on each end, depending upon the style, see Finial Tips for specific measurements.