Cut The Bottom track to the right length. Make use of a great-toothed hacksaw to trim the metal piece to match the measurement of the threshold. Use the plastic wall anchors to safeguard the floor. Be sure to use the proper beam measurement matching your screws, to prevent any fallout. https://directory-fast.com/listings731047/the-single-best-strategy-to-use-for-glass-shower-door-installation-in-needham-ma