Common sliding window sizes include 47.5 inches wide by 35.5 inches high and 48 inches wide by 48 inches high. Another common sliding window size is 48 inches wide by 36 inches high.
Sliding windows, also called gliding windows, range in size from 32 inches to 48 inches tall and 40 inches to 56 inches wide. Homeowners often use sliding windows that are wider than they are tall for panoramic views. They also commonly use sliding windows to replace standard windows in a house, so more symmetrical sizes are also popular. Another common sliding window size is a custom size. Many companies offer to tailor sliding window sizes to particular windows in a customer's house to ensure a proper fit.