Clamp Spacing Can Make or Break Your Piping – PVC Support Distance & Installation Tips

One of the most overlooked details in PVC pipe installation is clamp spacing . Sagging or cracking pipes are often caused by insufficient support points . This article provides spacing guidelines based on pipe size and offers practical tips to extend the life of your PVC piping.     1. Why Clamp Spacing Matters PVC pipes have high thermal expansion and lower rigidity compared to metal. Without proper support, you may face: Mid-span pipe sagging Stress at joints, leading to leaks Bending or warping due to temperature changes 2. Recommended Clamp Spacing by Pipe Size Pipe Diameter (Nominal) Horizontal Run Vertical Run 13A ~ 25A (½" ~ 1") 1.0 ~ 1.2 m (3~4 ft) 1.5 ~ 1.8 m (5~6 ft) 32A ~ 50A (1¼" ~ 2") 1.2 ~ 1.5 m (4~5 ft) 1.8 ~ 2.0 m (6~6.5 ft) 65A+ (2½" or larger) 1.5 ~ 2.0 m (5~6.5 ft) 2.0 ~ 2.5 m (6.5~8 ft) * For hot water lines, reduce spacing...