Pipe Insulation by Pipe Size — Complete Sizing Guide

Pipe Insulation Size Guides

Select your pipe size below for a complete guide covering materials, wall thickness selection, BS 5422 compliance and installation advice.

Domestic Pipe Sizes

• 15mm Pipe Insulation — 15mm Guide — most common domestic heating and plumbing size
• 22mm Pipe Insulation — 22mm Guide — standard domestic heating main size
• 28mm Pipe Insulation — 28mm Guide — larger domestic and light commercial heating

Commercial Pipe Sizes

• 35mm Pipe Insulation — 35mm Guide — large domestic and light commercial heating mains
• 42mm Pipe Insulation — 42mm Guide — standard commercial heating mains and plant room pipework
• 54mm Pipe Insulation — 54mm Guide — large bore commercial heating and hot water distribution

Industrial & District Heating Pipe Sizes

• 76mm Pipe Insulation — 76mm Guide — district heating mains and large commercial systems
• 89mm Pipe Insulation — large bore industrial and district heating
• 114mm Pipe Insulation — large bore industrial and district heating mains

Browse All Sizes

Shop all pipe insulation by size — 15mm to 273mm

Related Guides

• What Thickness Pipe Insulation Do I Need?
• BS 5422 Pipe Insulation Thickness Guide
• How to Measure Pipe Insulation Size
• Copper Pipe Sizes Explained
• Part L Compliance for Pipe Insulation