Hanger Support Spacing and Rod Size for Horizontal Pipes

Recommended maximum support span between hangers - and rod sizes for straight horizontal pipes

Recommended maximum space between hangers for straight horizontal pipes and tubes can be found in the table below. The values does not apply where loads are concentrated with flanges, valves, specialties, etc. A common rule of thumb is to support load of this type with hangers on both sides of the load.

Nominal Diameter Pipe
NPS
(inches)
Recommended maximum space between Hangers (feet) Recommended Rod Size (inches)
Standard Steel Pipe Copper Tube
Water Steam Water Copper Stainless Steel
1/2 7 8 5 3/8 3/8
3/4 7 9 5 3/8 3/8
1 7 9 6 3/8 3/8
1 1/2 9 12 8 3/8 3/8
2 10 13 8 3/8 3/8
2 1/2 11 14 9 1/2 1/2
3 12 15 10 1/2 1/2
4 14 17 12 1/2 5/8
6 17 21 14 5/8 3/4
8 19 24 16 3/4 3/4
10 22 26 18 3/4 7/8
12 23 30 19 3/4 7/8
14 25 32 1
16 27 35 1
18 28 37 1
20 30 39 1-1/4
24 32 42     1-1/4
  • 1 ft (foot) = 0.3048 m

Maximum spacing pipe supports

Related Topics

  • Dimensions - Sizes and dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more

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