// CODE SNIPPET
305.4 Interval of Support
JUMP TO FULL CODE CHAPTER
Piping shall be supported at distances not exceeding the spacing specified in Table 305.4, or in accordance with MSS SP-69.
TABLE 305.4
PIPING SUPPORT SPACINGa
PIPING MATERIAL | MAXIMUM HORIZONTAL SPACING (feet) | MAXIMUM VERTICAL SPACING (feet) |
ABS pipe | 4 | 10c |
Aluminum pipe and tubing | 10 | 15 |
Brass pipe | 10 | 10 |
Brass tubing, 11/4-inch diameter and smaller | 6 | 10 |
Brass tubing, 11/2-inch diameter and larger | 10 | 10 |
Cast-iron pipeb | 5 | 15 |
Copper or copper-alloy pipe | 12 | 10 |
Copper or copper-alloy tubing, 11/4-inch diameter and smaller | 6 | 10 |
Copper or copper-alloy tubing, 11/2-inch diameter and larger | 10 | 10 |
CPVC pipe or tubing, 1 inch and smaller | 3 | 10c |
CPVC pipe or tubing, 11/4-inch and larger | 4 | 10c |
Lead pipe | Continuous | 4 |
PB pipe or tubing | 22/3 (32 inches) | 4 |
PEX tubing | 22/3 (32 inches) | 10c |
Polypropylene (PP) pipe or tubing, 1 inch or smaller | 22/3 (32 inches) | 10c |
Polypropylene (PP) pipe or tubing, 11/4 inches or larger | 4 | 10c |
PVC pipe | 4 | 10c |
Steel tubing | 8 | 10 |
Steel pipe | 12 | 15 |
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
- See Section 301.18.
- The maximum horizontal spacing of cast-iron pipe hangers shall be increased to 10 feet where 10-foot lengths of pipe are installed.
- Mid-story guide.
Related Code Sections
305.4 General Regulations, Interval of Support
Piping shall be supported at distances not exceeding the spacing specified in Table 305.4, or in accordance with ANSI/MSS SP-58. TABLE 305.4 ...
2017 FBC - Mechanical, 6th edition > 3 General Regulations > 305 Piping Support > 305.4 Interval of Support
305.4 General Regulations, Interval of Support
Piping shall be supported at distances not exceeding the spacing specified in Table 305.4, or in accordance with MSS SP-69. TABLE 305.4 PIPING ...
2014 FBC - Mechanical, 5th edition > 3 General Regulations > 305 Piping Support > 305.4 Interval of Support
305.4 General Regulations, Interval of Support
Piping shall be supported at distances not exceeding the spacing specified in Table 305.4, or in accordance with ANSI/MSS SP-58. TABLE 305.4 ...
2020 FBC - Mechanical, 7th edition > 3 General Regulations > 305 Piping Support > 305.4 Interval of Support
308.5 General Regulations, Interval of Support
Pipe shall be supported in accordance with Table 308.5. Exception: The interval of support for piping systems designed to provide for expansion ...
2014 FBC - Plumbing, 5th edition > 3 General Regulations > 308 Piping Support > 308.5 Interval of Support
308.5 General Regulations, Interval of Support
Pipe shall be supported in accordance with Table 308.5. Exception: The interval of support for piping systems designed to provide for expansion ...
2017 FBC - Plumbing, 6th edition > 3 General Regulations > 308 Piping Support > 308.5 Interval of Support