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B-215
Technical Information
Metal Framing & Cable Tray — Superstrut
®
Metal Framing System
Table 9 — Maximum Spacing between Pipe Supports
Steel Pipe
Nom. Pipe Size (IN.)
1
⁄2
3
⁄4 1 1
1
⁄2 2 2
1
⁄2 3 3
1
⁄2 4 5 6 8 10 12 14 16 18 20 24
Max. Spacing (FT.) 5 6 7 9 10 11 12 13 14 16 17 19 22 23 25 27 28 30 32
Copper Size
Nom. Pipe Size (IN.)
1
⁄2
3
⁄4 1 1
1
⁄4 1
1
⁄2 2 2
1
⁄2 3 3
1
⁄2 4
Max. Spacing (FT.) 5 6 6 7 8 9 10 10 11 12
Table 10 — Minimum Spacing (IN.) between Centers of Standard Pipe When Using Superstrut #702 Pipe Straps
NOM. PIPE
SIZE
1
⁄2
37
⁄64 1 1
1
⁄4 1
1
⁄2 2 2
1
⁄2 3 3
1
⁄2 4 5 6 8
1
⁄2 1
3
⁄16 — — — — — — — — — — — —
3
⁄4 1
5
⁄16 1
7
⁄16 — — — — — — — — — — —
1 1
1
⁄2 1
5
⁄8 1
3
⁄4 — — — — — — — — — —
1
1
⁄4 1
3
⁄4 1
7
⁄8 2 2
1
⁄4 — — — — — — — — —
1
1
⁄2 1
15
⁄16 2
1
⁄16 2
3
⁄16 2
7
⁄16 2
9
⁄16 — — — — — — — —
2 2
3
⁄16 2
5
⁄16 2
1
⁄2 2
3
⁄4 2
7
⁄8 3
1
⁄8 — — — — — — —
2
1
⁄2 2
7
⁄16 2
9
⁄16 2
3
⁄4 3 3
1
⁄8 3
1
⁄8 3
5
⁄8 — — — — — —
3 2
13
⁄16 2
15
⁄16 3
1
⁄16 3
5
⁄16 3
7
⁄16 3
3
⁄4 4 4
5
⁄16 — — — — —
3
1
⁄2 3
1
⁄8 3
1
⁄4 3
1
⁄8 3
5
⁄8 3
3
⁄4 4
1
⁄16 4
5
⁄16 4
5
⁄8 4
15
⁄16 — — — —
4 3
7
⁄16 3
9
⁄16 3
15
⁄16 4
1
⁄16 4
1
⁄8 4
5
⁄8 4
15
⁄16 5
1
⁄4 5
9
⁄16 — — — —
6 4
3
⁄4 4
7
⁄8 5 5
1
⁄4 5
1
⁄8 5
1
⁄8 5
7
⁄8 6
3
⁄16 6
1
⁄2 6
3
⁄16 7
7
⁄16 8
1
⁄8 —
8 5
7
⁄16 6 6
1
⁄8 6
1
⁄8 6
1
⁄2 6
3
⁄4 7 7
5
⁄16 7
5
⁄8 8 8
9
⁄16 9
1
⁄4 10
1
⁄8
Table 7 — Load Carrying Capacities
of Hot-Rolled Steel Rod
DIMENSIONS (IN.) — LOADS
NOMINAL ROD DIA. ROOT AREA THREAD
1
⁄8 .068
1
⁄2 .126
5
⁄8 .202
3
⁄4 .302
7
⁄8 .419
Safety factor of 5.
Table 8 — Rod Size Determined
by Pipe Size for Fire Protection
DIMENSIONS (IN.) — LOADS
NOMINAL ROD DIA. ROOT AREA THREAD
3
⁄4 to 2
1
⁄8
2
1
⁄2 to 3
1
⁄2
1
⁄2
4 to 5
5
⁄8
6
3
⁄4
8 to 12
7
⁄8
Safety factor of 5.