Product Description
SF-40 Industrial Grade Color Poly/Powder-Coated Chain Link Posts & Framework — Thick-Wall, Color Finish
- Industrial wall class — Thicker than SF-20 and .065" residential for maximum rigidity and durability.
- Color poly/powder exterior — Factory color finish over a galvanized steel core for long-lasting appearance.
- Sleeve-joined top rail — SF-40 top rail is not swedged; use galvanized sleeves for continuous runs.
- Built for heavy duty — Ideal for tall fences, high winds, frequent traffic, and added loads (slats/screens/signage).
- Standard compatibility — Works with typical chain link fabric and fittings for streamlined installs.
- Meets ASTM F1043 and RR-F-191/3, Class 1, Grade B
- Minimum Yield Strength of 50,000 PSI
Our SF40 Poly Powder Coated Chain Link Fence Pipe provides the same high quality performance as our galvanized SF40 for commercial and industrial fence projects that require colored posts and framework. SF40 is available in black, brown, and green, and features a polyester powder coat that further protects against rust. This thick-walled pipe is perfect for almost any commercial chain link fencing application, from sports facilities to high-security installations. SF40 pipe makes up the "bones" of your chain link fence, including line posts, terminal posts, top and brace rails, and gate frames.
SF40 fence pipe is available in a variety of diameters and lengths; full lengths (21' and 24') can be cut down to size upon request. Full lengths of 1-5/8" SF40 are commonly used as top rail, while larger diameters are used for line, terminal, and gate posts.
For a cohesive system, pair with matching color-coated chain link fabric and (for continuous rails) galvanized rail sleeves.
Typical Sizing & Use
- Top/brace rail: often 1-5/8" OD on commercial/industrial runs.
- Line posts: commonly 2" nominal (1-7/8" actual) or 2-1/2" nominal (2-3/8" actual).
- Terminal posts (corners/ends/gates): frequently 3" nominal (2-7/8" actual) where higher loads are expected.
SF-40 Wall Thickness & Gauges (by OD)
| 1-5/8" OD (1.660") | 0.111" wall — 11 ga |
| 1-7/8" OD (1.900") | 0.120" wall — 11 ga |
| 2-3/8" OD (2.375") | 0.130" wall — 10 ga |
| 2-7/8" OD (2.875") | 0.160" wall — 8 ga |
| 3-1/2" OD (3.500") | 0.160" wall — 8 ga |
| 4" OD (4.000") | 0.160" wall — 8 ga |
Specifications
| Material | Galvanized steel tube with color poly/powder coating (industrial framework) |
| Wall Class | SF-40 (thicker than SF-20 / .065" residential) |
| Rail Joining | Non-swedged; use galvanized sleeves for continuous runs |
| Applications | Industrial/commercial posts, top/brace rails, welded gate frames |
Installation Notes
Set terminals first, then line posts per layout. Join SF-40 top rail with galvanized sleeves to create continuous runs. Square, plumb, and brace before stretching fabric to tension bars; secure with correctly sized bands, rail ends, and caps.
Buying Guide
- When to choose SF-40 — Tall fences, high wind exposure, frequent traffic, and added loads (slats, screens, signs).
- Match diameters to load — Larger ODs at terminals/gates handle stretch and hardware loads; lighter ODs can serve rails.
- Finish selection — Coordinate framework color with fabric and fittings for a unified look.
Pipe longer than 10' 6" can’t ship via standard LTL and needs a custom freight quote. For a fast quote, email info@signetfence.com.
For small orders (amount varies by ship-to location, but typically under ~100 pcs), brokered flatbed rates can be high. If you’re building continuous top rail, use 10' 6" lengths joined with galvanized rail sleeves.
Frequently Asked Questions
- Is SF-40 the same as Schedule 40 pipe?
- No. Schedule 40 (Sch40) has a thicker wall than SF-40 at the same OD (for example, 2-3/8" Sch40 is ~0.154" wall vs. SF-40 at ~0.130"). Choose Sch40 only if your specifications require it.
- Do you offer swedged top-rail in SF-40?
- No. SF-40 top rail is not available swedged; use galvanized sleeves to join lengths.
- Can I weld this framework for gate frames?
- Yes. SF-40 tubing is commonly used for welded and fitted commercial/industrial gate frames. Match OD to your hinge/latch hardware.
Comparison
- .065" Color Poly-Coated — Residential wall for standard home fences.
- SF-20 — Heavier commercial wall; a step up from .065" for taller runs or moderate wind/loading.
- SF-40 (this product) — Industrial wall with the thickest color-coated framework in our SF lineup.
SF-20 vs. SF-40 — Wall Thickness & Gauge (Common ODs)
| Outside Diameter (OD) | SF-20 Wall / Gauge | SF-40 Wall / Gauge |
| 1-5/8" OD (1.660") | 0.085" — 13 ga | 0.111" — 11 ga |
| 1-7/8" OD (1.900") | 0.090" — 13 ga | 0.120" — 11 ga |
| 2-3/8" OD (2.375") | 0.095" — 13 ga | 0.130" — 10 ga |
| 2-7/8" OD (2.875") | 0.110" — 11 ga | 0.160" — 8 ga |
Notes: SF-20 is often available down to 1-3/8" OD (0.080" wall, 14 ga). SF-40 typically adds larger ODs such as 3-1/2" and 4" (both ~0.160" wall, 8 ga). SF-40 top rail is not swedged; join with galvanized sleeves.
