Each fiberglass safety ladder is fabricated from pultruded side rails and round rungs, assembled with mechanical fasteners—no field welding. The rung profile includes a bonded silica grit surface, providing a slip‑resistant grip even when wet. Standard rung spacing follows OSHA 1910.23 at 280 mm (11 in) on centre, and side rails are typically 50 × 50 mm square tube for a rigid, lightweight structure. Because the entire assembly is non‑metallic, there is generally no conductive path to ground; a single industrial fixed ladder can be bolted directly to a transformer bund wall or a clarifier tank without bonding jumpers or grounding cables.
Installation is straightforward. Pre‑drilled mounting brackets accept 316 stainless steel anchor bolts, and the ladder sections come in 3‑m and 6‑m lengths that connect with internal splice joints. A two‑person crew typically sets a 6‑m ladder against a concrete tank wall in under two hours. There is no hot work, no heavy lifting equipment, and generally no repainting after installation—the resin colour is integral through the laminate. Rungs are round tube approximately Ø 30 mm with an integrally bonded grit surface, and the clear width inside rails is commonly 410 mm (16 in). Load rating typically supports 150 kg (330 lbs) per rung, uniformly distributed. Weight is approximately 5 kg/m, about 30% of an equivalent steel ladder. Resin systems include isophthalic polyester as standard, with vinyl ester available for harsh chemical exposure. Fire performance generally achieves a flame spread index ≤ 25 when tested per ASTM E‑84.
For installations exceeding 6 m in height, a safety cage system is available, fabricated from the same corrosion‑resistant FRP profiles. The cage begins at approximately 2.2–2.5 m above the base and extends to the top platform guardrail height, with horizontal hoop rings spaced every 1.2–1.5 m and vertical flat‑bar stiffeners running the full cage length. Hoop rings are typically formed from 50 × 5 mm flat bar or Ø 12 mm solid rod, with an internal diameter of 700–750 mm. Vertical cage members use 40 × 5 mm or 50 × 5 mm flat bars, evenly spaced around the hoop perimeter. For related vertical access and platform safety solutions, see FRP Access Systems and FRP Platform Applications.
Standard Component Dimensional Parameters
Commonly available sectional dimensions for the principal structural components of pultruded FRP fixed ladders are listed below for reference. Custom lengths, cage configurations, and project‑specific compliance requirements are available on request.
| Component | Commonly Available Specification |
|---|---|
| Side Rail — C‑Channel | 100×35×6 mm, 100×50×6 mm, 125×50×6 mm, 150×50×8 mm |
| Side Rail — Square/Rectangular Tube | 50×50×5 mm, 75×50×6 mm |
| Side Rail — I‑Beam | 120×60×6 mm |
| Side Rail — Standard Length | 3 m, 6 m |
| Rung — Round Tube (Gritted) | Ø 25×2 mm, Ø 25×3 mm, Ø 30×3 mm, Ø 32×3 mm, Ø 38×3 mm |
| Rung Spacing | 280 mm (11 in) per OSHA 1910.23; 250–300 mm range available |
| Clear Width Inside Rails | 350–400 mm standard; 410 mm (16 in) common; 450 mm wide available |
| Cage Hoop Ring — Flat Bar | 40×5 mm, 50×5 mm |
| Cage Hoop Ring — Solid Rod | Ø 10 mm, Ø 12 mm |
| Cage Internal Diameter | 700–750 mm |
| Cage Vertical Stiffener — Flat Bar | 40×5 mm, 50×5 mm |
| Cage Start Height | 2.2–2.5 m above base |
| Wall Bracket Standoff | 200–250 mm |
| Base Plate — Square Flange | 150×150×10 mm, 200×200×12 mm with anchor bolt holes |
| Splice Plate (Rail Connection) | 300×150×8 mm FRP or 316 stainless steel |
| Design Load per Rung | 150 kg (330 lbs) uniform; 1,500 N (340 lbf) concentrated per OSHA 1910.23 |
Additional side rail sections, custom cage dimensions, and project‑specific anchorage details are available on request. For structural load data, OSHA compliance documentation, and chemical resistance verification, see the referenced ASTM E‑84 performance figure above and the ASTM Standards Summary.
Proven in Field
"We replaced every external steel ladder on the chemical storage tanks with FRP fixed ladders five years ago. The grounding checks stopped immediately, and the grit‑coated rungs are still providing safe footing—no rust, no repaints, and no lost‑time slips."
— Water Treatment Tank Cover & Access Upgrade
Request Ladder Specifications & Configuration Details
WayTong supplies FRP fixed ladders in standard 3‑m and 6‑m sections with OSHA‑compliant rung spacing and non‑conductive construction. Contact our technical desk for custom lengths, cage system options, and project‑specific anchorage details.
Request Product InformationThis fixed ladder integrates with the WayTong FRP Access Components portfolio alongside handrail systems, guardrails, and safety cages. For complete structural and fire performance data, see the ASTM Standards Summary.