Guardrails & Railings
The full guardrail family: excavation edge, zinc-steel perimeter, road, PVC, movable, slab-edge, crowd-control and planter railings, with the published specification for each.
View rangeW-beam steel road guardrail
Corrugated beam panels bolted to steel posts as a roadside or median barrier. The manufacturer's published specification cites the Ministry of Transport industry standard JT/T 281—2007 for highway corrugated-beam steel guardrail panels: 4320 mm panel length, 4 m post spacing, twin-wave 310 mm wide and triple-wave 505 mm wide with an 85 mm wave height.
W-beam steel road guardrail — corrugated beam panel and post system
JT/T 281—2007
Twin-wave beam
Triple-wave beam
85 mm wave height
3 mm / 4 mm plate
250 panels per km
4 m post spacing
A W-beam steel road guardrail is a corrugated steel beam panel bolted to a line of steel posts, so that a vehicle striking it is guided along the beam rather than through it. The system is the standard roadside and median barrier for highways and expressways in China, and the manufacturer's published specification for it cites the Ministry of Transport industry specification JT/T 281—2007《高速公路波形梁钢护栏板》. Each panel is 4320 mm long, which leaves a net 4 m between posts once the panels are lapped and bolted, and the posts are set at that same 4 m spacing.
Two beam widths are published. The twin-wave (two-wave) beam is 310 mm wide with an 85 mm wave height and is made in 3 mm or 4 mm plate; the triple-wave (three-wave) beam is 505 mm wide with the same 85 mm wave height, is made in 4 mm plate, and is used with a 130 × 130 mm square-tube post. Posts are Φ114 mm or Φ140 mm with a 4.5 mm wall, normally 1.85 m, 1.95 m, 2.00 m or 2.15 m long depending on the requirement and on how the post is set in the ground.
The manufacturer states that the panels have good corrosion resistance and are resistant to ageing. The figures below are the published specification for the standard section; because highway standards differ from country to country, tell us the standard your project follows and we confirm in writing what we can supply.
- Standard cited by the manufacturer: JT/T 281—2007《高速公路波形梁钢护栏板》, Ministry of Transport industry specification for highway corrugated-beam steel guardrail panels.
- Panel length 4320 mm, net 4 m after installation; post spacing 4 m.
- Twin-wave beam: width 310 mm, wave height 85 mm, plate thickness 3 mm or 4 mm.
- Triple-wave beam: beam width 505 mm, wave height 85 mm, plate thickness 4 mm, used with a 130 × 130 mm square-tube post.
- Posts: Φ114 mm or Φ140 mm, wall thickness 4.5 mm, length normally 1.85 m / 1.95 m / 2.00 m / 2.15 m depending on the requirement.
- Standard section per kilometre: 250 guardrail panels, 250 posts, 2 end terminals, 250 post caps, 250 spacer blocks, 250 connector bolt sets and 2000 splicing bolt sets.
- Manufacturer's stated characteristics: good corrosion resistance and resistance to ageing.
- For a project on AASHTO, EN or another national standard: tell us the standard and we confirm in writing what we can supply.
Full specification
W-beam steel road guardrail — specification summary
Every row below is the figure published by the manufacturer for this system. Where a project follows AASHTO, EN or another national specification, the panel, post and accessory build is confirmed in writing against that standard before production.
| Product / model reference | W-beam steel road guardrail — corrugated beam guardrail, panel and post system. |
|---|---|
| Standard cited | JT/T 281—2007《高速公路波形梁钢护栏板》 — Ministry of Transport industry specification for highway corrugated-beam steel guardrail panels (as cited by the manufacturer). |
| Panel length | 4320 mm overall, net 4 m after installation. |
| Post spacing | 4 m. |
| Twin-wave (two-wave) beam | Width 310 mm, wave height 85 mm, plate thickness 3 mm or 4 mm. |
| Twin-wave theoretical mass | 49.16 kg for the 3 mm panel; 65.44 kg for the 4 mm panel. |
| Twin-wave mass per kilometre | 12.3 t at 3 mm plate; 16.388 t at 4 mm plate. |
| Triple-wave (three-wave) beam | Length 4320 mm, beam width 505 mm, wave height 85 mm, plate thickness 4 mm, theoretical mass 102 kg. |
| Triple-wave post | Used with a 130 × 130 mm square-tube post. |
| Post section | Φ114 mm or Φ140 mm round post, wall thickness 4.5 mm. |
| Post length | Normally 1.85 m / 1.95 m / 2.00 m / 2.15 m depending on the requirement. |
| Post theoretical mass | 12.15 kg/m for Φ114 mm; 15.04 kg/m for Φ140 mm. |
| Quantity per kilometre (standard section) | 250 guardrail panels; 250 posts at 4 m spacing; 2 end terminals; 250 post caps; 250 spacer blocks (防阻块); 250 connector bolt sets; 2000 splicing bolt sets. |
| Manufacturer's stated characteristics | Good corrosion resistance; resistant to ageing. |
| Assembly | Panels are lapped and bolted to the posts with the connector and splicing bolt sets; the spacer block sits between post and beam. Posts, post caps, end terminals, spacer blocks and bolt sets are supplied as one system. |
| Packing | Panels and posts are bundled and palletised for container loading; the exact packing method is confirmed per specification with the loading plan. |
| Price | Price: quoted per order — FOB Wuhan / Shanghai, CIF or DDP |
| MOQ | Confirmed per specification — send the drawing, quantity and destination port and we reply with MOQ, loading plan and lead time within one business day. |
| Loading | Confirmed per specification — send the drawing, quantity and destination port and we reply with MOQ, loading plan and lead time within one business day. |
| Lead time | Confirmed per specification — send the drawing, quantity and destination port and we reply with MOQ, loading plan and lead time within one business day. |
| Documentation | Proforma invoice, commercial invoice, packing list and certificate of origin as required. Buyers who need CE / EN / ASTM documentation: tell us the standard and we will confirm in writing what we can supply. |
Reading the specification
What these numbers mean for your order
The published figures are the starting point for a guardrail enquiry. Here is how they translate into a quotation.
Panel length and post spacing are the load-bearing basics
The 4320 mm panel and the 4 m post spacing together fix how the barrier behaves: the beam spans post to post at 4 m, and the panel length is what makes that span work with a 4 m net gap once the panels are lapped and bolted. When you give us a run length, those two figures are what turn it into a count of panels and posts.
Twin-wave or triple-wave
Both beams are 4320 mm long with an 85 mm wave height. The twin-wave beam is 310 mm wide and can be supplied in 3 mm or 4 mm plate; the triple-wave beam is 505 mm wide in 4 mm plate and goes onto a 130 × 130 mm square-tube post rather than a Φ114 / Φ140 mm round post. The wider beam covers more of the wheel path and a stiffer post is used with it, so the choice follows the road class, the traffic mix and the standard your project follows.
Why the mass figures matter for freight
Steel barrier is heavy for its volume, so a container load is limited by weight long before it is limited by space. The published masses — 49.16 kg per 3 mm twin-wave panel and 65.44 kg per 4 mm panel, 102 kg per triple-wave panel, 12.15 kg/m for Φ114 mm post and 15.04 kg/m for Φ140 mm post, and 12.3 t or 16.388 t of beam per kilometre — tell you what a kilometre of barrier weighs before posts and accessories are added, and therefore what the freight will cost. Send us the run length and the destination port and we build the loading plan on those figures.
Working to AASHTO, EN or your national standard
The figures here are published against the Chinese industry specification JT/T 281—2007. If your project is specified to AASHTO, EN or another national standard, the beam profile, plate thickness, post section, hole pattern and accessory set may differ. Tell us the standard you follow and we will confirm in writing what we can supply against it.
Packing & shipping
How W-beam road guardrail reaches your site
Panels, posts and accessories shipped as one programme — bundled, labelled and loaded to the loading plan agreed for the order.
Export packing
Guardrail panels are stacked and steel-banded into bundles; posts, post caps, spacer blocks, end terminals and bolt sets are bundled and bagged separately. Every bundle carries the panel type, the post section and the drawing reference, and the packing method is confirmed per specification on the packing list.
Loading plan
Confirmed per specification — send the drawing, quantity and destination port and we reply with MOQ, loading plan and lead time within one business day. Steel barrier loads are limited by weight rather than by volume; give us the container size, the beam type and the maximum bundle weight you can unload and we plan to it.
Documents & terms
We issue the proforma invoice, commercial invoice, packing list and certificate of origin. Documentation against a named standard is confirmed in writing per order. Payment terms and warranty are agreed per order and stated on the proforma invoice.
Related products
Usually quoted with W-beam road guardrail
Wire Mesh Fencing
The mesh family for the same roads: double-wire, chain-link, peach-post, framed, highway, railway, airport, sports court, school, anti-glare, bridge, temporary mesh fence and noise barrier.
View range
Hoarding & Site Fencing
Municipal and colour-steel hoarding, PVC and perforated panels, temporary fencing, water-filled barriers, high-rise project hoarding, site gates and shelters.
View rangeSend the drawing or the standard you follow
Tell us the run length, whether the barrier is roadside or median, the twin-wave or triple-wave beam and plate thickness you need, the post section and length, the accessory set and the destination port. We reply within one business day with the panel and post build, the quantity, the loading plan and the lead time.