Aluminum Truss 300x300 Factory Price: Understanding Specifications and Choosing Your Model

October 16, 2026

Aluminum Truss 300x300 Factory Price: What the Professional Buyer Needs to Know

The aluminum truss 300x300 is a very common format in the event industry: stage structures, goalposts, light bridges, stands. Behind the name "300x300" actually lie several product families with very different performances. Before talking about factory price, it is therefore necessary to understand what is being purchased. This article explains the technical criteria to check and how to read the load tables provided by the manufacturer.

1. "300x300" Does Not Designate a Single Product

A 300x300 truss corresponds to a square section of approximately 300 mm per side. But within this same envelope, there are distinct designs:

Square truss with 4 main tubes: the most rigid, suitable for long spans and heavy loads.
Triangular truss: three main tubes, lighter, often used for light bridges and suspended structures.
Ladder truss: two main tubes connected by rungs, reserved for modest loads and short spans.

The factory price directly depends on this design, the diameter and thickness of the tubes, as well as the number of available length codes.

2. Material: 6082/6061-T6

All models presented here are made of 6082/6061-T6 alloy. The "T6" refers to the heat treatment that gives aluminum its mechanical strength. This is a point to systematically verify: a truss made of untreated alloy does not offer the same performance.

3. Reading a Load Table: The Essential Step

A load table gives, for each span, the distributed load (kg/m) and the point load (kg). These values are tested according to TÜV factory data. They are not interchangeable: a point load of 500 kg over 4 m does not mean that 500 kg can be suspended in the middle of a 4 m span without taking into account the distribution and supports.

Let's take a concrete example with the WRS-29 Square Truss (product sheet):

Span (m)	Distributed Load (kg/m)	Point Load (kg)
1	1942	1942
2	976	1899
3	658	1766
4	488	1466
5	392	1150
6	317	948

We can see that capacity drops rapidly with span. This is why choosing a truss is never done "by feel": it is done based on the specifications (span, load, number of attachment points).

4. Comparing Available 300x300 Models

Here are the main references in the range, with their actual characteristics.

WRS-29 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 25x2 mm; diagonals: 20x2 mm
Lengths: WRS-29-050 (50 cm) to WRS-29-400 (400 cm)
Loads: see table above

WRS-30 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 25x2 mm; diagonals: 20x2 mm
Lengths: WRS-30-050 (50 cm) to WRS-30-400 (400 cm)
Loads: identical to WRS-29 (1 m: 1942 kg/m distributed, 1942 kg point; 6 m: 317 kg/m, 948 kg)

WRS-40 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 30x2 mm; diagonals: 25x2 mm
Lengths: WRS-40-050 (50 cm) to WRS-40-400 (400 cm)
Loads: 3 m: 936 kg/m, 718 kg point; 8 m: 176 kg/m, 560 kg

WRS-4060 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 50x2 mm; diagonals: 30x2 mm
Lengths: WRS-4060-050 (50 cm) to WRS-4060-400 (400 cm)
Loads: 4 m: 805 kg/m, 1610 kg point; 9 m: 210 kg/m, 945 kg

WRS-52 520x520 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 50x2 mm; diagonals: 25x2 mm
Lengths: WRS-52-050 (50 cm) to WRS-52-400 (400 cm)
Loads: 7 m: 460 kg/m, 1255 kg point; 12 m: 164 kg/m, 782 kg

WRS-5060 500x600 Square Truss (link)

Main tubes: 50x3 mm; sub-tubes: 50x2 mm; diagonals: 30x2 mm
Lengths: WRS-5060-050 (50 cm) to WRS-5060-400 (400 cm)
Loads: 4 m: 805 kg/m, 1610 kg point; 9 m: 210 kg/m, 945 kg

Note: the 520x520 and 500x600 models are not strictly 300x300, but they belong to the same square truss family and are often compared when a project requires longer spans.

5. Other Geometries: Triangle and Ladder

WRT-29 Triangle Truss (link)

Main tubes: 50x3 mm; sub-tubes: 30x2 mm; diagonals: 20x2 mm
Lengths: WRT-29-050 (50 cm) to WRT-29-400 (400 cm)
Loads: 3 m: 371 kg/m, 557 kg point; 8 m: 67 kg/m, 268 kg

WRF-29 Ladder Truss (link)

Main tubes: 50x3 mm; sub-tubes: 25x2 mm; diagonals: 20x2 mm
Lengths: WRF-29-050 (50 cm) to WRF-29-300 (300 cm)
Loads: 1 m: 990 kg/m, 990 kg point; 6 m: 26 kg/m, 10 kg

The ladder truss is significantly less performant over long spans: at 6 m, the point load drops to 10 kg. It is therefore reserved for light and short uses.

6. What Really Influences the Factory Price

Without giving prices, here are the factors that vary the price of an aluminum truss 300x300 purchased from the factory:

The amount of material: the thicker and more numerous the tubes, the higher the cost. A WRS-4060 (sub-tubes 50x2 mm) is structurally more expensive than a WRS-29 (sub-tubes 25x2 mm).
The number of codes: a complete range from 50 cm to 400 cm involves more references to manage.
The end fittings: spigot systems require precision machining.
Certification: a manufacturer certified to TÜV Rheinland and ISO 9001:2015 incurs quality control costs that are reflected in the price, but secure the buyer.
Order volume: buying directly from the factory eliminates intermediaries, but the unit price depends on volume.

7. Sourcing Tips

Request the official load tables for each reference considered. A serious supplier provides them.
Check the material: 6082/6061-T6, not just a mention of "aluminum".
Check the tolerances of the end fittings: poor fit complicates assembly.
Plan for compatibility: lengths and end fittings must match your existing stock.
Go through a certified manufacturer: TÜV Rheinland and ISO 9001:2015 are objective benchmarks.

FAQ

Q: What is the difference between a 300x300 truss and a 400x400 truss? A: The section. A 400x400 generally offers better strength over long spans, but it is heavier and bulkier. The choice depends on the intended span and load.

Q: Can I use a ladder truss for a 6 m light bridge? A: According to the WRF-29 data, at 6 m the point load is 10 kg and the distributed load is 26 kg/m. This is very low. For a 6 m light bridge, a triangular or square truss is more appropriate.

Q: Are factory prices really lower? A: Buying directly from the factory eliminates distributor margins. The final price, however, depends on volume, options, and transport. Request a detailed quote.

Q: What certifications should be checked? A: TÜV Rheinland for load testing and ISO 9001:2015 for the quality system. These two elements are reliable indicators.