Chauvet Professional CT290-4390C — 3-Way 90° Truss Corner Block (290mm)

The Chauvet Professional CT290-4390C is a 3-way (90° "book" or "corner") truss block for 290mm square truss systems — the corner component that lets you build 3D truss structures, A-frames, goalposts, and stage arches from straight truss sections.

What it does: A 3-way corner has three open ends, each accepting a standard 290mm truss section via conical couplers. Used to turn 90° corners horizontally (rectangular truss frame around a stage) or to transition vertical-to-horizontal (the corner at the top of an A-frame or goalpost).

Specifications:

• Cross-section: 290mm box truss compatible
• 3 connection points (90° angles)
• Material: 6061-T6 aluminum (corrosion-resistant)
• Standard conical coupler interface — compatible with other 290mm truss systems

How it's used in rigging: Combined with straight truss sections (1m, 2m, 3m), base plates, and chain motors to build complete stage truss systems. A typical 4-leg goalpost uses 4 vertical truss sections + 4 "book" corners + horizontal cross-section truss across the top. AV integrators and event production crews keep these in stock for rapid stage build-out.

Important: All truss installation must follow proper load calculations and rigging practices. Manufacturer's load tables specify maximum loading.

Ideal for: Touring lighting designers, AV rental companies, fixed install venues (theaters, churches, conference centers), and event production crews building modular stage structures.