Product Description
EVT12S-4IN | 4-Inch Aluminum Truss Spacer (12×12 Box Truss Plated)
The EVT12S-4IN Aluminum Truss Spacer is a precision-manufactured 4-inch structural spacer designed specifically for 12-inch square end-plated aluminum truss systems. Manufactured from high-quality 6061-T6 aluminum alloy, this component provides controlled spacing between truss sections, allowing riggers to achieve exact linear dimensions while maintaining proper alignment and load continuity within the grid. Whether you’re fine-tuning a touring lighting rig to hit exact venue dimensions, aligning an overhead grid to specific hang-point spacing, or bridging the gap between standard truss lengths and a convention hall booth footprint, the EVT12S-4IN delivers the precise 4-inch adjustment that standard 5ft, 8ft, and 10ft sections cannot.
Function & Compatibility:
Unlike conical systems, the EVT12S series utilizes an industry-standard nut-and-bolt end-plate connection. This spacer features a rigid square profile that matches the geometry of standard 12″ box truss, ensuring a seamless structural transition. It is the ideal solution for fine-tuning truss lengths in touring rigs, lighting grids, LED and video wall support frames, and trade show displays where modular precision is required.
Key Features
- Precise Extension: Adds exactly 4 inches to the truss run — critical for video wall support structures where frame dimensions must match exact pixel-pitch panel layouts, and for modular booth builds that must hit exact floor plan dimensions.
- Included Hardware: Ships complete with 4x Grade 8 Bolts, Nuts, and Washers for immediate, high-strength assembly.
- Heavy-Duty Construction: Fabricated from 6061-T6 Aluminum Alloy for superior strength-to-weight ratio — adds dimensional precision without adding unnecessary weight to the span.
- End-Plated Design: Compatible with EVT12S and other standard 12-inch plated truss systems using bolt connections.
- TÜV Specifications: Fabricated in accordance with strict TÜV manufacturing standards — meets the engineering-grade certification that rigging and structural engineers require when spec’ing truss into professional drawings.
- Professional Finish: Clean aluminum surface integrates seamlessly with standard silver trussing.
Who It’s For
- Staging & Event Production Riggers — Your venue is 23’4″ wall to wall and your truss inventory is all 5ft and 8ft sticks. You need exactly 4 inches to close the span without cutting aluminum or shimming with clamps. This is that piece.
- Lighting Grid Designers & Integrators — You’re hanging a lighting grid and the rigging points are fixed to the building steel. The total truss run has to land dead-on to those pick points — not close, not “about right.” The EVT12S-4IN gives you the final adjustment to line up your grid perfectly.
- LED & Video Wall Framers — Your video wall frame dimensions are dictated by the pixel-pitch panel layout. One inch off and you get visible seams between panels. This spacer lets you match the truss frame to the exact panel array without compromise.
- Trade Show & Exhibit Builders — The convention hall floor plan says 10×20 and your booth build has to hit that number exactly. Standard truss lengths get you close — the 4-inch spacer gets you there.
- Rental & Staging Companies — You stock spacers in 4in, 6in, 12in, and 24in so your crew can build any client’s custom rig dimensions from standardized inventory. The 4-inch is the smallest precision piece in the kit and the one that gets grabbed when nothing else fits.
- Rigging & Structural Engineers — You’re spec’ing truss into engineered drawings where dimensions are non-negotiable. TÜV-standard fabrication and Grade 8 hardware mean this component belongs on a professional structural plan, not just a shop build.
- Motion Capture & Industrial Truss Users — If you’re building with 12-inch square aluminum truss outside of live events — motion capture volumes, industrial overhead systems, permanent installations — the same dimensional precision applies. This spacer fits the application.
Designed by Evolve Truss, the EVT12S-4IN delivers the reliability and structural consistency demanded by professional production environments.
⚠️ Safety & Engineering Notice
❗ Structural Warning: Adding a spacer to a truss run does NOT increase the overall load capacity of the span. The allowable load is determined by the total span length and the weakest component. Do not support loads directly from the spacer connection points.
Important Guidelines for Safe Use:
- Inspect the end plates and bolt holes for deformation or wear before every use.
- Ensure all Grade 8 bolts are properly torqued to manufacturer specifications.
- Do not mix truss components from different manufacturers unless the bolt pattern and plate dimensions have been strictly verified.
- The purchase of this product does not authorize specific installations; a licensed professional engineer shall review all structures, lighting plots, or other aluminum truss uses.
⚠️ Compatibility Warning for Mixed-Brand Builds
Crucial Steps for Safe Assembly:
- Verify Bolt Patterns: Plated truss varies by manufacturer. Compare your existing truss plate dimensions against EVT12S specifications before purchase.
- Check Alignment: Ensure chord alignment is precise to prevent uneven loading on the bolts.
- Mixing incompatible plated truss can lead to structural failure.
Why Choose Truss Genius?
✅ Certified Quality & Expert Support
- Authorized Dealer: Direct partnerships with trusted truss manufacturers.
- Expert Guidance: Real-world experience in staging, rigging, and system planning.
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- Transparent pricing policy (prices and promotions subject to change).
Experience the Truss Genius Difference
Trusted by staging professionals nationwide, Truss Genius delivers certified components, expert guidance, and a seamless purchasing experience.
Contact us today to optimize your rig layout with the EVT12S-4IN Aluminum Truss Spacer.

