EVT12S-1½FT

Product Description

EVT12S-1½FT — 1.5-Foot Aluminum Truss Section — 12-Inch Square End-Plate Bolt Truss with Full Diagonal Bracing

The EVT12S-1½FT Aluminum Truss Section is a fully braced 1.5-foot (18-inch) structural segment for 12-inch square end-plate bolt truss systems — sitting between the 1-foot spacer and the standard 2-foot section in the EVT12S lineup and handling every build where one foot falls short and two feet overshoots the dimension the design requires. With full diagonal bracing across its 18-inch length, this is not a spacer — it is a true truss section carrying the same lateral rigidity and torsional performance as the longer segments in the system. Built with main chord tubing at 50 mm (1.96 in) OD / 3 mm wall and diagonal brace tubing at 25 mm (0.98 in) OD / 3 mm wall, fabricated from 6061-T6 aluminum alloy, this section fills the dimensional gap that portable stage builders encounter when overhead structures need to align with exact platform edges, that cleanroom engineers face when truss grids must match HEPA module spacing, that broadcast set builders navigate when lighting grids follow camera angles instead of round numbers, and that arena rigging contractors close when structural steel pick points don't divide into standard truss lengths.

Function & Compatibility:

The EVT12S-1½FT connects through bolted end-plates, not conical couplers. It shares the same 12-inch square cross-section, chord geometry, and through-bolt pattern as every other EVT12S piece — from the shortest spacer to the longest straight section. Four Grade 8 bolts, nuts, and washers (included) align with the standard end-plate geometry and torque to the same specification as any other joint in the system. Unlike the spacers in the EVT12S lineup, the 1.5-foot section includes diagonal bracing across its length, giving it full lateral rigidity as a standalone structural segment — the triangulated web distributes lateral loads and resists torsional forces through the brace members rather than relying solely on the end-plate bolts. At 18 inches, this section occupies the position between the 1-foot spacer (which has no diagonal bracing) and the 2-foot section (the next fully braced increment), making it the piece that gets specified when the layout needs a braced sub-span extension at exactly one and a half feet. It stacks with other EVT12S sections and spacers for compound length adjustments and integrates with any 12-inch plated bolt truss system sharing the same end-plate bolt pattern. Fabricated from EN AW-6061-T6 aluminum alloy under TÜV manufacturing standards with a brushed aluminum finish consistent with every other silver component in the EVT12S system.

Key Features

• Full Diagonal Bracing: Triangulated web structure with 25 mm (0.98 in) OD / 3 mm wall diagonal brace tubing connecting the main chords — delivering lateral rigidity and torsional resistance that spacers in the EVT12S lineup do not provide.
• 1.5-Foot Precision Length: Adds exactly 18 inches (457.2 mm) to the truss run — the braced increment between the 1-foot spacer and the 2-foot section, filling the gap where one foot is too short and two feet overshoot the target.
• 50 mm Main Chord Tubing: Four 50 mm (1.96 in) OD / 3 mm wall main chord tubes matching the structural specification of every full-length EVT12S section.
• Grade 8 Hardware Included: Ships with 4× Grade 8 bolts, nuts, and washers for immediate high-strength bolt-up using the standard EVT12S end-plate connection.
• 12-Inch Square End-Plate Geometry: Bolt-hole pattern and plate dimensions match EVT12S and other standard 12-inch plated bolt truss, maintaining full system compatibility.
• 6061-T6 Aluminum Alloy: Chords, diagonal braces, and end plates all fabricated from EN AW-6061-T6 — the same structural-grade aluminum used throughout the EVT12S family.
• TÜV Manufacturing Standards: Produced under TÜV-certified processes — the section carries the same production certification as every other component in the EVT12S catalog.
• Brushed Aluminum Finish: Standard brushed surface across all tubes and plates — visually consistent with silver EVT12S components at every joint.

Who It's For

• Portable Stage & Modular Platform Builders — You assemble and strike modular performance platforms in different venues every week — stage wings, drum risers, DJ platforms, award show stages — and the overhead truss structures above them need to fit exact footprints that change with every gig. A 1.5-foot section fills the dimensional gap that standard 2-foot and 5-foot sections can't reach, keeping the overhead grid aligned with the stage edges below it without overhanging into walkways, audience sightlines, or neighboring performance areas. The diagonal bracing gives you a laterally rigid segment at the adjustment point instead of a spacer that relies entirely on the bolt connection for structural continuity.
• Cleanroom & Pharmaceutical Facility Engineers — Your cleanroom ceiling grid for pharmaceutical manufacturing, semiconductor fabrication, or laboratory environments must align precisely with HEPA filter modules, laminar flow hoods, and equipment drop zones that were laid out according to the room's process flow — not standard truss increments. A 1.5-foot braced section lets you match the truss grid to the cleanroom module spacing without cutting a longer section or field-modifying a certified component, and the diagonal bracing maintains the lateral rigidity the grid needs to support utility distribution and equipment loads across the clean space without deflecting under sustained static load.
• Broadcast News & Talk Show Set Builders — Your television set is designed around exact camera angles, talent positions, and chroma key wall boundaries, and the overhead lighting grid has to put fixtures at specific coordinates relative to the anchor desk, interview chairs, and background panels. A 1.5-foot section adjusts the grid geometry to land each lighting position where the LD plotted it — without adding unnecessary length that would push adjacent fixtures out of their focused positions or extend the grid past the edge of the set into an area the camera sees. The full diagonal bracing gives the section the same structural behavior as the longer segments in the grid, not the reduced rigidity of a spacer at the same adjustment point.
• Sports Arena & Scoreboard Rigging Contractors — You're hanging center-hung scoreboards, ring lights, and speaker clusters from overhead truss in arenas where the distances between structural steel pick points were set by the building engineer and don't change for the production. Those distances rarely divide evenly into standard truss lengths, and the gap between the last full-length section and the rigging attachment point has to be bridged with a cataloged component — not a stacked combination of shorter spacers that multiplies bolt joints and reduces lateral rigidity at the most structurally critical point in the hang. The 1.5-foot braced section closes that gap in a single fully rigid segment, keeping the load centered and the grid balanced at the pick point.
• Structural & Rigging Engineers — The EVT12S-1½FT is a 1.5-foot (457.2 mm) fully braced 6061-T6 aluminum truss section with a 12-inch square profile, 50 mm OD / 3 mm wall main chord tubing, and 25 mm OD / 3 mm wall diagonal brace tubing, fabricated under TÜV manufacturing standards with Grade 8 end-plate connection hardware included. Unlike the 1-foot and shorter spacers in the EVT12S lineup, this section includes diagonal bracing and provides full lateral rigidity as a standalone structural segment. It appears on an engineered drawing as a standard cataloged truss section. Load calculations must reference the official EVT12S Load Tables for the complete assembled span. A licensed professional engineer must review all structures.

Designed by Evolve Truss, the EVT12S-1½FT is the braced section that sits between the spacers and the standard lengths — 18 inches of fully rigid truss that fills the gap where a foot falls short and two feet go too far.

⚠️ Safety & Engineering Notice

❗ Critical Load Rating Information: The rated load capacity for this section depends on the full system configuration — total span length, support positions, and load distribution. For precise load specifications, always refer to the official EVT12S Truss Series Load Tables for your specific span. Consult a qualified engineer before use.

Important Guidelines for Safe Use:

• Inspect all chord tubes, diagonal braces, end plates, and bolt holes for deformation, cracking, or weld defects before every use.
• Ensure all Grade 8 bolts are torqued to manufacturer specifications.
• Do not mix truss components from different manufacturers unless the bolt pattern, plate dimensions, and chord alignment have been strictly verified for compatibility.
• 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: End-plate bolt configurations vary by manufacturer. Compare your existing truss plate dimensions against EVT12S specifications before purchase.
• Confirm Chord Alignment: Ensure all four chord tubes align precisely across the joint to prevent uneven bolt loading and eccentric force transfer through the braces.
• Mixing incompatible plated truss can compromise connection integrity and lead to structural failure.

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