Product Description
The EVT12S-BP40AR1 is a precision-machined aluminum base plate with an oversized 20 x 40-inch (508 mm x 1,016 mm) footprint engineered for EVT12S 12-Inch End-Plate Bolt Truss Series and other standard 12-inch bolt truss systems. The wide rectangular footprint distributes vertical loads across a significantly larger floor contact area than compact base plates, delivering greater tipping resistance for tall totems, signage towers, lighting columns, and trade show display structures. A laser-cut carry handle is integrated directly into the slab for fast, safe repositioning during setup and strike. Fabricated from 6061-T6 aluminum alloy with a brushed finish. Full assembly height is 37 mm (1.46 in) — comprising the 12 mm top slab and the full perimeter frame. Weighs 45 lb (20.41 kg). Hardware is not included — sold separately. STEP and DWG CAD files available upon request.
Key Features
- 20 x 40-inch footprint: The wide rectangular base delivers a larger floor contact area and more leverage against tipping than compact square plates — the right choice for tall totems, multi-section towers, and structures where a narrow base would require supplemental ballast to hold.
- 37 mm (1.46 in) full assembly height: The complete plate assembly — top slab plus perimeter frame — sits 37 mm off the floor. The top slab alone is 12 mm (0.47 in) thick. Both dimensions matter for clearance planning in tight floor setups.
- Laser-cut carry handle: Integrated directly into the slab — no separate handle hardware to lose, no sharp edges. Pick up and reposition the plate with one hand during setup.
- 6 pre-drilled bolt holes: Positioned for direct connection to EVT12S end-plate bolt truss uprights. Compatible with other standard 12-inch end-plate bolt truss systems — exact fit with other brands is not guaranteed.
- 6061-T6 aluminum alloy: High-strength, corrosion-resistant structural aluminum with a brushed finish — same material family as the EVT12S truss system it supports.
- Hardware not included: Connecting bolts and hardware are sold separately. Confirm bolt specification with your truss system before ordering hardware.
- STEP and DWG CAD files available upon request: For integration into structural drawings, venue floor plans, and 3D models.
- 1-year limited warranty against manufacturing defects.
Who It's For
- Event production companies building lighting totems: A lighting totem carrying moving heads or multiple PAR fixtures at 12 to 16 feet creates significant tipping moment that a compact base plate cannot resist without heavy ballast. The BP40AR1's 20 x 40-inch footprint distributes that tipping force across a larger ground area, reducing the ballast required to keep the totem stable on a flat event floor. The integrated carry handle means one person positions the plate without additional lifting equipment — no crew second needed just to set the base.
- Trade show exhibit contractors building signage towers: Corporate exhibit teams building freestanding signage towers and display columns at major conventions need base infrastructure that fits within the booth footprint without consuming display or aisle space. Orienting the 20 x 40-inch plate along the booth's depth dimension keeps the tower stable while minimizing the width taken from the front face of the exhibit, and the brushed aluminum finish matches the EVT12S truss aesthetic without any additional surface treatment.
- Touring production and live event crews: Touring crews building vertical truss columns for PA wings, follow-spot positions, and camera towers in venues without floor anchor points need a ground base that delivers stability without concrete anchoring. The 40-inch length accepts sandbag or water barrel ballast along both sides, distributing the ballast weight across the full base perimeter rather than stacking it at a single corner — a more effective and more floor-friendly ballast layout.
- Architectural and permanent installation contractors: Permanent truss column installations in hotel atriums, corporate lobbies, and performing arts centers sometimes require a surface-mounted base plate rather than a through-bolt floor connection. The BP40AR1's 20 x 40-inch footprint distributes the column load across a larger floor contact area, reducing the bearing stress on raised floors, concrete overlays, and finished surfaces that cannot accept concentrated point loads at a single bolt position.
Why a Wider Footprint Matters
- Tipping resistance: A 20 x 40-inch base provides substantially more resistance to lateral tipping forces than a compact plate — critical for tall single-column totems and lighting towers where the center of mass is high above the base.
- Load distribution: The larger contact area spreads vertical and eccentric loads across more floor surface, reducing point stress on finished floors, stage decking, and convention hall carpet.
- Ballast and anchoring clearance: The extended footprint provides perimeter space for sandbag placement or supplemental anchoring when additional stability is required by venue safety requirements or engineering review.
Safety and Engineering
- Does not increase load capacity: This base plate provides a wider floor contact area and improved tipping resistance. It does not increase the vertical load rating of the truss system it supports.
- Hardware torque: All connecting bolts must be torqued to the truss manufacturer's specified value. Verify bolt specification and torque requirements before assembly.
- Pre-use inspection: Inspect the plate, frame, and bolt holes before every use. Remove from service immediately if any deformation, cracking, or thread damage is found.
- Ballast: Tall totem and tower structures may require supplemental ballast or floor anchoring regardless of base plate size. Engineering review determines ballast requirements — the base plate alone does not substitute for a stability analysis.
- Assembly personnel: Assembly and rigging should be performed by personnel qualified to work with bolt truss systems.
- Engineering review: A licensed professional engineer must review all load-bearing designs, tall totem structures, and permanent installations prior to use.
Why Choose Truss Genius?
Truss Genius is your direct source for EVT12S series components backed by real product documentation and a team that understands how base plate geometry affects stability in production, trade show, and permanent installation environments. Every EVT12S-BP40AR1 ships with a 1-year limited warranty against manufacturing defects. STEP and DWG CAD files are available upon request for structural drawing integration.
Our knowledgeable truss specialists are available by phone or email to help you confirm bolt hole compatibility, identify the correct hardware specification, and plan ballast or anchoring requirements before your build. When the footprint needs to be wider, Truss Genius has the plate that fits.
Experience the Truss Genius Difference
Join the production companies, exhibit builders, touring operators, and permanent venue installers that trust Truss Genius for EVT12S series components that perform show after show. With a 20 x 40-inch footprint, integrated laser-cut carry handle, and 6061-T6 aluminum construction, the EVT12S-BP40AR1 is the base plate for structures where a compact plate leaves too small a margin. Contact Truss Genius today to order.

