EVT290S-SSBP 12-Inch Stainless Steel Truss Base - Durable Design for Longevity and Ideal for Enduring Outdoor Use
EVT290S-SSBP 12-Inch Stainless Steel Truss Base - Durable Design for Longevity and Ideal for Enduring Outdoor Use
EVT290S-SSBP 12-Inch Stainless Steel Truss Base - Durable Design for Longevity and Ideal for Enduring Outdoor Use
EVT290S-SSBP 12-Inch Stainless Steel Truss Base - Durable Design for Longevity and Ideal for Enduring Outdoor Use

EVT290S-SSBP Black | Stainless Steel

Original price was: $730.00.Current price is: $495.00.

EVT290S-SSBP Black — 12" x 12" Heavy-Duty Stainless Steel Base Plate (Matte Black)

Dimensions & Construction
Overall Dimensions: 12 in x 12 in (304.8 mm x 304.8 mm)
Plate Thickness: 0.77 in (19.55 mm)
Material Type: Q235 Stainless Steel

Finish & Features
Anchor Points: Includes 5 (five) 0.562 in (14.28 mm) pre-drilled holes for 0.5 in (12.7 mm) concrete anchors
Use Case: Designed primarily as a high-stability bottom base plate
Surface: Matte Black Powder Coat Finish
Connection Type: Conical Connection System (Includes Couplers, Tapered Pins, and R-Clips)
Compatibility: Fits F34, EVT290S, and all standard 290mm Square Truss systems
Weight: 34.6 lb (15.69 kg)

In stock

SKU: EVT290S-SSBP-Black Categories: ,

12x12 Heavy-Duty Black Steel Truss Base Plate

Heavy-Duty Black Steel Truss Base Plate with Concrete Anchor Holes.
Anchored Ground Support for EVT290S, F34, and Standard 290 mm Square Truss.

The EVT290S-SSBP-Black is a 12x12 in heavy-duty black steel truss base plate designed primarily for anchored bottom-base applications. Five pre-drilled concrete-anchor holes support permanent or semi-permanent installation planning for compatible EVT290S, F34, and standard 290 mm square truss systems.

Product Facts

ModelEVT290S-SSBP-Black
Plate Size12x12 in
Thickness0.77 in / 19.55 mm
Weight34.6 lb / 15.69 kg
Anchor Holes5 x 0.562 in / 14.28 mm
FinishMatte Black Powder Coat
12x12 inPlate Size
19.55 mmOverall Thickness
34.6 lbProduct Weight
5 Anchor HolesConcrete Mounting
290 mmTruss Compatibility

Product Overview

A Heavy-Duty Truss Base Plate Built for Anchored and Long-Term Installations.

At 34.6 lb, the EVT290S-SSBP-Black offers substantially more self-weight than lightweight aluminum plates and adds five dedicated anchor points for installation into a properly engineered concrete substrate.

Heavy Steel Construction
Provides a more substantial base component for anchored and long-term applications.
Five Concrete-Anchor Holes
Pre-drilled 0.562 in / 14.28 mm holes are intended for compatible 0.5 in / 12.7 mm anchors.
Matte Black Finish
Creates a discreet, low-reflection appearance for architectural, stage, and outdoor installations.
Bottom-Base Application
Designed primarily as a high-stability bottom base plate for compatible square truss.

Applications

Designed for Permanent, Semi-Permanent, Outdoor, and Architectural Truss Builds.

Permanent Truss Columns
Supports engineered upright truss installations anchored to suitable concrete substrates.
Architectural Lighting
Provides a substantial black foundation for approved lighting and display structures.
Outdoor Installations
Suitable for properly engineered outdoor applications where anchoring and environmental loads are addressed.
Stage and Venue Structures
Supports fixed or semi-permanent truss starts in venues and production environments.
High-Stability Totems
Offers greater self-weight than lightweight aluminum plates, while still requiring complete stability engineering.

Who It Is For

Built for Installers, Integrators, Venues, Engineers, and Production Teams.

Permanent-System Installers
For approved truss columns and structural display foundations.
AV and Lighting Integrators
For anchored presentation, lighting, and architectural structures.
Venues and Studios
For fixed black truss starts in controlled production environments.
Licensed Engineers
For integration into reviewed anchor, substrate, wind-load, and structural designs.
Production Teams
For heavy-duty truss applications assembled by trained personnel.

Functional Details

Anchor-Ready Construction with Substantial Self-Weight and a Matte Black Finish.

Five Pre-Drilled Anchor Points
Supports engineered concrete-anchor layouts using compatible hardware.
34.6 lb Product Weight
Provides greater mass than lightweight aluminum base plates.
Matte Black Powder Coat
Provides a professional, low-reflection exterior finish.
Conical Connection System
Uses matching couplers, tapered pins, and R-clips for the compatible truss interface.

Technical Details

Detailed Specifications.

Identification

Product Information

Model / SKUEVT290S-SSBP-Black
Product TypeHeavy-Duty Black Steel Truss Base Plate
Primary UseAnchored Bottom Base Plate

Physical Dimensions

Plate Size

Width12 in / 304.8 mm
Depth12 in / 304.8 mm
Overall Thickness0.77 in / 19.55 mm
Weight34.6 lb / 15.69 kg

Construction

Material and Finish

Source-Listed MaterialQ235 Stainless Steel
FinishMatte Black Powder Coat

Anchoring

Anchor-Hole Pattern

Anchor-Hole Quantity5 Pre-Drilled Holes
Hole Diameter0.562 in / 14.28 mm
Nominal Anchor Size0.5 in / 12.7 mm Concrete Anchors

System Compatibility

EVT290S, F34, and Standard 290 mm Square Truss Systems.

EVT290S-SSBP-Black uses 290 mm square truss geometry and a matching conical connection system. Compatibility requires matching receiver spacing, coupler dimensions, and engineering data.

EVT290S Compatibility
Integrates with compatible EVT290S straight sections and related 290 mm square components.
F34 Compatibility
Compatible with matching F34 290 mm square truss geometry and conical hardware.
Standard 290 mm Square Systems
Verify receiver spacing, connection geometry, and engineering data before combining systems.
Conical Hardware Compatibility
Use matching couplers, tapered pins, and R-clips approved for the connected truss system.

Installation Planning

Assembly Requirements for an Anchored Truss Foundation.

01 — Verify the Engineered Layout
Confirm substrate, anchor type, embedment, spacing, edge distance, truss height, and design loads.
02 — Inspect the Plate
Confirm the plate is flat and free from cracks, deformation, coating damage, and enlarged anchor holes.
03 — Position and Mark
Align the plate according to the approved installation drawing and mark all anchor locations.
04 — Install Approved Anchors
Prepare the substrate and install the engineer-specified anchors using the manufacturer's procedure.
05 — Connect the Truss
Install compatible conical hardware, seat the truss fully, and secure all tapered pins and R-clips.
06 — Final Inspection
Verify anchor engagement, plate contact, truss alignment, connection security, and the completed structure.

Safety and Anchoring

Concrete Anchoring Requires Substrate Verification and Engineering.

The plate's 34.6 lb self-weight does not replace engineered anchoring, ballast, or structural support.
A licensed professional engineer must determine the anchor type, embedment, spacing, edge distance, substrate strength, and design loads.
Do not install anchors into unknown, cracked, deteriorated, undersized, or otherwise unsuitable concrete.
Do not support loads directly from truss connection points.
Inspect the plate, anchor holes, anchors, couplers, tapered pins, R-clips, and connected truss before use.
Account for wind, seismic, dynamic, transverse, overturning, and environmental forces in the final design.
Use proper lifting technique and appropriate handling assistance for this 34.6 lb component.
Installation should be completed by trained personnel following the approved engineering and anchor manufacturer's instructions.

Frequently Asked Questions

EVT290S-SSBP-Black Questions.

What are the base-plate dimensions?
The plate measures 12x12 in / 304.8x304.8 mm. The current short specifications list an overall thickness of 0.77 in / 19.55 mm.
How much does the plate weigh?
The documented product weight is 34.6 lb / 15.69 kg.
How many anchor holes are provided?
The plate includes five pre-drilled holes measuring 0.562 in / 14.28 mm for nominal 0.5 in / 12.7 mm concrete anchors.
Can this plate be permanently mounted?
Yes. It is intended for anchored permanent or semi-permanent applications when the substrate, anchors, embedment, loads, and installation are approved by a licensed professional engineer.
Is it compatible with EVT290S and F34?
Yes, when receiver spacing, coupler dimensions, connection geometry, and engineering data match the connected 290 mm square truss system.
What material is listed for the plate?
The current product source lists Q235 stainless steel with a matte black powder-coated finish.
Why does older copy mention a 9 mm plate?
The legacy long description references 9 mm construction, while the current short specifications and structured data list 19.55 mm overall height or thickness. Confirm the fabrication drawing before engineering or anchor selection.

Need the correct base plate for your truss structure?

Contact us for compatibility checks, ballast planning, optional flange details, CAD files, engineering coordination, and quantity pricing.

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