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: ,

Heavy-Duty Anchored Base Plate Knowledge Center

EVT290S-SSBP Black 12 x 12 Inch Heavy-Duty Stainless Steel Truss Base Plate.
A Heavy-Duty Foundation for Permanent and Semi-Permanent Truss Installations.

The EVT290S-SSBP-Black is a 12 x 12 in / 304.8 x 304.8 mm heavy-duty Q235 stainless-steel truss base plate designed primarily for anchored bottom-base applications. Its 19.55 mm / 0.77 in plate thickness, 34.6 lb / 15.69 kg weight, five pre-drilled concrete-anchor holes, and matte black powder-coat finish support permanent or semi-permanent compatible 290 mm square-truss installations. The completed structure still requires installation-specific anchor, substrate, load, wind, and stability review.

Identity and Core Facts

Model / SKUEVT290S-SSBP-Black
Product ClassHeavy-Duty Black Stainless-Steel Truss Base Plate
Plate Dimensions12 x 12 in / 304.8 x 304.8 mm
Plate Thickness19.55 mm / 0.77 in
Plate Weight34.6 lb / 15.69 kg
Anchor Holes5 x 0.562 in / 14.28 mm
12 x 12 inPlate Footprint
19.55 mmPlate Thickness
34.6 lbProduct Weight
5 HolesPre-Drilled Anchor Points
290 mmSquare Truss Context

Product Overview

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

The EVT290S-SSBP-Black provides a substantial, matte-black stainless-steel starting point for compatible 290 mm square-truss columns and related permanent or semi-permanent structures. At 34.6 lb / 15.69 kg, it has significantly more component mass than a lightweight aluminum display plate. Its five dedicated anchor holes support an engineered concrete-mounting plan; the plate itself does not establish an anchor design, substrate capacity, permitted truss height, attachment load, or wind suitability.

Anchored Bottom-Base Use
Designed primarily as an anchored bottom base plate for compatible ground-supported truss structures.
Five Anchor Points
Five pre-drilled holes support an engineered concrete-anchor layout using project-specified anchors and installation methods.
Heavy Steel Construction
Q235 stainless-steel construction and 34.6 lb product weight provide a substantial base component for long-term applications.
Matte Black Finish
The powder-coated finish supports a low-reflection appearance in black truss, architectural, venue, studio, and outdoor layouts.

Applications

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

Use the EVT290S-SSBP-Black where a completed design calls for an anchored, heavy-duty bottom plate for compatible 290 mm square truss. Typical applications include permanently mounted truss columns, reviewed architectural lighting and display structures, fixed stage or venue starts, outdoor installations with engineered environmental loading, and semi-permanent structures installed by trained personnel.

Permanent Truss Columns
For approved upright truss installations anchored to suitable, reviewed concrete substrates.
Architectural Lighting
For approved lighting and display structures where a substantial matte-black ground plate is appropriate.
Outdoor Installations
For engineered outdoor uses where substrate, anchors, environmental loads, and inspection requirements are addressed.
Stage and Venue Structures
For fixed or semi-permanent compatible truss starts in venues, studios, and production environments.

Functional Details

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

The product combines a 12 x 12 in stainless-steel plate, 19.55 mm / 0.77 in thickness, five anchor holes, and a conical connection interface for one compatible 290 mm square-truss connection. The matte black powder coat is a finish feature; it does not change structural requirements. Greater plate mass can contribute to the overall configuration, but it must not be treated as a substitute for the engineered anchoring, ballast, bracing, and stability measures required for the completed structure.

Five Pre-Drilled Anchor Points
Five 0.562 in / 14.28 mm holes provide locations for nominal 0.5 in / 12.7 mm concrete anchors selected for the approved installation.
19.55 mm Plate Thickness
The documented 19.55 mm / 0.77 in plate thickness provides a substantial base component for compatible truss builds.
34.6 lb Product Weight
Provides greater component mass than lightweight aluminum base plates while still requiring the complete stability plan.
Conical Connection Interface
Provides the compatible conical interface for one 290 mm square truss-to-plate connection.

Technical Details

EVT290S-SSBP-Black Factual Product Reference.

Identification

Product Information

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

Physical Dimensions

Plate Size

Width12 in / 304.8 mm
Depth12 in / 304.8 mm
Plate Thickness19.55 mm / 0.77 in
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

Connection Hardware

Included Components

Half Couplers4 Factory-Attached
Coupler Pins4 Included
R-Clips4 Included
Connection UseOne Compatible Truss-to-Plate Connection

System Compatibility

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

The EVT290S-SSBP-Black uses 290 mm square-truss geometry and a matching conical connection system. It is intended for compatible EVT290S, F34, and standard 290 mm square-truss systems with matching receiver spacing and conical interface geometry. Compatibility must be verified at the actual connection, including the receiver geometry, coupler dimensions, full conical seating, and engineering data for the complete configuration.

EVT290S Compatibility
Integrates with compatible EVT290S straight sections and related 290 mm square truss components.
F34 Compatibility
Compatible with matching F34 290 mm square-truss geometry and conical receiver interfaces when the actual connection fits correctly.
Standard 290 mm Square Systems
May fit compatible standard 290 mm square systems using matching conical receiver geometry. Verify the physical interface before combining separately sourced or mixed-brand components.
Connection Verification
Confirm receiver geometry, full conical seating, pin engagement, and retention before placing the completed structure into service.

Installation Planning

Assembly Requirements for an Anchored Truss Base.

This base plate is one component in a site-specific structural installation. Before mounting, verify the approved installation drawing, concrete or other substrate condition, anchor selection, embedment, spacing, edge distance, truss configuration, anticipated loads, environmental conditions, and inspection requirements. Installation should be performed only by trained personnel under the required project oversight.

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 or damaged 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 engineer-specified anchors using the anchor manufacturer’s published procedure.
05 — Verify Hardware
Confirm the factory-attached half couplers, included coupler pins, and included r-clips are serviceable before assembly.
06 — Connect and Inspect
Seat the compatible truss fully and install all required connection hardware before applying load or placing the structure into service.

Safety and Anchoring

Concrete Anchoring Requires Substrate Verification and Engineering.

The five pre-drilled holes provide an anchor-hole pattern; they do not establish an anchor system. Safe installation depends on the actual substrate, concrete strength and condition, anchor type and grade, embedment, spacing, edge distance, torque or installation procedure, truss height, attached load, center of gravity, lateral loading, wind exposure, and the complete support arrangement. A 34.6 lb plate is heavier than a lightweight aluminum plate, but its mass alone is not a stability, ballast, or wind-resistance rating.

Use only engineer-specified anchors and installation details appropriate for the actual substrate and required loads.
Do not assume a nominal 0.5 in / 12.7 mm anchor size is adequate without project-specific anchor and substrate review.
Do not use damaged, cracked, degraded, thin, unverified, or otherwise unsuitable substrates for an anchored truss installation.
Do not rely on plate weight alone to stabilize tall towers, outdoor structures, wind-exposed builds, or structures with lateral or eccentric loads.
Address ballast, anchoring, outriggers, bracing, barriers, and other support measures in the final engineered configuration as required.
Inspect the plate, anchor locations, conical connection hardware, and connected truss before installation and before placing the completed structure into service.
Assembly and final review should be completed by trained truss personnel and a licensed professional engineer where required.

Evidence and Review

What This Page Confirms, and What the Installed Structure Must Still Establish.

This page confirms the documented product facts: 12 x 12 in plate size, 19.55 mm / 0.77 in plate thickness, 34.6 lb / 15.69 kg product weight, Q235 stainless-steel construction, matte black powder-coat finish, five 0.562 in / 14.28 mm anchor holes, included connection hardware, and compatible 290 mm square-truss context. It does not establish anchor capacity, required embedment, allowable truss height, fixture load, ballast, wind suitability, substrate adequacy, or the stability of a specific completed structure.

Confirmed Product Facts
12 x 12 in Q235 stainless-steel plate, 19.55 mm / 0.77 in thickness, 34.6 lb / 15.69 kg weight, matte black finish, five anchor holes, included connection hardware, and a conical connection interface.
Installation-Specific Facts
Substrate strength, anchor type and capacity, embedment, spacing, edge distance, truss height, load, wind, center of gravity, bracing, and public-access conditions must be determined for the specific installation.
Evidence Worth Retaining
Keep the current product drawing, approved structural layout, anchor data, substrate review, installation procedure, inspection record, project photos, and required approvals with the project file.
No Invented Capacity Claims
Do not claim that the plate is adequate for a particular tower, anchor arrangement, wind condition, fixture load, or installation unless supported by attributable technical data and required project review.

Product information on this page is based on current product documentation and is subject to change. Verify the current product drawing, included hardware, anchor requirements, and installation instructions before ordering or installing. For permanent, public-facing, outdoor, or load-bearing structures, obtain the project-specific review required by the applicable authority and design professional.

Frequently Asked Questions

EVT290S-SSBP-Black Questions.

What are the base-plate dimensions?

The plate measures 12 x 12 in / 304.8 x 304.8 mm and has a 19.55 mm / 0.77 in plate thickness.

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 selected and approved for the installation.

Does the plate include truss connection hardware?

Yes. The plate includes four factory-attached half couplers, four included coupler pins, and four included R-Clips for one compatible truss-to-plate connection.

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 details are reviewed and approved as required for the project.

Is it compatible with EVT290S and F34?

It is intended for compatible EVT290S, F34, and standard 290 mm square-truss systems when receiver spacing, coupler dimensions, connection geometry, and the engineering data match the connected system.

Does the 34.6 lb plate weight eliminate the need for anchoring or stability review?

No. The product weight does not replace the project-specific requirements for anchoring, substrate verification, ballast, bracing, wind analysis, or complete stability engineering.

What material and finish are listed?

The current product source lists Q235 stainless steel with a matte black powder-coated finish.

Need the correct anchored black base plate for a 290 mm truss structure?

Contact us for compatibility checks, connection-hardware planning, anchor-hole layout coordination, technical documents, engineering coordination, and quantity pricing.

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