What truss sizes is the EVT12S‑BP30SR2 base plate compatible with?

The EVT12S‑BP30SR2 30″ steel stabilizing base plate is compatible with all 12″ and 20.5″ box truss that uses the same bolt pattern, including common 12″ and 20.5″ square aluminum truss systems used in trade shows and events.

Is the EVT12S‑BP30SR2 suitable for heavy‑duty indoor and outdoor use?

Yes, this base plate is built from heavy steel with a large 30″ × 30″ footprint and substantial weight, making it well‑suited for stabilizing heavy‑duty truss structures in both indoor and outdoor applications.

What is the raised frame, and why does it matter?

The 2 Inch raised welded steel frame elevates the 9mm plate off the ground, which prevents warping under heavy load, provides clearance for bolt hardware and coupling connections, and adds structural rigidity that a flat plate at this weight class cannot achieve. It also makes the plate easier to handle on uneven or debris-covered floors common in outdoor event environments.

30 x 30 Inch Heavy-Duty Steel Base Plate – 9mm Thick with 2 Inch Raised Frame and 1.5 Inch Schedule 40 Pipe Flange for Truss and Pipe Mounting Systems

Heavy-Duty Truss and Pipe Ground Support

30 x 30 Inch Heavy-Duty Steel Truss Base Plate.
2 Inch Raised Frame for Compatible Truss and 1.5 Inch Schedule 40 Pipe.

The EVT12S-BP30SR2 is a 30 x 30 inch heavy-duty steel truss base plate built from Q235 carbon steel. Its 9 mm plate sits on a 2 inch raised welded frame and includes universal elongated truss bolt slots, one centered 1.5 inch Schedule 40 pipe flange, and laser-cut carrying handles. At 121 lb, the base plate contributes substantial mass to a build, but it does not by itself establish adequate ballast, wind resistance, stability, or approval for a specific tower height or load.

Base Plate Facts

Model / SKUEVT12S-BP30SR2

Product ClassHeavy-Duty Raised Steel Base Plate

Plate Dimensions30 x 30 in / 762 x 762 mm

Plate Thickness0.35 in / 9 mm

Raised Frame2 in / 50.8 mm Welded Steel Frame

Base Plate Weight121 lb / 54.88 kg

30 x 30 inSteel Plate Footprint

9 mmPlate Thickness

2 inRaised Welded Frame

121 lbDocumented Plate Weight

1 Center Flange1.5 in Schedule 40 Pipe

What It Is

A 30 x 30 Inch Steel Base Plate for Heavy-Duty Truss and Pipe Ground Support.

EVT12S-BP30SR2 is a ground-level mounting component for compatible truss and pipe interfaces. It combines a 30 x 30 in Q235 carbon-steel plate, a 2 in raised welded frame, elongated bolt slots, and a centered Schedule 40 pipe flange. The appropriate connection, ballast, anchors, upright, load, terrain, and operating conditions must be determined for the actual installation.

30 x 30 Inch Steel Plate

A 30 x 30 in / 762 x 762 mm Q235 carbon-steel base plate for planned truss and pipe mounting applications.

121 lb Documented Mass

The base plate weighs 121 lb / 54.88 kg. Its mass is a product fact, not a universal ballast or stability calculation.

Matte Black Powder Coat

The matte black finish supports visual continuity in black-truss, studio, stage, exhibit, and architectural environments.

Laser-Cut Side Handles

Two laser-cut carrying handles, one on each side, support planned team handling and placement.

Raised Frame Design

A 2 Inch Welded Steel Frame for Elevated Plate Support and Connection Clearance.

Unlike a flat base plate, the EVT12S-BP30SR2 places its 9 mm steel plate on a 2 in raised welded steel frame. The documented frame design elevates the plate, provides clearance for bolt hardware and mounting connections, and adds rigidity to the base assembly. It does not replace engineering review of the complete installed structure.

2 Inch Raised Frame

The plate is supported on a 2 in / 50.8 mm welded steel frame.

Hardware Clearance

The raised geometry provides underside clearance for planned bolt hardware and connection arrangements.

Rigid Base Assembly

The welded frame adds structural rigidity to the plate assembly compared with a flat plate configuration.

Documented Height

The assembled base plate has a documented overall height of 2.35 in.

Mounting Interfaces

Universal Truss Bolt Slots and One Centered Pipe-Flange Position.

The product source identifies universal elongated bolt slots for specified 12 in, 20.5 in, and 290 mm truss bolt patterns, along with one centered 1.5 in Schedule 40 welded pipe flange. Each connection must be verified for actual alignment, hardware, retention, orientation, load path, and the final installation design.

Universal Elongated Bolt Slots

The slot pattern is intended for specified 12 in, 20.5 in, and 290 mm truss bolt-pattern interfaces when physical fit is verified.

Centered Pipe Flange

One welded 1.5 in Schedule 40 pipe flange provides a centered pipe-upright position.

Universal Bolt-Coupler Mount Hardware

The source identifies universal bolt-coupler mount hardware as included. Confirm the delivered hardware list before installation.

One Interface at a Time

Use the intended truss or pipe interface according to the approved layout. Do not improvise a mixed connection arrangement.

When to Select It

Choose It When the Design Requires A Larger Raised Steel Ground Plate.

Select EVT12S-BP30SR2 when the approved design calls for a 30 x 30 in raised steel base plate with a centered pipe position and compatible truss bolt-slot interface. Product selection must be based on the complete connection and stability design, not on the plate’s weight, footprint, or raised frame alone.

Vertical Truss Columns

For approved vertical truss assemblies using a compatible bolt pattern and complete stability design.

Pipe Uprights

For 1.5 in Schedule 40 pipe uprights when the centered flange position matches the approved layout.

Stage and Exhibit Builds

For planned ground-level support applications in exhibits, scenic work, stages, studios, retail environments, and temporary technical installations.

Raised-Frame Requirement

For projects that require a raised steel base configuration with planned clearance below the plate for mounting hardware.

Compatibility

Specified for EVT12S, EVT20S, EVT290S, and 1.5 Inch Schedule 40 Pipe Interfaces.

The product source identifies compatibility with EVT12S and other standard 12 in end-plate bolt truss systems, EVT20S and other standard 20.5 in bolt truss systems, EVT290S 290 mm square conical truss, and standard 1.5 in Schedule 40 pipe. These are interface categories, not automatic approval of every component combination. Verify bolt-slot alignment, hardware, flange fit, upright orientation, load path, and project-specific engineering data before installation.

EVT12S and 12 Inch Bolt Truss

Confirm the specific end-plate bolt pattern, bolt size, hardware, and required connection method before using the elongated slots.

EVT20S and 20.5 Inch Bolt Truss

Confirm the specific 20.5 in end-plate interface, required hardware, and the complete support arrangement before connection.

EVT290S and 290 mm Truss

Verify the intended 290 mm truss mounting interface, receiver or bolt arrangement, hardware, and engineering data before connection.

1.5 Inch Schedule 40 Pipe

Verify pipe outer diameter, insertion, upright condition, retention, and the complete load case for the centered flange interface.

Specifications

EVT12S-BP30SR2 Product Reference.

Identity

Product Record

Model / SKUEVT12S-BP30SR2

BrandEvolve Truss

Product TypeHeavy-Duty Raised Steel Base Plate

Warranty1-Year Limited Manufacturing-Defect Warranty

Plate Geometry

Dimensions and Weight

Plate Dimensions30 x 30 in / 762 x 762 mm

Plate Thickness0.35 in / 9 mm

Raised Frame Height2 in / 50.8 mm

Overall Height2.35 in

Weight121 lb / 54.88 kg

Construction

Material and Features

MaterialQ235 Carbon Steel

FinishMatte Black Powder Coat

Pipe Flange1 Centered 1.5 in Schedule 40 Flange

Pipe Flange ODApproximately 1.9 in

Carrying Handles2 Laser-Cut Side Handles

Mounting Interfaces

Documented Compatibility

Bolt-Slot PatternUniversal Elongated Slots for 12 in, 20.5 in, and 290 mm Truss

CompatibilityStandard 12-Inch, 20.5-Inch End-Plated Truss Systems and 290mm/F34 Square Truss Systems

Specified Pipe1.5 in Schedule 40 Pipe

Connection HardwareUniversal Bolt-Coupler Mount Hardware Included

Installation Checks

Start with the Ground Surface. Then Verify the Connection and Complete Stability Plan.

A base plate is one element of a vertical structure. Installation requires a level and appropriate bearing surface, a verified mounting interface, correct hardware, plumb upright alignment, controlled loads, and any additional ballast or anchoring required by the complete design. These checks do not replace project-specific engineering review.

01 — Plan the Lift

The base plate weighs 121 lb / 54.88 kg. Use a planned team lift or appropriate mechanical handling method for the site conditions.

02 — Verify the Surface

Confirm the floor or support surface is level, stable, and appropriate for the complete base plate and structure load.

03 — Inspect the Base

Inspect the plate, raised frame, welds, pipe flange, bolt slots, handles, finish, and connection hardware for damage, deformation, cracks, or defects.

04 — Verify the Interface

Confirm bolt size, slot engagement, flange fit, retention method, and all fasteners for the specific truss or pipe component being installed.

05 — Check Plumb and Load Distribution

Set the vertical member plumb and confirm applied loads are distributed as required by the approved design.

06 — Add Required Stability Measures

Install specified ballast, anchors, guying, bracing, barriers, or other measures required by the complete structural and site plan.

Stability and Safety

121 Pounds of Steel Is a Product Fact. It Is Not a Universal Stability Calculation.

The base plate’s documented mass is 121 lb / 54.88 kg. Whether that mass is sufficient depends on the height and weight of the upright structure, center of gravity, applied and eccentric loads, wind exposure, floor condition, footprint, public access, impact risk, anchoring, ballast, bracing, and local requirements. Do not treat the base plate as self-ballasting for every tower, arch, pipe upright, outdoor installation, or moving load condition.

A qualified professional must determine whether the base plate, ballast, anchoring, bracing, and support arrangement are adequate for the specific structure and site.

Additional ballast or other stabilization may be required for tall vertical builds, lateral loads, outdoor exposure, wind, uneven surfaces, public areas, or other site conditions.

Keep the vertical truss or pipe plumb and maintain the load distribution required by the approved design.

Do not use a damaged, bent, cracked, corroded, or otherwise compromised plate, raised frame, weld, flange, bolt slot, truss connection, pipe, or fastener.

Use barriers, covers, markings, or other risk controls where the ground plate presents a trip, impact, or public-access hazard.

Heavy-Duty Steel Base Plate Questions

EVT12S-BP30SR2 Frequently Asked Questions.

What makes the EVT12S-BP30SR2 different from a flat steel base plate?

It uses a 9 mm steel plate supported on a 2 in raised welded steel frame. The raised frame provides documented clearance beneath the plate for planned mounting hardware and adds rigidity to the base assembly.

What truss systems can mount to the EVT12S-BP30SR2?

The product source identifies EVT12S and other standard 12 in end-plate bolt truss, EVT20S and other standard 20.5 in bolt truss, and EVT290S 290 mm square conical truss. Verify actual bolt pattern, slot alignment, connection hardware, and complete structural design before installation.

Does the 121 lb base plate eliminate the need for ballast?

No. The 121 lb product mass is a documented product fact, not a universal stability rating. Additional ballast, anchoring, bracing, or other stabilization may be required based on the complete structure, load, height, wind, surface, and site conditions.

Can the base plate be used outdoors?

Outdoor use requires project-specific evaluation of wind, anchoring, ballast, terrain, weather exposure, structure height, applied loads, and local requirements. The supplied product information does not establish a universal outdoor configuration.

Planning a 30 x 30 Inch Steel Truss Base Plate?

Contact us for interface confirmation, bolt-pattern review, pipe-flange questions, ballast and anchoring coordination, hardware planning, CAD resources, and project-specific technical support.

Structural Solutions, Unmatched Innovation

EVT12S-BP30SR2

EVT12S-BP30SR2 — 30x30 Steel Base Plate – Heavy-Duty Black Truss Base

30 x 30 Inch Heavy-Duty Steel Truss Base Plate.2 Inch Raised Frame for Compatible Truss and 1.5 Inch Schedule 40 Pipe.