When should I use a 4-inch truss spacer?

The EVT12S-4IN is used to fine-tune the overall length of a truss run. It is essential when a grid or structure must meet precise dimensions that standard 5ft, 8ft, or 10ft sections cannot achieve.

Is the EVT12S-4IN compatible with other brands?

Yes, provided the other brand uses the standard 12x12 plated bolt pattern. It is compatible with Tomcat, James Thomas Engineering, Milos, and Show Solutions. Always verify chord alignment before mixing brands.

Can this spacer be powder coated?

Yes, we offer professional powder coating services for the EVT12S-4IN in any custom RAL color. This is ideal for matching corporate branding or creating a stealth look for stage designs.

What is the intended use and load limitation of this truss?

Trusses are primarily designed to suspend static loads. Assembly must be performed by trained and competent persons. While dynamic loads may be accepted in specific cases, they strictly require review and approval by a structural engineer.

What are the testing and inspection requirements for this truss?

Trusses must be visually checked before every use for deformations, cracks, missing diagonals, bending, or wear on connection points (bolts/sleeves). Additionally, a competent person must perform a documented inspection at least once a year. Any truss deemed unsafe must be immediately taken out of service and marked 'DO NOT USE'.

EVT12S-4IN

EVT12S Truss Spacer

4 Inch Aluminum Truss Spacer.
Adds a 4 Inch Increment to 12-Inch End-Plated Truss Systems.

The EVT12S-4IN is a 4 inch aluminum plated-bolt truss spacer for EVT12S and 12-Inch End-Plated Truss Systems. It adds a documented 4 inch / 101.6 mm increment between compatible end plates. The spacer adds length and a bolted connection to a completed truss system. It does not increase truss capacity.

Product Facts

Model / SKUEVT12S-4IN

Product Type4 Inch Plated-Bolt Truss Spacer

Overall Size12 x 12 x 4 in

MaterialEN AW-6061 T6 Aluminum

Weight9.30 lb / 4.21 kg

Included Hardware4 Grade 8 Bolt Sets

4 inAdded Length

12 x 12 inSquare Truss Size

9.30 lbSpacer Weight

4-BoltEnd-Plate Connection

Grade 8Included Hardware

Product Overview

A 4 Inch Truss Spacer for 12-Inch End-Plated Truss Systems.

The EVT12S-4IN is a 4 inch aluminum truss spacer with a 12 x 12 inch square profile. It adds a documented 4 inch / 101.6 mm increment between compatible plated end plates. It is built from 50 mm main tubing and 25 mm brace tubing, has a brushed aluminum finish, and uses a four-bolt end-plated connection.

4 Inch Increment

Adds 4 in / 101.6 mm between compatible plated truss components.

12 Inch Square Size

Listed overall dimensions are 12 x 12 x 4 in / 304.8 x 304.8 x 101.6 mm.

6061-T6 Aluminum

Listed material is aluminum alloy EN AW-6061 T6 with a brushed aluminum finish.

End-Plate Connection

Uses a compatible four-bolt, end-plated nut-and-bolt connection arrangement.

Truss Spacer Uses

4 Inch Truss Spacer for Lighting Grids, LED Wall Frames, and Display Structures.

The EVT12S-4IN may be used in compatible plated truss systems for lighting grids, LED wall frames, trade-show structures, touring systems, and rental inventory. Confirm the complete truss system, support conditions, connection count, hardware, and intended use before placing any structure into service.

Lighting Grids

For compatible lighting-grid systems that include a 4 inch spacer component.

LED Wall Frames

For compatible plated truss frames that include a 4 inch spacer between end-plate connections.

Trade Show Structures

For compatible truss systems used in booth and overhead display structures.

Touring Systems

For compatible plated truss systems that include a 4 inch spacer component for a specific build.

Rental Inventory

For rental inventory supporting compatible 12 inch plated bolt-truss components.

Included Hardware

Supplied with Hardware for One Four-Point Connection.

Four Grade 8 bolts, four nuts, and four washers are included with the truss spacer. Confirm the quantity, bolt length, hardware specification, engagement, and tightening requirements for the complete truss system before use. Additional hardware may be required where the system includes multiple connections.

4 Grade 8 Bolts

Bolts listed for the four end-plate connection points.

4 Nuts

Matching nuts listed for securing the supplied bolts.

4 Washers

Washers listed for the supplied connection hardware arrangement.

Full Assembly Check

Do not assume one included set covers every connection in a multi-section truss system.

Technical Reference

EVT12S-4IN Truss Spacer Specifications.

Identification

Product Details

Model / SKUEVT12S-4IN

BrandEvolve Truss

Product Type4 Inch Plated-Bolt Truss Spacer

Warranty1-Year Limited Manufacturing-Defect Warranty

Dimensions and Weight

Overall Size

Width12 in / 304.8 mm

Height12 in / 304.8 mm

Depth / Length4 in / 101.6 mm

Weight9.30 lb / 4.21 kg

Material and Tubing

Construction

MaterialAluminum Alloy EN AW-6061 T6

Main Tubing1.96 in / 50 mm OD, 0.12 in / 3 mm Wall

Brace Tubing0.98 in / 25 mm OD, 0.12 in / 3 mm Wall

FinishBrushed Aluminum

Connection Context

System Interface

Connection TypeEnd-Plated Nut and Bolt

Included Hardware4 Grade 8 Bolts, Nuts, and Washers

CompatibilityEVT12S and 12-Inch End-Plated Truss Systems

3D ResourceGLB Model Available

System Compatibility

EVT12S and 12-Inch End-Plated Truss Systems. Verify Every Connection Before Assembly.

The EVT12S-4IN is designed for EVT12S and 12-Inch End-Plated Truss Systems. Before joining components from different systems, verify end-plate dimensions, bolt-hole locations, chord alignment, required hardware, fastener engagement, and full seating of the assembled connection.

EVT12S

Designed for EVT12S 12-inch end-plated truss components.

12-Inch End-Plated Truss Systems

Confirm the actual connection interface and completed-system suitability before connecting components from different systems.

Four-Bolt Connection

Verify matching end-plate dimensions, bolt-hole locations, and required hardware before attempting connection.

Completed Joint Inspection

Confirm alignment, engagement, hardware, and plate seating at every assembled connection.

Assembly Overview

Align the End Plates. Install and Check All Four Fasteners.

The truss spacer installs between compatible plated truss components using the applicable four-bolt end-plate connection method. Assembly should be completed by personnel qualified for the truss system and according to applicable manufacturer requirements. This overview does not provide torque values or replace approved installation instructions.

01 — Inspect Components

Inspect the spacer, main tubing, brace tubing, end plates, bolt holes, bolts, nuts, washers, and connected truss for damage or deformation.

02 — Align Without Force

Bring compatible end plates together without using bolts to pull distorted or misaligned components into place.

03 — Install Hardware

Install the required four-bolt hardware arrangement with the correct parts and full engagement for the actual connection.

04 — Tighten as Specified

Tighten all fasteners using the applicable truss-system requirements and approved procedure.

05 — Check Seating

Confirm the end plates are fully seated and all required fasteners are present and secured.

06 — Inspect Before Service

Inspect the completed truss system and its support arrangement before applying loads or placing it into service.

Safety and Engineering

A Truss Spacer Adds Length. It Does Not Increase Truss Capacity.

The EVT12S-4IN adds 4 inches and a bolted connection to the truss system. The allowable loading and suitability of the completed system depend on the truss model, span, support conditions, connection count, orientation, applied loads, suspension method, and project-specific review. Load-bearing, suspended, dynamic-load, or other complex configurations require review by qualified structural or entertainment-rigging personnel.

Use only undamaged truss spacers, compatible truss components, and complete hardware sets suitable for the actual connection.

Inspect the spacer, welds, end plates, bolt holes, bolts, nuts, washers, and connected truss before every use.

Do not use components with cracks, bends, deformed end plates, elongated holes, damaged welds, or severe wear.

Install all required fasteners and tighten them according to the applicable manufacturer specification and approved procedure.

Do not connect components from different systems unless the connection interface and completed system have been verified for the specific application.

A competent person should perform documented inspection at least annually, and any component deemed unsafe must be removed from service.

Truss Spacer Questions

EVT12S-4IN Frequently Asked Questions.

What are 4 inch truss spacers used for?

They add an exact, fixed amount of length to a truss run. Typical jobs include sizing an LED video wall support frame to its panel array, and closing a short gap so a lighting grid or stage rig lands on a venue pick point or footprint when standard sections do not fit the space.

Does a 4 inch truss spacer increase the load capacity of my truss?

No. It adds length and one more bolted connection. The loading the completed system can carry depends on the truss model, span, supports, number of connections and how it is loaded, so follow the load ratings of your main truss sections and have qualified personnel review suspended or load-bearing setups. Do not hang loads directly from the spacer.

Which spacer size should I order for my gap?

Measure the shortfall between the end plates and choose the spacer closest to it without going over. The 4 inch spacer adds 4 in / 101.6 mm, and the 3/8 inch and 1/2 inch plates fine-tune it, so 4 in plus a 1/2 inch plate adds 4.5 in / 114.3 mm. Count every added piece as another bolted joint.

Is the 4 inch spacer available in black?

This EVT12S-4IN has a brushed aluminum finish. A matte black powder-coat version, the EVT12S-4IN Black, suits camera-facing broadcast studios and theaters where overhead metal should blend into a dark ceiling.

Need a 4 Inch EVT12S Truss Spacer?

Contact us for truss spacer selection, listed compatibility information, product documentation, and quantity-quote support. For load-bearing or suspended truss systems, coordinate the completed system with qualified engineering or rigging personnel.

Structural Solutions, Unmatched Innovation

Weight	9.30 lbs
Dimensions	13 × 13 × 13 in