If you’re in the live production, trade show, or entertainment world, you know that a strong and reliable stage truss system is the backbone of any event. The Global Truss 20.64’ x 20.64’ Multi-Tower Ground Support System is one of the most versatile solutions for creating a safe, professional structure that can hold lighting, video walls, banners, and sound equipment. In this guide, we’ll walk you through exactly how to assemble this lighting truss system from the ground up—no shortcuts, just the full process with all the right parts.

Whether you’re setting up a DJ truss for a festival, a trade show booth truss for an expo, or a display booth truss for a corporate event, this build is your foundation for success.

Materials Needed (Per Tower)

Each of the four towers in this global truss ground support system requires the following components:

• 1x CHAIN HOIST30 – 1 Ton, 30 ft. Manual Chain Hoist (currently out of stock, excluded from total package price)
  
• 1x 44BS-1 – Ground Support Base
  
• 4x GT-492145-1 – Outrigger with Stabilizer Arm
  
• 1x GT-BLOCK – Sleeve Block (1.3 ft square)
  
• 1x GT-TOP/CM – Top for Chain Motor
  
• 2x SHACKLE 5/8 – 5/8-inch Steel Shackle (Max Load 3-1/4 Tons)
  
• 1x WIREROPE9 – 9 ft. Round Sling with Aircraft Cable Inside
  
• 2x HINGE/M12-L/88MM – Left 88mm Hinge for Ground Support System
  
• 2x HINGE/M12-R/88MM – Right 88mm Hinge for Ground Support System
  
• 1x Global Truss F34 12" Aluminum Box Truss 1.64 ft.
  
• 2x Global Truss F34 12" Aluminum Box Truss 9.02 ft.

Top Horizontal Trusses

• 8x Global Truss F34 12" Aluminum Box Truss 9.02 ft. (2 for each side connected in between GT-BLOCKs)
  

Step-by-Step Assembly Guide

Step 1: Position the Bases

Lay out your 44BS-1 Ground Support Bases in a square formation, approximately 20.64 ft x 20.64 ft apart. This defines the footprint of your system. Attach the GT-492145-1 Outriggers with Stabilizer Arms to each base. These stabilizers are critical to keeping your stage trussing safe and steady.

Step 2: Build the First Section of Each Tower

On top of each base, connect a 1.64 ft F34 aluminum truss. This short segment acts as the starter section. Next, slide the GT-BLOCK Sleeve Block over the 1.64 ft truss. The block will eventually support and raise your lighting truss grid.

Step 3: Add Hinges and Vertical Trusses

Attach the M12 Left and Right Hinges on top of the 1.64 ft truss. Once the hinges are secured, connect two 9.02 ft F34 truss segments vertically above them. This forms the main tower shaft.

Step 4: Cap the Towers

Place the GT-TOP/CM Top for Chain Motor at the upper end of each tower. This piece allows you to safely attach your chain hoists and rigging equipment. Add the shackles and round sling where needed for motor and load attachment.

Each tower should now stand approximately 19.68 ft tall, giving you the required working height for your horizontal grid.

Step 5: Assemble the Top Horizontal Truss Grid

On the ground, pre-build the square top frame using:

• Two F34 9.02 ft truss segments per side
  
• Connected in the middle by a GT-BLOCK Sleeve Block (1.3 ft square)
  

This configuration gives each side a total length of 20.64 ft, resulting in a perfect square truss grid measuring 20.64 ft x 20.64 ft.

Step 6: Lift and Secure the Grid

With the help of your crew and chain hoists, attach the horizontal grid to each GT-BLOCK on the towers. Use the chain motors (when available) or manual hoists to carefully raise the grid to your desired height. Make sure all corners are level and locked in place.

Why Choose This System?

• Built from global truss F34 aluminum truss, making it strong yet lightweight.
  
• Modular design allows you to expand or reconfigure easily.
  
• Perfect for portable stages, DJ lighting truss setups, trade show booth truss, convention booth truss, and display booth truss.
  
• Provides a professional, polished look that impresses clients and audiences alike.
  

Final Thoughts

The Global Truss 20.64’ x 20.64’ Multi-Tower Ground Support System is the ultimate solution when you need strength, safety, and flexibility for your productions. From festivals to corporate events, this stage truss system ensures your lighting truss and equipment are supported with rock-solid reliability.

At famousstages.com, we stock everything you need—from DJ trussing to aluminum lighting truss—so you can build with confidence and get your show on the road.