Truss
Truss is aluminum or steel structural framework used to support, hang, or ground-mount LED video walls. Available in various profiles (box/square, triangular, ladder), truss provides the rigging points and structural support needed for safe LED wall installations. Standard truss spans can support 3,000-10,000+ pounds depending on type and configuration.
Truss for LED Display Support
Truss forms the backbone of most professional LED video wall installations, providing the structural framework for both flown and ground-supported displays.
Truss Types
**Box/Square Truss**
- Four-sided profile with chords at corners
- Excellent strength in all directions
- Common sizes: 12", 20.5", 30" width
- Most popular for LED wall rigging
**Triangular Truss**
- Three-sided profile
- Lighter weight, lower capacity
- Used for lighter LED walls or decorative framing
- Cost-effective option for appropriate loads
**Ladder Truss**
- Two-sided flat profile
- Used primarily for ground support frames
- Lower cost, limited hanging application
Truss Sizing
Truss capacity depends on:
Cross-Section Size: Larger truss handles more weight
Wall Thickness: Thicker aluminum = higher capacity
Span Length: Longer spans reduce capacity significantly
Load Position: Center loads stress truss more than distributed loads
Example capacities (approximate, verify with manufacturer):
| Truss Type | 20ft Span | 40ft Span | |------------|-----------|-----------| | 12" Box | 2,000 lbs | 800 lbs | | 20.5" Box | 6,000 lbs | 2,500 lbs | | 30" Box | 10,000 lbs | 4,500 lbs |
LED Wall Truss Configurations
Goal Post: Two vertical towers with horizontal truss span
Ladder Configuration: Horizontal truss supported at multiple points
Grid System: Multiple parallel trusses supporting large walls
Ground Support Frame: Truss frame with base plates for floor-mounted walls
Connection Hardware
Couplers: Join truss sections together
Corner Blocks: Create 90-degree turns
Base Plates: Support vertical towers on floor
Sleeve Blocks: Connect perpendicular truss
Fork/Spigot: Male/female truss end connections
Safety Considerations
Load Tables: Always reference manufacturer capacity charts
Safety Factor: Working loads include 5:1 safety factor
Inspection: Check for damage before each use
Assembly: Follow manufacturer assembly procedures
Documentation: Maintain rigging plots and calculations
Truss and LED Panel Interface
LED walls attach to truss via:
Hanging Bars: Horizontal bars bridging truss, panels hang from bars
Direct Attachment: Some panels clamp directly to truss chords
Hanging Frames: Custom frames connecting panels to truss
Spigots: Panel-integrated hardware engaging truss fittings
Procurement Considerations
Rental vs Purchase: Common truss readily available for rent
Compatibility: Ensure truss brand matches available hardware
Accessories: Budget for couplers, base plates, corner blocks
Transport: Consider trucking costs for heavy truss
Frequently Asked Questions
What type of truss should I use for LED walls?
Box (square) truss is most common for LED walls due to its strength in all directions. 12" or 20.5" box truss handles most applications. For very large walls, 30" truss provides additional capacity. Triangular truss works for lighter applications.
How much weight can truss support?
Weight capacity depends on truss type, span length, and load position. A 20.5" box truss might support 6,000+ lbs at a 20-foot span center-loaded, but only 2,000 lbs at 40 feet. Always consult manufacturer load tables for your specific configuration.
Do I need an engineer to approve truss rigging?
For permanent installations and many temporary installations, yes. Local codes vary, but most jurisdictions require professional engineering review for overhead rigging. Even when not legally required, engineering review provides liability protection and safety assurance.
Related Terms
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Chain Hoist
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Point Load
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