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When choosing a temporary truss system for a stage, exhibition booth, LED screen structure or event installation, beam span is one of the first technical factors to review. However, span length should not be considered independently. Load requirements, support positions, truss dimensions, tube specifications and connection methods can all affect the final configuration.
The modular design of Aluminum Spigot Truss makes it possible to build structures from different truss sections and lengths. This flexibility is useful for event contractors and project buyers who need to balance structural requirements with transportation, installation and venue limitations.
Rather than selecting a truss simply according to the length of a beam, it is more practical to evaluate the complete structure and determine which section size and configuration are appropriate for the intended application.
Why Span Length Is Important
As the unsupported distance becomes longer, the structural requirements of a truss system generally become more demanding. A short exhibition frame and a long-span stage structure may use the same basic truss concept, but their engineering conditions can be very different.
The expected load is particularly important. Depending on the project, the truss may need to support stage lights, LED displays, banners, signs, decorative elements or other suspended equipment. The position and distribution of these loads can also influence the required configuration.
For this reason, beam length should normally be evaluated together with:
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Total span
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Load type and weight
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Load distribution
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Support locations
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Connection method
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Indoor or outdoor conditions
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Required section dimensions
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Installation and transportation limitations
A modular truss system also needs to be practical to transport. Instead of manufacturing one extremely long beam, contractors can use several shorter sections and connect them on site. This approach can simplify handling and make the same truss system adaptable to different venue layouts.
Truss Sizes for Different Applications
Different projects require different structural configurations. Shizhan offers a broad range of truss section dimensions, from relatively compact sections to larger heavy-duty configurations.
Available section sizes include 200×200mm and 250×250mm for lighter applications. Other options include 290×290mm, 300×300mm, 350×350mm, 300×400mm, 400×400mm, 450×450mm and 400×600mm.
For larger structural requirements, available configurations include 520×760mm, 600×760mm and 600×1000mm.
As a general project-planning reference, some span ranges may be matched with different truss dimensions:
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Around 1–12m: 290×290mm can be considered as a reference configuration.
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Around 12–18m: 400×400mm can be considered.
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Around 18–22m: 500×500mm can be considered.
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Above 22m: a larger configuration such as 760×600mm may be evaluated.
These ranges should not be treated as universal engineering rules. The appropriate truss size depends on the actual structural conditions. A qualified project design should consider span, loading, support arrangement, environmental conditions and applicable engineering requirements before the final specification is confirmed.
For example, a 15m truss carrying lightweight lighting equipment may have different requirements from a 15m structure supporting a large LED display. The span is the same, but the applied load and structural arrangement are not.
How to Match Truss Dimensions With Project Requirements
A useful starting point is to identify the total beam length and then determine what loads the structure must carry.
For smaller temporary structures with limited loading, compact truss sections may be suitable if their engineering capacity has been verified. The 200×200mm and 250×250mm configurations can be considered for certain light-duty applications.
For medium-size event structures, options such as 290×290mm, 400×400mm and 400×600mm provide additional flexibility. These sections may be used for stage structures, exhibition systems, display frames and other temporary installations according to the project design.
When larger spans or heavier loading conditions are involved, larger sections such as 520×760mm, 600×760mm and 600×1000mm can provide additional configuration possibilities.
However, choosing a larger truss simply because the span is longer is not enough. The complete structural system needs to be reviewed, including supports, connections, applied loads and the arrangement of the truss within the installation.
Tube Specifications Should Also Be Reviewed
The outside dimensions of a truss do not tell the entire story. Tube diameter and wall thickness are also important when comparing different truss configurations.
A standard configuration can include a 50×3.0mm main tube, 25×2.0mm vice tubes and 20×2.0mm braces. Depending on the design, other main tube specifications may include 30×2mm, 50×4mm and 50×5mm.
Available vice tube specifications can include 18×2mm, 20×2.5mm and 25×2.5mm, while brace options can include 20×2mm, 25×2mm and 30×2mm.
This means buyers should look beyond the overall truss size when reviewing a quotation or technical drawing. Main tube specifications, brace arrangement, material grade, welding quality and connection design can all influence the final product configuration.
For projects involving multiple truss sections, consistency between components is also important. Dimensional accuracy and connection compatibility can affect the efficiency of assembly at the installation site.
Spigot Connections for Modular Truss Systems
Connection design is another consideration when a truss needs to be assembled from multiple sections.
A spigot connection allows separate truss segments to be joined together to form a longer structure. This modular approach can be practical for touring events, exhibition systems and temporary installations where the structure needs to be dismantled after use.
For example, a longer beam can be divided into several sections rather than transported as one complete piece. A project requiring approximately 12m of truss may use a combination of shorter sections according to the structural drawing and available components.
Bolt-connected configurations can also be considered where required by the project.
The key advantage of modular construction is not only easier transportation. Different combinations of standard sections can also provide greater flexibility when the same truss system is used at venues with different dimensions.
Selecting Section Length for Transportation
Section length can have a direct impact on logistics and installation efficiency.
Standard section lengths can include 0.5m, 1m, 1.5m, 2m and 4m, while custom lengths may be available for specific projects.
Short sections can be helpful when equipment needs to pass through narrow doors, corridors or restricted access areas. They can also be useful when transportation space is limited.
Longer sections may reduce the total number of connection points in a straight run, but they require more consideration during loading, unloading and installation. Vehicle capacity, lifting methods, venue access and available installation personnel should all be reviewed.
For exhibition contractors and touring event teams, the best section length is therefore not necessarily the longest available option. The practical transportation route and installation conditions should be considered together with the structural design.
Aluminum Alloy and Manufacturing Details
Material selection is another factor when comparing aluminum truss products. The truss system described here can be manufactured from 6061-T6 or 6082-T6 aluminum alloy, materials commonly used in engineering applications where a balance of strength and relatively low weight is required.
Manufacturing quality also matters because a modular truss system contains multiple sections that need to connect accurately.
According to the manufacturer's supplied production information, its manufacturing operation covers tube and accessory production as well as finished truss assembly. The reported facility covers approximately 35,000m² and includes R&D personnel, quality-control staff and CNC processing equipment.
Load testing is carried out before delivery, while erection testing is conducted for individual orders according to the company's stated procedures. Such processes can be relevant for projects where buyers require consistent dimensions and connection accuracy across multiple truss sections.
The company also reports CE, SGS, TUV, BV and ISO9001 certifications, with products supplied to customers in more than 150 countries.
Where Modular Aluminum Truss Can Be Used
The same truss-planning principles can be applied to many temporary structures.
For concert and stage applications, designers may need to account for lighting fixtures, banners and other suspended equipment. LED display structures can require additional consideration of screen dimensions, support points and load distribution.
Exhibition booths may have different priorities because available floor space, ceiling height and venue access can affect the configuration. Product launches, fashion events, theater installations and promotional structures can also require different combinations of truss sections.
Outdoor applications require additional attention to environmental conditions. Wind exposure, for example, can influence the structural requirements of a temporary installation. Such factors cannot be determined from beam length alone and should be included in the project-specific engineering assessment.
Information to Prepare Before Ordering
Providing detailed project information to a truss supplier can make the quotation and technical review process more efficient.
Before ordering, buyers can prepare the following information:
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Total beam or structure span
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Required support points and their positions
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Estimated suspended and distributed loads
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Preferred truss section dimensions
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Required section lengths
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Spigot or bolt connection requirements
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Indoor or outdoor installation conditions
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Surface finish or color requirements
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Certification or inspection requirements
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Technical drawings or engineering specifications
This information gives the supplier a better basis for recommending a configuration. It also reduces the possibility of choosing a truss solely according to the beam length without considering the rest of the structure.
Why Modular Configuration Matters
One of the main advantages of a modular aluminum truss system is the ability to adapt the structure to different project conditions.
A single project may require several section lengths. Another installation may need a larger cross section because of its loading conditions. A touring event may prioritize compact transport dimensions, while a permanent exhibition installation may focus more heavily on assembly efficiency.
For this reason, a truss selection should be viewed as a combination of several technical decisions rather than a simple span-to-size comparison.
The available range of Aluminum Spigot Truss configurations, including different cross-sectional dimensions, tube specifications, connection methods and section lengths, gives project teams more options when preparing stage, exhibition and event structures.
For buyers dealing with unusual spans, heavier loads or complicated support arrangements, providing the actual project information before production can help the manufacturer review the required configuration more accurately.
Final Considerations for Buyers
When comparing aluminum truss systems, it is useful to look at the entire specification instead of focusing on one parameter.
Beam span determines part of the structural requirement, but tube dimensions, alloy, wall thickness, brace arrangement, connection design, support conditions and applied loads also need to be considered. Transportation and installation requirements can further influence the preferred section length.
Jiangsu Shizhan Group Co.,Ltd. provides truss configurations with multiple dimensions, tube specifications and modular section lengths for different event and temporary structure requirements. Buyers can provide their span, loading information, support arrangement and intended application for a more project-specific technical discussion.
Before placing an order, it is advisable to confirm the structural drawings, component dimensions, connection method, loading conditions and applicable inspection requirements. This approach helps ensure that the selected truss configuration is based on the actual installation rather than beam length alone.
For technical details, available sizes and custom configuration requirements, buyers can also review the Aluminum Spigot Truss range and contact the supplier with their project information before production.
https://www.tytruss.com/
Jiangsu Shizhan Group Co.,Ltd. -
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