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Truss and rigging

TOMCAT 12 × 12 Plated: identification, bolts and load-chart scope

Distinguish the Light-Duty 12 × 12 Plated family from other TOMCAT truss, then check connection identification, chart revision and support conditions.

Identify the truss

This guide concerns conventional TOMCAT Light-Duty 12 × 12 in Plated straight truss with bolted end connections. Spigoted, Guardian and Center Chord products are separate variants; the same nominal size does not identify the connection or its capacity.

Section and connection references

Published construction
Main chords: 2 in OD × 1/8 in wall; diagonals: 1 in OD × 1/8 in wall.
Example straight-section reference
TC 1212-120B: 10 ft. Confirm the actual label and length rather than assigning that code to every section.
Selected chart
September 2024 data sheet with deflection limited to L/100. Use its own notes; do not combine it with a chart based on a different limit.

The selected chart concerns a static simple span supported at its ends, with stated load direction and panel-point attachment conditions. Cantilevers, dynamic loads, multiple axes and off-center loading require qualified approval. Its distributed-load and per-point columns answer different questions.

Separate profile, connection and project configuration

Describe the function, tentative geometry and supported equipment to compare a truss option. Nominal section and section length do not identify the assembly: the Plated variant, end plates, hardware and project supports also matter. Confirm the applicable Part 2 and tightening instructions before assembly. Do not substitute a procedure from another series or a table using a different deflection criterion.

Parts and supporting documents

Identify the specified bolts, nuts and connection arrangement, plus approved supports and load attachments. The general manual Part 1 must be used with the product-specific Part 2. Keep those instructions with the job; a sheet of tube dimensions is not a complete assembly procedure.

Prepare the configuration

  1. Record family, section codes, lengths, inspection status and the chart revision used in the drawing. Resolve unidentified or mixed components before assembly.
  2. With unloaded modules safely supported, compare the mating end plates and hole alignment. Inspect for distortion, cracks and worn holes. Do not draw misaligned modules together with bolts or excessive force.
  3. A competent person must confirm the connection hardware and tightening instructions. Use the specified torque wrench procedure; do not adopt a generic torque or copy a value from a different connection.

Selection, quotes and troubleshooting

The plate holes do not line up. Can I tighten the bolts to pull the trusses together?

Stop and keep the modules unloaded. Compare references, orientation and visible end-plate condition first. The manual calls for alignment without excessive force; permanent plate distortion and worn holes are inspection concerns. Do not drill or grind the holes. Have the responsible competent person assess an unresolved mismatch before use.

Can every bolt on a Plated truss be tightened to one internet torque value?

Do not assume so. Identify the supplied bolt, nut and any threaded component, then consult the applicable product-specific instructions together with Part 1. The general manual’s torque statement has a threaded-steel-component condition; it is not a substitute for identifying the connection. Record the approved setting and tightening check before loading.

To discuss equipment or assistance for a quote, identify the sections and fasteners already known and the missing documents. We can assess completing an assembly with documented hardware or alternative supply for the intended function. A same-diameter replacement bolt is not enough: the connection and product-specific instructions must match the system. The inquiry can start before the inventory is complete.

Does the load chart cover a corner, tower or moving load?

Not through the simple-span table alone. Compare the actual supports, orientation and attachment points with the chart’s assumptions. Check its notes on repetitive use and deflection criteria with the designer. Do not subtract truss self-weight a second time from data that already accounts for it, or convert a distributed rating into permission for one central load. Obtain a qualified assessment for cases outside the chart.

How do we plan lighting and a backdrop for a conference or awards presentation?

Start with the intended effect and tentative position of each element so we can compare a truss line with another equipment layout. Identify the Plated connection, references and supports; the Light-Duty name alone does not establish a safe application. A corner or three-dimensional structure needs its own documented case, even when it uses the same sections.

For a conference or awards presentation, sketch the lectern, panel, presentation and photo positions alongside screens, cameras and circulation routes. We can compare lighting and scenic backdrop positions, including an alternative with documented independent supports. This lets us discuss the visual result before fixing the geometry; any alternative must also account for its floor footprint and access routes.

The proposal can distinguish truss sections and connections, supported equipment, and the scope of installation, removal and event assistance. Tell us whether the venue permits suspension and who provides information on its rigging points; authorization is not assumed. Identify logos, drapes and other backdrop elements during the inquiry. Their loads, attachments and the complete system must be confirmed before installation. Ask about availability when preparing the proposal.

What can we prepare if the equipment is already in storage?

An inventory of labels, lengths, plates and hardware, with inspection status and available documents, helps guide the inquiry. We can discuss those pieces or alternative supply and assistance to be agreed on. Remote review does not release the assembly for use; applicable Part 2, hardware and torque requirements must be resolved before assembly.

Limits before installation

Isolate suspect components and retain their labels for inspection. Do not weld, heat-straighten or alter a plate as an on-site remedy. Installation and disassembly require competent supervision and the manufacturer’s applicable instructions; this guide does not approve the project or authorize lifting people.

Manufacturer documentation

Technical documentation consulted on October 22 and October 23, 2026.

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