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Lighting or stage truss is typically fabricated from 2-inch round aluminum tubes referred to as chords. Truss sections generally consist of 2, 3 or 4 chords. Two Chord Light truss is often referred to as Ladder Truss, Three Chord Truss are often referred to as Triangle Truss and Four Chords would be a Box Truss. The diagonal members or webbing in the truss is generally a smaller diameter round tube. There are a variety of connections available on the market that provide an array of different strengths and load ratings.