What is a truss circle and what is it made of?

A truss circle is a special event technology component: a closed ring built from curved aluminium truss segments. It is made from high-grade aluminium alloy EN-AW 6082 T6 (AlMgSi1), the established material for professional truss. The load-bearing chord tubes are bent to a defined radius and joined with standardised conical connectors, bolts and safety splints. A truss circle combines low weight with high load capacity, which makes it suitable for both mobile touring use and static installations in fixed venues such as clubs, theatres and trade fair halls.

Which diameters are available for truss circles?

Truss circles at LTT are offered as standard with a diameter from 2 m up to 10 m, measured from the outer edges of the ring. If you need a larger ring, custom sizes and circles over 10 m diameter are available on request. The diameter you choose should match your ceiling height, stage width and the visual proportion you want to achieve. A 3 to 4 m circle suits most trade fair stands and smaller stages, while a 6 m circle or larger creates a dominant lighting ring for big venues and concert stages.

How many segments make up a complete truss circle?

A complete truss circle is composed of multiple segments, and the number depends on the diameter. As a guide, a 2 m circle uses 2 or 4 segments, a 3 to 4 m circle uses 4 segments, a 5 to 6 m circle uses 8 segments, and circles from 7 m up to 10 m use 8 or 12 segments. Common cuts are 90°, 360° and 1.5 m segments. Each segment can also be installed on its own, so you can build full rings, half circles or single arcs from the same parts using standard conical connectors.

Which truss types can be formed into a circle (1-, 2-, 3- or 4-point)?

Truss circles can be built from several truss profiles. You can form a circle from 1-point truss (such as FD21 or FD31) for light decorative arcs, from 2-point truss in horizontal or vertical orientation, from 3-point truss with the triangle tip pointing inside, outside, up or down, and from 4-point truss for maximum rigidity. The 4-point circle is the most popular choice for lighting rings and prominent trade fair stands because it carries fixtures on all four faces and looks symmetrical from every viewing angle.

Can truss circles be ordered in custom sizes and RAL colours?

Yes. While LTT offers Naxpro-Truss circles as standard from 2 m to 10 m diameter, custom sizes and circles over 10 m can be manufactured on request thanks to our own production in Germany. Truss circles are also available in all common RAL colours, so the construction matches your stage design or corporate branding. A black powder-coated finish is a popular option for concert and club applications, typically available at a surcharge and with a slightly extended lead time. Natural mill-finish aluminium remains the standard delivery option.

What load capacity (WLL) do truss circles offer?

The working load limit (WLL) of a truss circle depends on the series, the diameter, the segmentation and the suspension concept. A heavy-duty 4-point HD31 circle carries considerably more than a light FD21 ring, and a smaller diameter with more evenly distributed suspension points always handles higher point loads than a large, sparsely rigged circle. Because the load distribution of a curved truss differs from a straight span, you should never estimate capacity by eye. Request the load data for the specific diameter and segmentation, and have flown circles verified by a qualified rigger before adding fixtures.

What does a truss circle cost?

The price of a truss circle scales with diameter, segmentation, series and finish. Smaller 2 m circles start in the lower hundreds of euros, while large 10 m, 12-segment rings in a heavy-duty series cost several thousand euros. A powder-coated RAL or black finish adds a surcharge over natural aluminium. Because every project differs, the most reliable approach is to configure your circle by diameter and truss type in the LTT shop, where current prices are shown. B2B resellers can also request dedicated wholesale conditions through the LTT dealer network.

Which truss circle suits a trade fair stand?

For a trade fair stand, a 3 to 4 m diameter circle built from a 50 mm 4-point truss such as the Naxpro-Truss FD31 series is usually the optimal solution. This size fits typical booth dimensions, carries signage and lighting on all four faces and creates a clear focal point that draws visitors. If you only need to frame a banner, an illuminated circular banner frame works well, while a lighter 1-point or FD21 circle suffices for purely decorative arcs. Match the chord tube to any truss you already own so the circle and straight truss share connectors.

Truss circles

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Naxpro-Truss F 23 Truss Circle 4 m Top Inside Truss domes, truss circles and stages with round roofs have one thing in common: constructions with bent elements are always an optical highlight....

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