This is a 4.0 metre section of OV40 square (quad) lighting truss manufactured by Total Fabrications, part of the Total Solutions Group in the UK. OV40 is a 400 x 400 mm four-chord truss used to build lighting rigs, ground-support structures, stage roofs, exhibition stands, LED screen and video wall supports, and architectural or gallery installations in the events, theatre, touring and presentation industries. It is designed to the latest Eurocodes and manufactured to EN1090-1, with brace patterns engineered around the most common slinging and support methods and custom Total Solutions extrusions, giving comparatively high load capacity for a low self-weight. Sections join quickly with conical connectors secured by TFC pins and R3 clips, and the 4 m length is combined with shorter 0.25 m to 3 m sections, corners and junction blocks from the same OV40 range to build complete structures. Total Solutions quotes a uniformly distributed load of 1,450 kg over a 9 m span for OV40 and publishes a full load table for other spans and point-load cases; always consult that data and a qualified rigger before loading. Total Solutions lists the 4 m section at 4000 x 400 x 400 mm.