... concert:Specfication: ItemSpecificationUnitWeight(kg) PillarDiameter*Height*Thickness48×1,000x3mmpc4.3548×1,500x3mmpc6.5348×2,000x3mmpc8.748×2,500xmmpc10. ... ,000x3mmpc13.05 Horizontal pipeDiameter*Length*Thickness48×914x2mmpc448×1,570x2mmpc5.848×1,829x2mmpc7.548×2,046x2mmpc8.3 Diagonal pipeX ... ,strength versatility .low unit weigth and easy of assembly in combination .3) The span maximal is 16m ...