Main frame profile size for bt series: 204x120x4mm Wind load: 100km/h Optional accessories of wedding marquee: Ground anchor, anchor puller, weight plate, glass door, fire door, glass wall, abs hard wall, lining, flooring system, clear pvc windows, ramp, transport rack etc Materials: Fabric: high quality double pvc coated polyester fabric, 750-900g/sq. M, water proof, uv resistance, fire retardant according to standard nfpa701, cfm & din4102 b1/m2 Frame: high quality hard pressed extruded aluminum 6061/t6, anodized surface finishing. Connections: hot-dip galvanized Clear span length from 10m to21m