... 12m, 15m, 20m, 25m, 30m, 40m & 50m with a standard side height 4.0m. These structures are modular ... big tent structures are available with a complete range of accessories including sidewalls with clear windows, ground anchors, ... and high peak roof conversions. Big tent series with professional design can be wind loading 100km/hour( ... temporary or permanent building. industry tent with solid wall 25x40m