About This Item Features Dimensions Internal: 3590mm x 7040mm / 11ft 9ins x 23ft 1in Dimensions External: 3730mm x 7180mm / 12ft 2ins x 23ft 7ins Ridge Height Internal: 2644mm (8ft 8ins) Ridge Height External: 2807mm (9ft 2.5ins) Eaves Height Internal: 2040mm (6ft 8ins) Eaves Height External: 2100mm (6ft 11ins) Roof Ma