General description Add that WOW factor to your garden with this gorgeous Leviathan pergola. This 5m x 3m structure is perfect for placing over your garden furniture, creating a lovely entertainment area to enjoy with friends and family. It is also great for supporting climbing plants, thanks to the large sturdy posts that hold the Leviathan Pergola. Technical specifications Overall External Dimensions: 5.15m x 3.20m (16' 10" x 10' 5") External Width: 4.97m (16' 3") External Depth: 3.03m (9' 11") Ridge Height: 2.33m (7' 7") Internal Width: 4.67m (15' 3") Internal Depth: 2.73m (8' 11") Internal Eaves Height: 2.12m (6' 11") Upright Posts: 120mm x 120mm Material: Pressure Treated Timber Guarantee: 10 Years on Pressure Treated Timber against Rot and Insect Infestation Installation DIY Assembly: All fixings and instructions included Foundation: Recommended flat, level, square concrete base with at least 100mm allowance on each side Example: A 4m by 3m building would require a base of 4.2m