The bison is a high-quality handmade workshop and every feature sets the building apart from others. The framing is a mighty 70x44mm (3"x2"), significantly larger than even standard framing giving the building immense strength. The doors are fully framed and braced and they are fitted with a full-length piano hinge for added security. A lock and key are also provided. The high grade 12mm shiplap cladding provides much-improved weatherproofing and longevity. The internal working height is a minimum of 6 feet at the eaves giving a really comfortable working environment for the vast majority of people; again this is significantly higher than much of the cheaper competition. The floor has 16mm strong tongue and groove and the roof has 12mm tongue and groove. The attractive two opening windows are storm resistant, joinery quality frames glazed with 3mm glass. Doors and windows are both pre-hung for ease of assembly. All of the timber is sourced only from very slow grown, high grade, FSC approved, European pine. The building is treated with a basecoat treatment ready for top coating by you immediately after installation. Allowance should be made for the roof overhang and for access around the outside during construction and subsequent treatment. Shire GB Installation Included: Yes