Specifications include, but are not limited to: A. Description 1. Type – Office/laboratory design.; 2. Ceiling Height – 84 in minimum, 96 in maximum inside height measurement.; 3. Width – Not to exceed 102 in.; 4. Length – 25 ft floor length, 30 ft overall length.; B. Frame 1. Type – All steel welded construction.; 2. Size – 6 in minimum channel with adequate cross members spaced at 16 in centers.; 3. Requirement – Main rails and cross members to be constructed of 15 gauge steel.; C. Under Carriage 1. Type – Tandem axle design.; 2. Capacity – 14,000 lb total.; 3. Ground Clearance – Must have a minimum of 16 in ground clearance to frame rails. Maximum ground clearance must not exceed 18 in.; 4. Springs – Torsion axles.; D. Structural Framing 1. Type – Complete steel structure and welded.; 2. Structural Framing – 2 in square tubing or 14-gauge hat shaped studs for walls and ceiling.; 3. Construction – Vinyl electrolytic barrier between steel studs and aluminum exterior. Aluminum exterior to be fastened with stal-guard coated fasteners and bonded.; 4. Studs – Spaced on 16 in center.; E. Floor 1. Type – Plywood CDX underlayment securely fastened to floor joists, with silicon sealer and corrosion resistant screws.; 2. Thickness – 1-1/4 in. total thickness.; 3. Underside – Sealed to weather and rodent-proof with undercoating.; 4. Undercoating – Complete trailer chassis to be undercoated.