Shipping Container Barn Construction

I am planning a workshop/storage structure in Franklin County, NC and would like to see whether this concept is structurally feasible and what it would cost for engineering and stamped drawings. Project concept I have three shipping containers: Two 40-ft containers on the sides One 45-ft container at the rear My preferred design is no outside posts. I would like the roof/trusses to sit on the containers, not on a separate pole-barn frame. Proposed layout Roof type: gable Roof size: approximately 45 ft wide × 40 ft long Trusses: approximately 45-ft span Two 40-ft side containers form the sides One 45-ft rear container is flush across the back Approximate clear center bay between side containers: 29 ft Important design intent I want to explore a design where: the roof is supported by the two 40-ft side containers there are no exterior posts the 45-ft rear container serves as the back wall/storage area the center remains open for workspace/equipment What I need reviewed Please let me know if you can evaluate and design: Whether the two 40-ft containers can structurally support the roof system Required beam/header size on top of the containers, if needed Truss-to-container / truss-to-beam connection details Wind/uplift and lateral bracing requirements for this location Any required reinforcement to the containers Foundation/support requirements under the containers Stamped drawings for permit, if feasible

Project ID: 40308153

Location: North Carolina, United States