Welcome to Guinn Structural, your structural engineering consultant and design firm based in Oklahoma.  We understand that your home is your largest asset, as well as any accessory dwelling units and rental properties you may own.  Our services are designed to ensure your assets are built to last.  Guinn Structural's main office is located in Broken Arrow, Oklahoma.  We provide comprehensive services, including drawings and structural calculations that are available upon request for submission to code officials for permitting purposes if required.  Our services specialize in residential additions, alterations and new builds utilizing traditional sawn wood, laminated veneer lumber (LVL), laminated strand lumber (LSL) stick platform framing and stick balloon framing and reinforced concrete wall footings, spread footings and piers.