Welcome to Guinn Structural, your structural engineering consultant and design firm based in Oklahoma.  Our services include structural framing and foundation plans with structural calculations available upon request for submission to code officials for permitting purposes if required.  Our services specialize in residential new builds utilizing traditional sawn wood, wood trusses, laminated veneer lumber (LVL), stick platform framing and stick balloon framing and conventionally reinforced concrete stem walls with footings, isolated spread footings and piers with grade beams.  Our niche experience includes aluminum storefront and curtain wall as well as custom-engineered combustion equipment and pressure vessels.