As your company grows, so does the need for floor space and storage. Installing Steel Mezzanines in your warehouse or factory can double the space you have by adding a secondary floor above the warehouse floor. This new level provides you with more storage or even office space, without taking up any additional room. br br Panel Built, Inc. is one of the fastest growing companies in the modular construction industry. From inplant offices to mezzanines to ballistic rated guard houses, we have one goal, "To Solve Our Customers Space Needs with Excellence and Great Customer Service.