GSA Federal Acquisition Service
For general questions, contact:
FAS National Customer Service Ctr
Phone: 1-800-488-3111

MAS Multiple Award Schedule - Available offerings include commercial goods and services organized by 12 Large Categories, corresponding Subcategories, and SINs.

MAS Category list:

Download Contractors (Excel)
Facilities - Structures
Category Description
238160 Roofing Products and Services Solutions - TEST - Includes roofing products, services and associated application materials. Includes sustainable, energy efficient/savings solutions, and installation and site preparation, related to and ordered in conjunction with products for repair or replacement of an existing roof.For ordering limitations and information, refer to the Special Ordering Procedures/Ordering Guide posted on
321991 Mobile Homes, Travel Trailers - Includes pre-engineered and/or prefabricated buildings and structures for storage solutions, such as leveling the trailer, maintenance agreements, and design assistance.

NOTE: Excludes construction products and services.
332311 Above Ground Storage Tanks/Systems - Includes all above ground storage tanks, systems, and related accessories.
332311P Pre-Engineered and Prefabricated Buildings and Structures for Storage Solutions - Includes storage structures made of wood, fiberglass, steel, aluminum, metal, tension fabric, pre-cast concrete, etc. All options include accessories and may contain recycled or bio-based materials.

NOTE: The structures and buildings should be able to support emergency and disaster recovery efforts.
Subgroups (not all vendors have been placed within the following subgroups. To view a complete list of vendors, click on the SIN)
  In-Plant Solutions
  Professional Facility Solutions
  Outdoor Shelter and Security Shelter Solutions
  Rapid deployment solutions for for Military, Disaster/Emergency Response
  Restroom, Shower, and Laundry Solutions
  Storage Solutions, SCIFs
332312 Temporary and Permanent Structures - Includes both temporary and permanent structures, such as portable roads, airstrips, helipads, ramps, and bridges.
532490P Lease/Rental of Pre-Engineered/Prefabricated Buildings and Structures - 532490P Includes portable/mobile office buildings, restroom facilities, and temporary living quarters such as mobile homes and tension fabric structures. The lease or rental of these portable structures are suitable for emergencies and disaster recovery efforts.

NOTE: If a contractor's offering requires the product's initial installation at a substantial cost, the contractor will be required to provide a turnkey solution for consideration.
Subgroups (not all vendors have been placed within the following subgroups. To view a complete list of vendors, click on the SIN)
  Lease/Rental of Pre-Engineered/Prefabricated Buildings and Structures
  Lease/Rental of Pre-Engineered/Prefabricated Restrooms and Utility Rooms