American Steel Buildings, LLC   1-800-511-3670      Copyright 2010 Home  I  About Us  I  Contact Us  I  Buying Process  I  F.A.Q. Main Frame Description:  An assemblage of rafters and columns that support the secondary framing members and transfer loads directly to the foundation. An Expandable Frame is designed to support any future building additions with the same width and height that will tie-in to this frame A Non-Expandable frame is used when X-bracing is not allowed in the Endwall. It provides added structural support, compared to the bearing frame It is also used in Hangar Buildings to support the Header system for the hangar doors in the Endwalls American Steel Buildings Types of Main Frames - Agricultural - Aircraft Hangars - Automotive - Boat Storage - Church Buildings - Commercial/ Retail - Custom Design - Equestrian - Manufacturing - Mini-Storage - Office Buildings - Personal Garage - Pre-Engineered - Recreational - Warehouses Roof Panels PBR Double-Lok Retro-R Craftsman Lok-Seam Wall Panels PBR PBA PBU Insulated Panels Liner Panels Color Charts Ultra-Dek Batten-Lok Super-Lok Traditional Shadow-Rib Nu-Wall Primary - Gable Symmetrical - Gable Unsymmetrical - Single Slope - Lean-To Secondary - Purlins - Girts - Eave Struts - Base Condition - Building Design - Quote Request - Canopies - Eave Trim - Framed Openings - Insulation - Louver Vents - Mansards/ Facades - Overhead Doors - Parapet Walls - Partition Walls - Purlin Extensions - Roof Vents - Skylights/ Wall-Lights - Sliding Doors - Walk Doors - Windows Home > Building Design > Expandable Frame Steel  Buildings American