Framing Systems
Every Robertson frame is designed individually and manufactured specifically to meet the requirements of your building. There are three main categories: Clear Span, Multi-span, and Lean-to. If your building is an arena or place of worship, you may need the column-free interior clear space offered by Clear Span frames. If you are on a tight budget, Multi-span frames may be the best choice. To add an office building to a warehouse or manufacturing facility, consider using a Lean-to structure.
Primarily used for expansion or extension of a building, lean-to frames can provide additional space very economically. They are commonly used to provide additional office or storage space for a larger building. A lean-to frame typically has a single slope profile (no ridge) and straight sidewall columns. It must be supported by attachment to another frame.
Clear span frames are most often used in buildings where unobstructed interior space is required.
Multi-span frames are commonly used for building layouts that permit interior columns.