Metal Building Frame Guide: Tube Frame vs. Iron Frame
Metal buildings are versatile structures that last for generations when designed and built. Steel is one of the most durable building materials because it resists decay and insects.
When shopping around for a residential metal building, one of the most common questions is what are the differences in frame materials and do they matter? Each frame material has its advantages and disadvantages. The guide below aims to help you decided on the right building for your needs.
Tube Framed Metal Buildings
Tube framed metal buildings are framed with hollow metal tubes. Most tubes are square, but round and rectangular tubes are also an option. They typically have horizontal siding because they do not have girts to mount the wall sheeting horizontally.
Pros
Inexpensive
Lightweight
Typically requires less robust/expensive foundation
Easier to assemble - great for DIY projects
Higher corrosion resistance
Uprights typically spaced 4′ on center for direct attachment of interior walls
Red iron requires false walls or furring strips
Cons
Lower strength
Harsh weather can damage light-weight tube framing
Lower eave heights and smaller bays required to meet wind loads
Less durability
For a metal building needed to stand the test of time, other framing materials should be considered
Iron Framed Metal Buildings
Rigid iron framed metal buildings are constructed from red iron structural steel. Columns and rafters are commonly constructed of I-beam or tapered built up members. Their design allows for large, strong buildings to be quickly erected.
Red-iron is recommended if you need:
Large bays and clear spans
Lofts, mezzanines or second floors
Cranes and hoists
Pros
Strong, durable, reliable
Much more likely to survive extreme weather events like hurricanes
Higher eave heights and larger bays provide more versatility
Cons
Higher price tag
More expensive in materials and erection labor
Requires stronger foundation
Engineered foundation typically recommended
Not as DIY friendly
Framing is much heavier and requires large machinery to move into place properly/safely
More prone to corrosion
Galvanized material is recommended for coastal areas
Still can't decide? Call Texas Steel at 832-314-3555 and tell us about the project you have in mind. We can help you determine the best frame for your metal building project.
