Building Systems
Pre-engineered metal buildings
A pre-engineered metal building is not a catalog product with your name on it. Every frame is engineered for the wind, snow, seismic, and collateral loads at your specific site, then fabricated to those drawings. That is why two buildings with identical dimensions can carry very different steel weights and prices.
How the system works
Primary framing
Tapered built-up rigid frames carry the building's gravity and lateral loads. Depth varies along the member because the bending demand does, which is where the weight savings come from.
Secondary framing
Cold-formed Z-purlins and C-girts span between frames, brace the primaries, and support panels. They also distribute wind loads back into the frame line.
Bracing system
Rod, cable, or portal bracing resists lateral wind and seismic forces. Bracing placement has to be coordinated with door and dock locations early.
Panels and envelope
Roof and wall panels act as weather barrier and, in many systems, as diaphragm elements. Panel profile, gauge, and finish are selected for exposure and service life.
Advantages
- ▸Wide clear spans without interior columns
- ▸Engineered member-by-member, so no steel is wasted on unloaded sections
- ▸Shorter erection schedule than field-fabricated conventional framing
- ▸Predictable, quantified package scope for budgeting
- ▸Non-combustible, dimensionally stable, and pest- and rot-resistant
- ▸Straightforward future expansion when an expandable endwall is ordered
Honest considerations
- ▸Loads, openings, and collateral loads must be defined before engineering is released
- ▸Late changes after fabrication starts are expensive
- ▸Thermal bridging at framing requires a deliberate insulation strategy
- ▸Foundation design is a separate local engineering scope
- ▸Complex or multi-story geometry may favor conventional framing
Common applications
Steel Garages
Secure storage for 2–6 vehicles, tools, and seasonal gear.
Steel Workshops
Heavy-duty shops for mechanics, welders, and hobbyists.
Barndominiums
Turnkey shell packages for modern steel homes.
Agricultural Buildings
Barns, equipment storage, hay barns, and horse arenas.
Commercial Buildings
Warehouses, retail, offices, and distribution centers.
RV & Boat Storage
Tall-eave storage for RVs, boats, and toy haulers.
Aircraft Hangars
Bifold and hydraulic-door hangars for GA aircraft.
Steel Warehouses
Clear-span warehouses from 5,000 to 100,000+ sq ft.
Manufacturing Buildings
Heavy-duty plants engineered for cranes and process loads.
Distribution Centers
Large-format distribution hubs with dock-high loading.
Steel Office Buildings
Pre-engineered office shells finished to conventional standards.
Retail Buildings
Retail shells with storefront glazing and architectural facades.