PUF vs MS frame systems
Where panelised PUF construction outperforms a steel frame build — and where it doesn't.
- Load profiles
- Insulation needs
- Lifecycle cost
At a glance
PUF panels vs MS frame.
The two structural approaches we use most. The right one depends on load, climate, and how the unit will be used — not on which is 'better'.
| Attribute | PUF panels | MS frame |
|---|---|---|
| Core structure | PUF / sandwich panels | MS steel frame + cladding |
| Thermal insulation | Excellent (low U-value) | Good (depends on infill) |
| Build speed | Very fast — panelised | Fast — fabricated frame |
| Structural load | Light to moderate | Moderate to heavy |
| Relocatability | High | High (modular bolt-down) |
| Best suited for | Offices, cabins, cold rooms | Multi-storey, heavy-duty units |
Core structure
- PUF panels
- PUF / sandwich panels
- MS frame
- MS steel frame + cladding
Thermal insulation
- PUF panels
- Excellent (low U-value)
- MS frame
- Good (depends on infill)
Build speed
- PUF panels
- Very fast — panelised
- MS frame
- Fast — fabricated frame
Structural load
- PUF panels
- Light to moderate
- MS frame
- Moderate to heavy
Relocatability
- PUF panels
- High
- MS frame
- High (modular bolt-down)
Best suited for
- PUF panels
- Offices, cabins, cold rooms
- MS frame
- Multi-storey, heavy-duty units
The guides
Browse comparison guides.
Deeper reads on the decisions that shape cost, comfort, and durability across a modular build.
Thermal performance choices
Insulation thicknesses and materials weighed against your site's climate and energy targets.
- U-value basics
- Climate matching
- Running costs
External finish options
Durability, upkeep, and appearance across the most common external finish systems.
- Weather resistance
- Upkeep effort
- Appearance range
