What Engineering Inputs Are Required Before Designing a Light Steel Home? | ESS

Architectural and Geometric Inputs

Geometry defines the load paths, so it must be dimensioned and agreed before sizing starts.

• Dimensioned floor plans, elevations and sections for every storey
• Roof geometry including pitch, hips, valleys and overhangs
• Opening schedule with sizes and positions for doors and windows
• Positions of heavy items: stairs, water tanks, HVAC plant, balconies

Load and Hazard Inputs

Residential loads are modest, but lateral loads and point loads are not.

• Dead and live load criteria from the governing code
• Design wind speed, exposure category and altitude
• Seismic zone, soil class and ductility requirement
• Snow load and drift where the roof geometry creates accumulation

Site and Service Inputs

Foundation and services decide constructability as much as structure does.

• Soil bearing capacity and foundation type, or a geotechnical report
• Finished floor level and flood or drainage constraints
• MEP riser and penetration strategy through the steel frame
• Local code edition, permit requirements and inspection regime

Frequently Asked Questions

Can design start from a sketch?

Preliminary sizing can, but production drawings cannot. Member sizes and bracing depend on dimensions and loads that a sketch does not define.

Who is responsible for the structural design?

Responsibility is agreed contractually. Typically the manufacturer designs the frame system and a local engineer verifies it against local code and site conditions.

How late can the layout change?

Before shop drawings are issued. After that, roll-formed profiles and cut components may already be committed.