Structural Engineering

Structural Design Services

Many types of building materials or combinations of the following:

→ Steel

→ Cast in Place Concrete

→ Precast Concrete, Masonry

→ Light Gauge Metal Framing

→ Post Framing

→ Wood Framing

→ Glu-lam & Heavy Timber

→ Sheet Pile & Steel Pile

→ Helical Pile Foundations

→ Helical and Geo-Lock Anchors

Our Expertise

Multi-Family, Multi-Story Residential

Schools, Hospitals, Motels/Hotels

Nursing Homes & Long Term Care Facilities

Steel Stud Framing Design

Industrial & Manufacturing

Commercial, Retail, Offices

Cold Storage Facilities

Churches

Industrial Warehousing

New Residential, Remodeling, Sunrooms, Screened Porches

Inspections of Commercial & Residential Buildings for Structural Defects

Solar Framing

Post Frame Buildings & Post Frame Houses

Engineered Foundation Plans for Businesses, Garages, Homes and Manufactured Homes

HUD Inspections and Certification of Manufactured and Modular Homes

Farm Product Storage Facilities

Grain Bin Slabs

Fertilizer & Potato Storage

Livestock Facilities

Stacking Slab Barns (NRCS)

Our Work

Picture 1 is an Apartment Complex which Duffy worked on.

Picture 2 & 3 show the Virnig Manufacturing Facility in Central MN and Solar Panels that were added to their plant. Duffy Engineering worked on the installation of these panels.

What Our
Clients Say

“

I’ve worked with Duffy on two separate occasions. They are unbelievably friendly, professional and flexible. Great experience! I highly recommend!

Five Star Google Review

“

Great engineers and services. Residential, commercial, industrial. They can do it all, and at such reasonable prices.

Five Star Google Review