Residential Structural Engineering
Practical Structural Engineering for New Homes, Remodels & Additions
Timberline Structural Engineering works closely with homeowners, architects, home designers, and builders to provide efficient, buildable, and permit-ready structural solutions for residential projects of all sizes.
From small remodels to full custom homes, we focus on designs that are clear, cost-effective, and aligned with how homes are actually built.
We also work directly with your local building department and plan reviewers to answer questions, resolve comments, and keep your permit moving forward. The goal is simple. Fewer delays. Faster approvals. A smoother path from design to construction.
Residential Projects We Support
We provide structural engineering for a wide range of residential project types, including:
New single-family homes
Remodels and renovations
Additions and second stories
Decks and covered porches
Detached shops, barns, and outbuildings
Multi-family and specialty residential structures
Unpermitted structures
Manufactured homes
Whether your project follows prescriptive code requirements or requires custom engineered solutions, we guide you through the process from design to permit and provide support through the construction phase.
Code-Compliant Solutions—Prescriptive or Engineered
Not every home fits neatly into the prescriptive path of the International Residential Code (IRC). Timberline Structural Engineering can:
Help determine if your project qualifies under IRC prescriptive requirements
Provide engineered designs per the International Building Code (IBC) when prescriptive limits are exceeded
Assist with permitting for complex or non-standard designs
This ensures your project meets state and local building department structural requirements while remaining practical and buildable.
Experience Across Construction Methods & Materials
Our residential experience includes structural design for:
Wood-framed construction
Cast-in-place concrete (including Insulated Concrete Forms – ICF)
Precast concrete systems
Autoclaved aerated concrete (AAC / E-crete)
Masonry construction
Structural insulated panels (SIPs)
Structural steel and cold-formed steel
Historic structures and specialty buildings
Energy-efficient and high-performance homes
This breadth of experience allows us to recommend the right structural solution for your design, site, and budget.
Challenging Sites? We’ve Got You Covered
Residential projects in Oregon, Washington, Idaho and Montana often come with site-specific challenges. We have experience with:
Flood zone requirements
High wind and seismic loads
Extreme snow loads
Poor or variable soil conditions
Our designs account for these factors early—reducing surprises during permitting and construction.
Flexible Plan Support & On-Site Observation
Depending on your needs, Timberline Structural Engineering can:
Provide full structural drafting
Review and redline structural requirements on plans prepared by you or your design professional
Perform on-site structural observations as needed
Recommended for remodels and complex projects
Address surprises that can come up in remodel projects
This flexibility helps keep projects moving efficiently while meeting jurisdictional expectations.
For Homeowners
Not Sure If It Will Work?
Confused by Building Department Requirements?Struggling to Turn an Idea Into a Buildable Plan?
We understand that engineering, permitting, and construction can feel overwhelming, especially if you’re not familiar with the building process.
Whether you’re:
Removing a wall
Adding a deck
Remodeling your home
Building a new house
Trying to permit an unpermitted structure
Timberline Structural Engineering can take the guesswork out of your project and give you confidence in your decisions.
We explain requirements clearly, help you understand your options, and provide the engineering needed to move forward.
Proven Residential Experience You Can Trust
With over 2,500 residential projects completed in the past 20 years, Timberline Structural Engineering brings the experience needed to guide homeowners, designers, and builders through both remodels and new construction.
Our focus is always the same:
Clear communication
Practical engineering
Reliable permit-ready documents
Structural Damage Evaluation
Storm, Tree, or Vehicle Damage? We Can Help.
Unexpected events such as downed trees, heavy snow, flooding, windstorms, seismic activity, or vehicles can cause serious structural damage to a home. Timberline Structural Engineering provides professional structural evaluations to help homeowners understand the extent of damage and the next steps forward.
We assess damage caused by:
Fallen trees
Mudslides and slope failures
Flooding and hydrostatic pressure
Severe snow or wind events
Earthquake damage