Structural Design that Survives Construction, Occupancy, and 50 Years of Change

Structure is the Commitment that Outlasts Everything Else

Finishes are replaced every 10 years. Mechanical equipment turns over every 20 years. Tenants, uses, and layouts change faster than either of them. The structural frame is the one system that remains the same 50 years after the ribbon is cut. That makes every structural decision a commitment, and the quality of the commitment depends on whether the engineer understood the loads the building would actually carry, not just the loads the original program specified.

DWE's structural team designs for the building's useful life, not the design life of the first occupancy. We pay particular attention to future modification: where openings might be cut for future tenant reconfigurations, how renewable loads on the roof will stack against snow and live loads over time, and how structural transparency (visible framing, legible load paths) will help or hinder the renovations that inevitably come.

Material-Agnostic Design

Concrete, steel, cross-laminated and glue-laminated timber, cold-formed and hot-rolled hybrids, the right structural system is the one that delivers the required performance at the best-available cost and carbon profile for the specific site, schedule, and market. We don't have a house material. Our team designs in concrete, steel, wood, and hybrid systems every year, and our specification reflects what the trade market in the region can actually deliver on schedule, not what a design handbook prefers.

Mass timber is a particularly good example. It earns its premium on certain projects, not on others, and the gap has more to do with labour markets, supplier access, and fire-rating constraints than with the inherent merits of the material. We price both options and show the client the real tradeoff, with embodied-carbon implications quantified where the project targets require it.

Seismic, Snow, Wind, and the Reality of Canadian Climate

Canadian structural design is unforgiving. The 2020 National Building Code updated seismic hazard values across most of the country. Snow loads in the Prairies and Atlantic provinces remain among the highest in the developed world. Climate-driven shifts in rain-on-snow events and high-wind exposure are pushing load combinations into territory that isn't yet fully reflected in code precedent. Our team works in accordance with the current National Building Code of Canada and provincial building codes. Where our clients are pursuing high-performance or resilience targets, we model loads against realistic future-climate scenarios rather than the historic record alone.

Renovation, Adaptive Reuse, and Damage Assessment

More than half of the structural work in our market is on buildings that already exist, renovations, additions, tenant reconfigurations, and damage assessments following fire, flood, vehicle impact, or long-deferred maintenance. Those projects are harder than new construction, not easier. They require site investigation, load-path reconstruction from incomplete record drawings, and temporary-support engineering that keeps the building standing while the work is done. Our structural team runs a dedicated renovation and assessment practice because that's what our clients actually need help with.

Structure Coordinated to Your Design, Your Schedule, and Your Trade Scope

Working alongside an architectural lead, our structural engineers design to your spans, your column-free bays, and your exposed-frame vision, and we flag the cost-consequential moves early enough that you can trade them off with real numbers in front of you. In developer-led programs, structural sizing is calibrated to the market product you are actually building, not to the most conservative assumption, so value engineering happens at schematic rather than in a panic at tender. On design-build and trade projects, drawings are sequenced to reflect how formwork, rebar, and steel erection actually occur, and structural RFIs come back in days rather than weeks.