modern methods of construction, built in a factory.
We produce the cabinetry, panels, and modules that homes are built from, to spec, on schedule.
What We Manufacture.
Three product lines, produced in our Ontario facilities by one team, to one standard. We serve production homebuilders sourcing cabinets for new subdivisions, and developers delivering multi-unit residential, affordable housing, and hospitality projects.
01.
Cabinetry & Millwork
Scaling to thousands of cabinets per week at full rate. Serving production homebuilders, anchored by Mattamy across the GTHA and Ottawa.
02.
Wall & Floor Panels
Engineered to Ontario Building Code. Delivered through Mattamy Homes and Stelumar Communities projects.
03.
Volumetric Modules
Designed for a range of residential building types, from affordable housing, workforce housing, purpose-built rental, student residence, as well as hospitality projects. Delivered through Stelumar Communities projects.
→ See how Communities uses modules
BUILT TO A HIGHER STANDARD WITH LESS WASTE,
ON A SCHEDULE YOU CAN PLAN AGAINST.
Quality and sustainability are what manufacturing makes possible. Schedule, predictability, and cost are why the model scales.
Quality
Our facilities are automated, not hand-tooled.
Cabinetry and panels are produced on robotic lines with CNC cutting and automated assembly holding tolerances every day that skilled trades can only match on a good one, and every component is inspected against its original drawing before it ships. Defects are repaired or rebuilt, not delivered. Every unit carries its job, lot, and shift number, so any question six months after installation traces back to who built it.
Sustainability
Cutting is algorithm-optimised across both cabinetry and panels, with software nesting components to reduce wood waste.
Wall panels are insulated with cellulose, a material with a meaningfully lower embodied carbon footprint than conventional alternatives, and framed on wider stud spacing to reduce thermal bridging, which lowers operational carbon over the life of the building.
Schedule & Predictability
Cycle time is the greatest advantage of this manufacturing model, and the biggest one.
Wall panels and fully fitted modules are produced in the factory in a fraction of the time field framing would take, and running production in parallel with site prep compresses total delivery meaningfully. Because the manufacturing workforce is distinct from the field-trades pool, that schedule holds, you're not competing with every other project in the region for the same labour.
Value at Scale
Built to your specs, at production scale.
Production residential cabinetry and millwork built to your specs. Standardized line production keeps per-unit cost predictable across large orders, whether you're delivering one subdivision or many.
Why Stelumar.
Factory-built residential has a mixed history in Canada. The attempts that struggled share a pattern: undercapitalised manufacturers, order books that couldn't load the factory, and operators learning on the job.
Stelumar was built to remove those failure modes from day one.
Mattamy Homes as Canada's largest homebuilder, committed the order book that lets us operate at scale from the start.
The factory is purpose-built for manufacturing, not retrofitted; and Mattamy’s decades of homebuilding experience flow directly into how we design and deliver.
Where to go from here.
Cabinetry & Millwork
Production cabinets built to your drawings, scheduled to your build.
Stelumar Communities
Modular-built project delivery for residential and hospitality developers. Panels and modules manufactured in our Ontario facility, wrapped in as much of the surrounding project scope as you need.