
Built around cow comfort, not a catalogue width.
Engineered fabric free-stall, calf and loafing buildings for Ontario dairy operations — natural daylight, ventilation and clear-span layouts installed turnkey.

Daylight and airflow the herd actually gets.
Ontario dairies increasingly choose fabric-covered free-stall and calf housing over dark insulated steel barns for the daylight and natural airflow the membrane and ventilation system provide. The clear span keeps stall rows, alleys and parlour access free of interior posts, and the frame is engineered to the herd size and layout you're running today, with room to grow.
- →Pony-wall foundation designed and poured in-house
- →Stall, alley and parlour layout coordinated before the pour
- →Stamped engineering for any Ontario snow and wind zone
- →Membrane warranty terms confirmed in the issued documents
Daylight the Herd Notices
Translucent membrane reduces reliance on artificial lighting and gives stalls and alleys a consistent daylight profile.
Natural Ventilation by Design
Ridge vents and curtain side-walls are laid out around the herd, helping manage humidity and ammonia year-round.
Durable in a Barn Environment
Galvanized frame and inert membrane hold up to moisture and washdown without a rusting roof deck.
Clear-Span Stall Rows
No interior columns — stall rows, alleys and parlour access are laid out around your herd management plan.
Herd size and layout first.
A dairy building is sized around herd size, stall configuration and workflow — not a standard width. These are the inputs we use before any dimension is quoted:
- →Herd size and stall configuration — free-stall, tie-stall or loafing
- →Whether the building includes calf housing, a parlour or robot area
- →Alley width, feed access and manure handling equipment
- →Ventilation needs across the seasons for the herd size planned
- →Utility and equipment pad requirements for milking systems
- →Room for expansion if herd size is expected to grow
Send those details and we will come back with a building size, a foundation approach and a preliminary budget range. Preliminary figures are for budgeting only — final pricing follows engineering, site conditions and the configuration you select.
Get a preliminary project budget
The pony wall and airflow are engineered together.
A permanent dairy building is built on poured concrete pony walls with the frame springing from a continuous top plate. We design the pony wall, the ventilation openings and the utility pads for milking equipment as one system, then pour and build with our own crews so there is no scheduling gap.
- →Pony-wall height and reinforcing sized to the frame
- →Manure and washdown drainage coordinated with the pour
- →Ridge and curtain openings sized for the herd and season
- →One contract from foundation through membrane tensioning

What we walk through before drawings start.
Drainage and manure handling
How washdown water and manure are managed around the building relative to storage, wells and watercourses.
Alley and approach
Feed delivery, herd movement and equipment access routes planned around the building footprint.
Foundation type
Poured concrete pony walls sized to the frame and stall configuration you're running.
Approvals
Stamped drawings for your municipality and any nutrient management or agricultural zoning conditions that apply.
Manure handling, drainage and approvals are what determine whether a dairy building fits your operation. We plan them with the building rather than after it.
Different herds, different layouts.
Free-stall dairies
Clear-span stall rows and alleys laid out for milking parlour or robot workflow.
Calf and heifer operations
Group-pen or individual housing with daylight and ventilation planned into the layout.
Loafing and transition housing
Flexible bays for dry cows, transition groups or seasonal herd management.
Expanding operations
Buildings designed with room to add stalls or bays as the herd grows.
Where to go next.
Livestock Buildings
Natural ventilation and daylight for beef, swine and poultry.
ExploreHay Storage Buildings
Feed storage under clear-span cover.
ExploreAgricultural Buildings
All fabric building applications for Ontario farms.
ExploreHorse Riding Arenas
Clear-span equestrian arenas with natural daylight.
ExploreFoundations
Pony walls and slabs designed and poured in-house.
ExploreCost Guide — Ontario
What actually moves the budget on a farm building project.
ExploreSend your project to Building Depot.
Upload architectural or engineering drawings, site plans, specifications, tender documents or photos. Our Ontario engineering team reviews every submission and responds with scope, pricing and schedule.
- Architectural & engineering drawings
- Site plans and grading information
- Specifications and tender documents
- Building dimensions and photos
Tenders, RFPs and early-stage budgets all welcome
Ontario dairy buildings — answered.
Ontario dairy buildings installed Toronto · Ottawa · Sudbury · Thunder Bay
Tell us your herd size and layout.
We'll spec the building, pour the pony-wall foundation and tension the membrane — one Ontario crew, one contract.
Ontario engineers on the line · quote returned within 24 business hours
- AuthorizedMegaDome® Dealer for Ontario
- 500+Ontario projects delivered
- TurnkeyEngineering · foundation · install
- OBCP.Eng-stamped to Ontario Building Code
- 25-yrMembrane warranty · 50-yr frame life
