If you’ve been searching for a large clear-span building in Ontario — whether for storage, agriculture, a riding arena, an industrial facility, or a commercial operation — you’ve probably come across the term “MegaDome building.” And if you haven’t, you should. These engineered fabric dome structures are one of the fastest-growing building solutions in Canada right now, and for good reason.
At PFP Buildings, we’re an authorized dealer and builder of MegaDome structures across Southwestern Ontario — serving Dufferin, Wellington, Simcoe Counties, and beyond. This guide will walk you through everything you need to know before you invest in a MegaDome building: what it is, who it’s for, how much it costs, and why more Ontario property owners are choosing it over conventional steel or wood-frame construction.
What Is a MegaDome Building?
A MegaDome building is an engineered clear-span structure built with a galvanized steel arch frame and covered with a high-strength polyethylene or fabric membrane. Unlike traditional steel buildings, MegaDome structures require no interior columns or support posts — meaning every square foot of floor space is completely open and usable.
All MegaDome buildings sold and installed by PFP Buildings are engineered to meet the 2020 Canadian Building Code requirements. That means you’re not getting a cheap backyard tent — you’re getting a certified, permitted, permanent structure built to handle Ontario winters.
Available MegaDome Models Through PFP Buildings:
- DB Series (Round Arch): Widths from 33’ to 40’ — perfect for smaller storage, workshops, or equipment shelters.
- DB Series (Gable): Widths from 50’ to 100’ — ideal for horse arenas, commercial storage, and agricultural operations.
- S100 Series (Gable): Widths from 100’ to 160’ — the heavy-duty option for industrial operations, large-scale agriculture, and public infrastructure.
Who Should Consider a MegaDome Building in Ontario?
This is the most important question to answer before you spend a dollar. MegaDome buildings are not a one-size-fits-all solution — but they are the right solution for a surprisingly wide range of buyers. Here’s who benefits most:
- Farmers and Agricultural Operators: If you need covered storage for grain, hay, heavy equipment, or livestock, a MegaDome gives you massive clear-span space without the price tag of a conventional steel building. The 50’–80’ gable models are especially popular for crop storage and equipment shelters across Ontario farms.
- Equestrian Property Owners: A 60’ or 70’ wide MegaDome riding arena gives your horses a fully covered, column-free space year-round. No more cancelling rides because of rain, mud, or snow. The high ceiling clearances — up to 30+ feet at center — make it ideal for jumping and training.
- Industrial and Commercial Businesses: Need a warehouse, salt storage facility, waste handling area, or manufacturing shelter? The S100 Series, with widths up to 160’, is used by municipalities, logistics companies, and industrial operators across Canada for exactly this purpose.
- Sports Facility Operators: MegaDome structures are increasingly being used for indoor soccer fields, tennis courts, batting cages, and multi-sport complexes. The clear-span design and natural light from the membrane make them a practical and cost-effective alternative to conventional sports hall construction.
- Municipalities and Public Works: PFP Buildings has worked with local government clients who need durable, code-compliant storage for road salt, vehicles, or maintenance equipment. MegaDome structures offer a faster build timeline and lower cost than traditional buildings.
5 Reasons Ontario Buyers Are Choosing MegaDome Over Conventional Buildings
1. Faster Construction Timeline
Conventional pole barn or steel frame construction in Ontario can take months from permit approval to completion. MegaDome structures are engineered off-site and assembled on your property in a fraction of the time. This matters enormously if you’re dealing with a seasonal deadline — harvest, a winter without covered storage, or a business that can’t afford to wait.
2. Lower Cost Per Square Foot
When you compare the usable square footage against total project cost, MegaDome buildings consistently outperform traditional construction for large clear-span structures. You’re not paying for interior columns, complex roofing systems, or expensive cladding materials. The membrane covering is designed for long-term durability and can be replaced at a lower cost than re-roofing a conventional structure.
3. True Clear-Span Design
This is the feature that keeps buyers coming back. With no interior posts or columns, you can move equipment, vehicles, livestock, or people freely throughout the entire building. For riding arenas, warehouses, and large agricultural storage, this is not a luxury — it is a core functional requirement that conventional buildings struggle to meet at comparable cost.
4. Built for Ontario Weather
Every MegaDome structure installed by PFP Buildings is engineered to meet the 2020 Canadian Building Code. The steel arch system and high-strength membrane are designed to handle Ontario snow loads, wind conditions, and freeze-thaw cycles. The galvanized hot-dip steel components resist rust and corrosion over decades of Canadian climate exposure.
5. Flexible and Expandable
MegaDome buildings can be extended in length as your needs grow. Unlike a conventional building where expansion often requires structural redesign, many MegaDome models can be lengthened by adding additional arch sections. This modular flexibility makes it a smart long-term investment for growing operations.
How Much Does a MegaDome Building Cost in Ontario?
This is the question every serious buyer asks first — and honestly, it’s the right question to ask. The cost of a MegaDome building in Ontario depends on several factors:
- Width and height model (DB Series vs S100 Series)
- Length of the building
- Membrane specification (Standard 12oz vs Elite 13.75oz; fire-retardant options available)
- Foundation type (concrete slab, gravel, or ground anchors depending on your use case)
- Doors, end walls, and ventilation options
- Site preparation and access
Rather than publish numbers that may not reflect current material costs or your specific site requirements, we prefer to give you an accurate, detailed quote based on your actual project. Our team at PFP Buildings provides free quotes with no pressure and no obligation — and we’ll walk you through the full cost breakdown so there are no surprises.
Call us at 519-619-7648 or visit pfpbuildings.ca to request your free quote today.
What to Expect: The PFP Buildings Process
We understand that buying a large structure is a major investment. That’s why we’ve built our process around clarity, communication, and zero guesswork.
- Step 1 — Free Consultation: We start with a phone call or site visit to understand your use case, timeline, site conditions, and budget. No pressure. Just a real conversation.
- Step 2 — Custom Design & Quote: We design your MegaDome structure based on your specific requirements and provide a detailed written quote. You’ll know exactly what you’re getting before you commit.
- Step 3 — Permits & Engineering: All MegaDome buildings are engineered to meet Canadian Building Code. We handle the documentation and guide you through the permit process for your municipality.
- Step 4 — Installation: Our experienced crew handles the full installation. We work efficiently, keep the site organized, and communicate with you throughout the build.
- Step 5 — Final Walkthrough: Before we hand over the keys, we walk through the completed structure with you to ensure everything meets your expectations. Our commitment doesn’t end at installation.
Common Questions About MegaDome Buildings in Ontario
Do MegaDome buildings require a building permit in Ontario?
Yes. Like any permanent structure, MegaDome buildings require a building permit in Ontario. The good news is that these structures are fully engineered and come with the documentation needed to support your permit application. PFP Buildings will guide you through this process.
How long does a MegaDome building last?
The galvanized steel arch components are designed for a service life of decades. The membrane covering can be replaced independently of the steel structure, making the overall building a long-term investment. Regular maintenance checks ensure the building continues to perform at its best.
Can a MegaDome be insulated?
Yes. Insulation can be added to the interior of the membrane structure, making it suitable for temperature-controlled environments such as livestock barns, workshops, and storage facilities where climate management is important.
What sizes are available?
Through PFP Buildings, MegaDome structures are available in widths from 33’ to 160’, with virtually unlimited length. Whether you need a 40’ × 60’ equipment shelter or a 100’ × 200’ industrial facility, we can build it.
Is the membrane fire-retardant?
Fire-retardant (FR) membrane options are available for applications where fire code compliance is required. This is particularly relevant for commercial, industrial, and public works projects.
Serving Southwestern Ontario: Where We Build
PFP Buildings installs MegaDome structures throughout Southwestern Ontario, with a strong presence in Dufferin County, Wellington County, and Simcoe County. Our team also serves surrounding regions including Grey County, Halton Hills, Orangeville, Fergus, Elora, Barrie, and Collingwood.
If you’re not sure whether we serve your area, call us. In most cases, we do — and we’ll tell you upfront if a project isn’t a fit for our team.
Ready to Get a Free MegaDome Quote?
If you’re seriously considering a MegaDome building for your property in Ontario, the best next step is a conversation with our team. We’ll help you figure out the right size, model, and configuration for your specific needs — with a clear, honest quote and no pressure.
📞 Call: 519-619-7648
🌐 Visit: pfpbuildings.ca
PFP Buildings — Trusted builders of Pole Barns, Frame Buildings, and MegaDome Structures across Southwestern Ontario.