Engineered to protect store shelter serve

MegaDome
Canadian Fabric Buildings Manufacturer

MegaDome Coverall Buildings

MegaDome develops tension membrane storage solutions, creating spaces that offer long-lasting protection, quick installation, and optimal flexibility.

MegaDome fabric buildings are trusted across Canada for their strength, versatility, and long-term value. Designed and manufactured locally in Canada, our structures offer year-round protection for agriculture, industrial, and municipal applications. Whether you’re storing farm equipment, housing livestock, or sheltering materials, MegaDome delivers durable solutions tailored to your needs. With a lifespan of up to 25 years and a commitment to quality, our fabric buildings stand up to Canada’s toughest weather while keeping your operations running smoothly.

Designed with local canadian expertise

5,152

MegaDome Coverall Buildings installed worldwide

22,500

Linear feet of membrane per year

5,000,000

Tons of steel processed per year

Field-proven Durability

With over 60 years’ experience in manufacturing some of the world’s largest canadian mining and industrial projects and enterprises, Harnois knows what MegaDome coverall buildings are all about.

Megadome = Building trust
At its heart, MegaDome construction isn't about fabric buildings. It's about people.

At MegaDome, we go the extra mile for our clients, building relationships founded on trust, confidence, and integrity. As a proud family-owned business, we bring a individualized touch to every MegaDome coverall building project we take on. Our commitment to people-first values is reflected in the way we treat our team, our partners and our clients. It’s this approach that drives our success and keeps our clients coming back high-quality coverall building solutions.