MegaDome® The fabric building that defines the industry
Since 1999, MegaDome has been manufacturing coverall fabric buildings for industrial, agricultural, and municipal sectors throughout Quebec, Canada, and the United States.
We are Canadian manufacturer of permanent fabric buildings, specializing in turnkey storage and operational structures for demanding environments. Since 1999, we have engineered, manufactured, and installed fabric covered buildings designed to perform reliably in industrial, agricultural, and municipal applications across North America.
Our steel structures are a proven alternative to steel or wood buildings, offering faster commissioning, predictable budgets, and engineered performance tailored to your site.
The industries we support through engineered fabric structures
MegaDome fabric structure projects across North America
Our fabric buildings are installed across North America in demanding environments. These projects demonstrate the versatility, durability, and performance of MegaDome engineered fabric structures.
Start with ease, follow the steps
MegaDome provides a turnkey solution, handling every aspect of the project for you. We offer a comprehensive, turnkey approach, from planning and construction to installation and service.
Project Assessment
Analysis
Following the initial consultation, our team conducts a comprehensive site analysis. We assess wind, rain, and snow loads for the project and determine the site preparation required to ensure your permit application is approved.
Engineering and Design
Our in-house team of engineers and drafters evaluates and designs each project according to your needs. Our team ensures that every aspect of the project is meticulously planned and executed.
Manufacturing
Our oval-tube steel structures are manufactured in our facilities according to the industry’s strictest quality standards. Each component is produced with care and precision, in compliance with ISO 9001 and CSA A660 certifications, ensuring reliable, durable structures that meet the market’s highest standards. Our rigorous manufacturing process ensures consistency and excellence at every stage, from cutting to final assembly.
Installation
Our team of installation experts ensures fast and efficient construction. For clients who already have their own staff, we provide project supervisors to oversee the work.
After-Sales Service
Take advantage of our after-sales service, which offers personalized support during and after construction. Our products and services are backed by a warranty, and any issues are quickly addressed or repaired by our team of qualified technicians.
Customer satisfaction
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Discover why MegaDome is the trusted choice for engineered fabric structures
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Frequently Asked Questions
Do you have any other questions? Feel free to contact us
Email
megadome@harnois.com
Phone
+1 (888) 427-6647
MegaDome custom-built structures are available in widths ranging from 33′ to over 160′ meters, with unlimited length options. Each structure is custom-designed to fit your site and operational needs.
Yes. We offer a wide range of customizable options, including overhead doors, rolling doors, passive and active ventilation systems, and lighting packages.
Production time typically ranges from 4 to 10 weeks, depending on the size and complexity of your project. Once your order is confirmed, our team will provide you with a detailed timeline so you can plan your project with confidence.
Installation of a Megadome structure takes 2 to 8 weeks, depending on the size and site conditions. Our experienced team ensures that each step is carried out efficiently and on schedule.
Absolutely. All buildings are designed to meet or exceed local building codes, including requirements for heavy snow loads and high wind loads in all regions of Canada.
A MegaDome fabric building is engineered for decades of reliable performance. The structural steel frame is built to last indefinitely with proper maintenance, while the fabric cover typically carries a 25-year warranty and is designed to withstand harsh weather, UV exposure, and heavy snow loads. Many MegaDome structures have been in continuous operation for 30+ years.
Yes. One of the main advantages of MegaDome buildings is their modular design, which allows them to be disassembled, moved, or expanded as your needs change.
Yes. Our structures can be installed on various types of foundations, including concrete blocks, helical anchors, steel rails, or poured slabs, depending on your site conditions.
We offer turnkey solutions that include professional installation, or we can connect you with certified local installers from our network of trusted partners.