MegaDome fabric building aerial view
MegaDome® by Harnois — Authorized Ontario Dealer

MegaDome®
Buildings

CoverIT Canada is Ontario's authorized MegaDome® dealer. Canadian-engineered, Quebec-manufactured structures built for extreme snow loads and harsh Canadian winters. We handle everything from quote to installation.

MegaDome® by Harnois™
Authorized Ontario Dealer

CoverIT Canada is Ontario's
Official MegaDome® Dealer

As an authorized dealer, we supply, deliver, and install the full MegaDome® product lineup across Ontario — with local expertise and sealed engineering on every project.

01
Oval steel tube frame
Engineered with oval structural steel tubing to withstand extreme Canadian snow loads and high winds.
02
Sealed engineering on every project
Stamped engineering plans included for every MegaDome project, adapted to your site location and local building code.
03
Clear-span — no interior columns
Maximum usable space with no obstructions. Ideal for large equipment, livestock, bulk storage, and municipal facilities.
04
50+ years of manufacturing
Industries Harnois™ has been engineering fabric structures in Canada since the 1960s.
05
Customizable to your site
Custom widths, lengths, snow deflectors, connections to existing buildings, door and ventilation options.
50+
Years manufactured in Canada
160'
Maximum clear-span — S100 Series
3
Product series for any application
Ontario building code compliant
Product Lines
MegaDome®
Series
MegaDome® Series
DB Series

The most versatile series. Ideal for agricultural, municipal, and industrial applications of all sizes.

33 to 100 feet wide
MegaDome® Series
S100 Series

Widest clear-span series. Built for large municipal, industrial warehouses, and mining operations.

100 to 160 feet wide
MegaDome® Series
AR Series

High-performance series for complex, demanding project requirements and specialized applications.

60 to 100 feet wide
Our Projects
MegaDome® Buildings
Installed by CoverIT
MegaDome fabric building aerial view
Aerial View
Completed MegaDome white dome front view
Completed Build
MegaDome green building with wind turbines
Agricultural Storage
Large MegaDome structure side view
Large-Span Structure
MegaDome steel frames at dusk construction site
Frame Construction
Finished MegaDome building summer
Finished Installation
Applications
What MegaDome Buildings
Are Used For
🌾
Agricultural

Dairy barns, livestock shelters, hay and grain storage, machinery sheds. Natural light and ventilation for animal comfort.

🏛
Municipal

Road salt and sand domes, public works equipment shelters, maintenance yards. Trusted by Ontario municipalities.

Mining

Equipment and vehicle storage, bulk material storage, maintenance shops. Built for remote Ontario mine sites.

🏗
Industrial

Bulk material storage, composting, recycling, heavy equipment warehouses, and production space.

🏟
Recreational

Skating rinks, arenas, equestrian facilities, event spaces, and recreational structures for communities.

Ports & Waterways

Marine storage, boat and equipment shelters, aggregate and bulk material storage at port facilities.

Get Pricing
Request Pricing for
Your MegaDome®

Tell us about your project and we'll come back with a detailed, no-obligation quote. Takes less than two minutes.

01
Fill out the form
Postal code, application, profile, sizing, foundation, and door requirements.
02
We review & follow up
We review your project details and follow up within one business day by phone or email.
03
Receive your detailed quote
A complete, no-obligation quote with building specs, foundation recommendations, and pricing.
MegaDome® Pricing Request

All fields help us give you an accurate quote.

No obligation. We respond within one business day.

Interested in a
MegaDome Building?

As Ontario's authorized dealer, we find the right series and size for your site and provide a detailed quote. Not sure which series fits? Just call us.

Call 1-844-242-6837 Or email info@coveritcanada.com