Company Introduction
Who we are and how we build across Ontario.

Building Depot is Ontario's Authorized MegaDome Dealer — delivering complete turnkey engineered fabric building solutions from foundation construction to final installation and membrane replacement.


Dairy, calf, poultry, hay, grain and machinery storage.
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Trucks, trailers, fleet and seasonal equipment cover.
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Municipal salt sheds and de-icing material domes.
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Public works yards, waste transfer and sand storage.
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Equipment shelters, ore covers and process buildings.
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Warehousing, distribution, sports and retail facilities.
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Manufacturing, processing and heavy-industry sites.
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Engineered hangars with clear-span access for aircraft.
ExploreBuilding Depot designs, supplies and installs engineered fabric-span buildings across Ontario. Every structure is stamped for site-specific snow, wind and seismic loads — and assembled by our own crews.

Direct factory relationship with Harnois — genuine MegaDome engineering, parts and warranty support.
One contract from engineering through commissioning — foundation, steel, membrane and accessories.
Our own crews assemble every MegaDome — no subcontractor handoffs, no scheduling gaps.
Stamped to your site's snow, wind and seismic loads under the Ontario Building Code.
Crews mobilize province-wide, from Niagara to Thunder Bay. Travel included in the quote.
Full lifecycle support — re-tensions, panel swaps and full re-skins on any fabric brand.
Single point of contact from first drawing to final tensioning. Honest, fixed Ontario quotes in 24 hours.
Watch real Building Depot crews installing engineered engineered fabric buildings across Ontario.
Who we are and how we build across Ontario.
Foundation to weather-tight in a few weeks.
Completed fabric building installs across the province.
AgricultureTranslucent membrane gives the herd consistent natural light; ridge vent and gable louvers keep ammonia and humidity in check year-round.
Salt StorageConcrete L-block foundation engineered for full salt stockpile. Wide-open clear-span lets the loader work without column collisions.
MiningHot-dip galvanized frame and AR-series membrane built for high-abrasion environments and heavy haul-truck access.
CommercialClear-span warehouse with dual side-wall personnel doors and end-wall overhead bay for full trailer access.
Equipment StorageYear-round cover for trucks, trailers and seasonal equipment. Pier foundation poured in two weeks.
AviationOpen-span hangar with engineered hangar door — natural light keeps maintenance work fast and pleasant.

Download our buyer's guide, spec sheets and Ontario site-prep checklist — no sales call required.
32-page PDF covering sizing, snow loads, accessories and Ontario pricing.
DownloadEverything your site needs before our crew arrives — grading, power, access.
DownloadStamped engineering samples, foundation details and accessory cut-sheets.
DownloadServing fabric building projects across Ontario
Tell us your site, size and end use. Our Ontario engineering team will scope, price and schedule your fabric building.
Ontario engineers on the line · quote returned within 24 business hours