
Grade, cover and keep it dry.
Engineered fabric aggregate buildings for Ontario quarries, ready-mix plants and contractors — sized to tonnage, built on a pony-wall foundation and installed turnkey by one Ontario team.

Uncovered aggregate loses control, not just moisture.
Aggregate left uncovered picks up moisture, loses fines and risks cross-contamination between grades. A fabric aggregate building pairs a galvanized frame with an inert membrane and internal pony walls, so sand, gravel, crushed stone and fines are each covered, separated and ready to load without weather delays.
- →Pony-wall and slab system designed and built in-house
- →Openings and doors sized to your loader and truck fleet
- →Stamped engineering for any Ontario snow and wind zone
- →Membrane warranty terms confirmed in the issued documents
Corrosion & Abrasion Resistant
Galvanized frame and inert membrane hold up to dusty, abrasive material handling without a rusting roof deck.
Loader-Friendly Clear-Span
No interior columns. Bays, openings and turning room planned around the loader that works the pile.
Naturally Lit Interior
Daylight through the membrane lets operators see the pile and grade separations without extra lighting.
Room For Grade Separation
Internal pony walls divide sand, gravel, crushed stone and fines so each grade has its own bay and access.
Tonnage and grade separation first.
An aggregate building is sized by what it has to hold, how many grades it separates and how it gets worked — not by picking a width off a price list. These are the inputs we use before any dimension is quoted:
- →Material types and tonnage you want covered at one time
- →Angle of repose for each material — sand, gravel and stone behave differently
- →Pony-wall height, which sets how much of the footprint actually holds material
- →Loader model, bucket width and maximum lift height
- →Whether the building is divided into bays by grade
- →Room to work the face of each pile without backing into the wall
Send those numbers and we will come back with a building size, a foundation approach and a preliminary budget range. Preliminary figures are for budgeting only — final pricing follows engineering, site conditions and the configuration you select.
Get a preliminary project budget
The wall does as much work as the roof.
Everything an aggregate building has to survive happens at the base: pile pressure against the wall, loader bucket contact and moisture at the slab edge. We design the slab, the pony wall — cast-in-place or precast blocks — and the arch bearing detail as one system, then pour it and build on it with our own crews.
- →Wall height set by the volume you need contained
- →Slab and apron graded so runoff is controlled, not chased
- →Internal pony walls sized to separate grades cleanly
- →One contract from excavation through membrane tensioning

What we walk through before drawings start.
Drainage and runoff
How wash-down water and precipitation move off the apron so it doesn't pool at the wall or run toward a ditch or watercourse.
Apron and approach
Loader queuing, turning radius and truck access at the opening, planned before the door is placed.
Foundation type
Cast-in-place pony wall or precast blocks, slab thickness and the bearing detail where each arch lands.
Approvals
Permit drawings for your municipality and any pit or quarry licensing conditions that apply to material storage.
The apron, drainage and loading routine are what determine whether an aggregate building works day-to-day. We plan them with the building rather than after it.
Different yards, different grades.
Quarries and pits
Screened and processed material covered by grade, ready to load without weather delays.
Ready-mix plants
Sand and stone kept at predictable moisture for consistent batching.
Construction contractors
Bulk material staged on-site or at a yard, protected from washout and contamination.
Municipal and highway agencies
Aggregate storage alongside salt and sand operations in the same works yard.
Where to go next.
Salt Storage Buildings
Push-wall storage engineered for road salt.
ExploreSand & Treated Sand Storage
Winter sand sheds that keep stockpile moisture predictable.
ExploreMining Buildings
Process and material-handling structures for mining sites.
ExploreStorage Buildings
All fabric bulk storage applications across Ontario.
ExploreFoundations & Pony Walls
Slabs and pony walls designed and poured in-house.
ExploreTender Centre
Send an RFP, ITT or drawing set for review and pricing.
ExploreSend your project to Building Depot.
Upload architectural or engineering drawings, site plans, specifications, tender documents or photos. Our Ontario engineering team reviews every submission and responds with scope, pricing and schedule.
- Architectural & engineering drawings
- Site plans and grading information
- Specifications and tender documents
- Building dimensions and photos
Tenders, RFPs and early-stage budgets all welcome
Ontario aggregate storage — answered.
Ontario aggregate buildings installed Toronto · Ottawa · Sudbury · Thunder Bay
Tell us your tonnage and grades.
We'll spec the building, design and pour the foundation and tension the membrane — one Ontario crew, one contract.
Ontario engineers on the line · quote returned within 24 business hours
- AuthorizedMegaDome® Dealer for Ontario
- 500+Ontario projects delivered
- TurnkeyEngineering · foundation · install
- OBCP.Eng-stamped to Ontario Building Code
- 25-yrMembrane warranty · 50-yr frame life
