BUILDING DEPOT BUILDING SERIES
HP · XP · XXP · DB · AR — engineered for every span.
Every Building Depot series shares the same pre-engineered, site-specific approach. Building Depot configures the right series, profile and clearance for your Ontario project.
HP / XP / XXP SERIES
Modular Domes
Temporary or permanent modular domes — solid, adapted to punctual needs and smaller projects. Simple, fast installation. Engineered for industrial, municipal and agricultural use.
Usage
Temporary or Permanent
Profiles
HP · XP · XXP · XL
Arches
Oval tube
Install
Fast / Modular
DB SERIES
Permanent Modular Dome
Truss-arch permanent dome spanning 33 ft to 160 ft clear, with wide interior clearance and five profile options. Hot-dip galvanized steel, oval tubes for optimized resistance, and length extendable as your operation grows.
Clear span
33' – 160'
Profiles
5 (XL · XP · HP · XXP)
Arches
Truss / Oval tube
Use
Temp. or Permanent
AR SERIES
Custom Engineered Dome
Custom-engineered permanent structure designed per project — up to 200 ft wide with vertical walls for maximum clearance. Truss arches are always hot-dip galvanized. Roof membrane can be replaced per section and the building can be extended as your business grows.
Width
60' – 200'
Height A
14' – 50'
Height B
30' – 90'
Walls
Vertical

LARGE CLEAR-SPAN BUILDINGS
Column-free volume. Real working clearance.
When your operation needs unobstructed interior space — for stockpiles at full angle of repose, for the swing of a front-end loader, or for stacking trucks bumper-to-bumper — Building Depot engineers a large-span Building Depot engineered fabric building that gives you the full footprint with zero interior columns. Permanent, hot-dip galvanized, and sized to your equipment.
- Clear spans up to 200 ft, no interior columns
- Vertical side walls for maximum usable cubic feet
- Engineered to Ontario snow, wind & seismic loads
- Concrete push-wall integration up to 16 ft
- Extendable in length as your operation grows
- Translucent membrane — daylight in, energy bill down
DB SERIES — CLEARANCE
Interior clearance by span width.
Reference clearance heights (A, B, C) for the DB permanent modular dome across 33 ft to 160 ft clear spans.
| Width | Clearance A | Clearance B | Clearance C |
|---|
| 33' | 13'11" | 16'4" | 21'9" |
| 40' | 6'0" or 13'11" | 6'6" or 16'4" | 14'11" or 21'9" |
| 50' | 3'8" – 12'7" | 6'6" – 15'3" | 15'9" – 25'9" |
| 60' | 6'1" – 17'1" | 9'3" – 22'4" | 20'9" – 32'9" |
| 70' | 6'1" – 17'1" | 9'10" – 20'3" | 23'5" – 34'5" |
| 80' | 6'1" – 17'1" | 6'1" – 20'3" | 25'0" – 37'8" |
| 90' | 6'1" – 17'1" | 9'3" – 20'3" | 26'8" – 37'8" |
| 100' | 11'9" or 13'9" | 14'8" or 17'6" | 36'0" or 46'11" |
| 125' | 13'9" | 17'6" | 50'0" |
| 130' | 17'1" | 20'3" | 50'1" |
| 140' | 13'9" | 17'6" | 51'8" |
| 160' | 13'8" | 17'5" | 53'1" |
Profiles available on the DB series: XL · XP · HP · XXP. Exact clearance depends on chosen profile and foundation.
SERIES COMPARISON
EZ · DB · AR at a glance.
| | EZ (HP/XP/XXP) | DB | AR |
|---|
| Usage | Temp. / Perm. | Temp. / Perm. | Permanent |
| Span | 30', 35', 40' | 33' – 160' | 60', 80', 120'+ (to 200') |
| Profiles | 3 | 5 | 3 |
| Arches | Single / Oval tubes | Truss / Oval tubes | Truss / Rectangular |
| Customization | Low | High | High |
| Relative Cost | $ | $$ | $$ – $$$ |
BUILDING OPTIONS
Engineered openings for the way you actually work.
Every Building Depot dome is configured around how product, equipment and people move through the building. Two of the most common options we engineer in Ontario:

OPTION · 01
Side Door
A full-height sliding or bi-parting side door cut into the sidewall — engineered to fit loaders, tandem trucks and end-dumps without losing the gable-end stockpile depth. Framed in hot-dip galvanized steel, insulated cladding optional, and integrated into the structural arch so the dome rating is preserved.
- Drive-through access without sacrificing stockpile length
- Hot-dip galvanized frame engineered into the arch
- Sized to your loader, truck or end-dump
- Manual or motorized — sliding or bi-parting

OPTION · 02
Conveyor Opening
Most aggregate, salt, sand and bulk-material buildings are filled by a stacker or radial conveyor. We engineer a dedicated conveyor opening — gable-end or sidewall — sized to your belt geometry, drop height and stockpile angle of repose, so you fill the dome to its full clear-span volume.
- Sized to your stacker / radial conveyor
- Engineered for full stockpile angle of repose
- Weather-sealed boot to protect the membrane
- Combined with overhead or side door for truck-out
Other options — overhead doors, man-doors, ridge & gable ventilation, insulated liners, lighting packages — are quoted per project. Tell us how the building has to operate and Building Depot engineers the openings around it.
Serving fabric building projects across Ontario
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Turnkey
Engineering · foundation · install
OBC
Engineer-stamped to Ontario Building Code
25-yr
Membrane warranty · 50-yr frame life