Building Types
36x40 Metal Garage
- Width
- 36 ft
- Length
- 40 ft
- Floor area
- 1,440 sq ft
- Perimeter
- 152 ft
Configuration
How This Building Is Configured
A steel garage building sized around vehicle bays, door openings and clear interior height.
Configuration summary
| Building type | Metal Garage |
|---|---|
| Footprint | 36 ft × 40 ft |
| Floor area | 1,440 sq ft |
| Eave height | 14 ft |
Example
Example Configuration
Quick dimensions
At a Glance
Width
36 ft across the gable end.
Length
40 ft along the sidewall.
Floor area
1,440 sq ft of clear floor.
Eave height
14 ft at the sidewall on the stored profile.
Access
Doors & Access Considerations
Opening width
Across a 36 ft gable end, the practical opening width is limited by the frame and confirmed with the supplier.
Opening height
A 14 ft eave sets the ceiling on door height before any frame change.
Drive-through
Matching openings at both ends avoid reversing, at the cost of usable wall.
Use
How a 36×40 Metal Garage May Be Used
Vehicle storage
Bay width and door placement determine how many vehicles park comfortably and how they circulate.
Home workshop
A wall of bench space is commonly kept clear of door swings and vehicle doors.
Equipment parking
Shelving depth along a side wall reduces the usable parking width, so it is planned early.
Planning
Footprint & Space Planning
Footprint
Width and length are chosen together: width is usually fixed by what has to fit side by side, length by how many bays are needed.
Height
Eave height affects door options, storage height and how open the interior feels.
Access
Where vehicles and people enter changes the whole interior layout, so access is settled before anything else.
Doors and openings
Opening width, height and position are specified with the supplier; they affect the frame and the wall bracing.
Site
Slope, drainage, access for delivery and erection, and the foundation are confirmed for the actual property.
Expansion
Extending along the length is usually simpler than changing the width later, which is worth deciding up front.
Similar sizes
Other Sizes for a Metal Garage
36′ × 20′
720 sq ft
36′ × 60′
2,160 sq ft
26′ × 40′
1,040 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
36 ft × 40 ft is 1,440 square feet of floor area before any interior partitions.
Length is usually adjusted in bay increments, and width is a larger design change. Both are confirmed with the supplier for the final design.
Site preparation, foundation and erection are commonly quoted separately from the building package. Confirm the scope of any quote you receive.
Compare nearby sizes
Related footprints for this building type
Each page works through one footprint for one building type.
Overview
A 36x40 metal garage planned as two or more vehicles parked side by side with doors that open
This page is ordered around depth, because a long narrow building parks in sequence and the decision is which vehicle lives at the far end.
3 parking bays fit across the 36-foot width with only 0 feet left over, which is a tight fit: the width is fully committed and nothing can be widened later without moving a wall.
Efficiency is the useful number here: 480 square feet of enclosed floor per parking bay, against a 264-square-foot module. That is generous — the footprint is doing more than hold modules. Daylight placement changes how a floor is used far more than its cost suggests.
A 36 by 40 footprint is a near-square plan: 1,440 sq ft enclosed by 152 ft of wall, at a 1.1:1 length-to-width proportion. Along its 40 ft dimension it takes 1 run of parking bays at 22 ft, leaving 18 ft over — the 18 ft is where the argument about this size actually happens. Side-by-side parking is a width arithmetic problem, and the number that matters is not vehicle width but vehicle width plus opened doors plus a route between them. A building sized on body width holds the vehicles and frustrates everybody who uses them. Insulation and heating decisions follow how the building is used in winter, not its size.
This footprint is planned as two or more vehicles parked side by side with doors that open. At 1.11:1 the plan is close enough to square that neither width nor depth is doing the arguing; what decides the layout here is where the openings go, because no proportion is forcing a direction on the floor. Spent as a square 38 by 38 instead, the same 1,440 sq ft would stand 2 parking bays across rather than 2, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. Both vehicles come and go independently, which is the whole reason for side-by-side rather than tandem. Any plan that requires moving one to use the other has given the arrangement away. Where a garage is attached or close to a dwelling, separation provisions are determined by the adopted code for that jurisdiction.
Areas, perimeter, roof area, ridge height, slab volume and the parking bay counts on this page are computed from the stored 36x40 record and this platform's planning module for the metal garage category.
Usable area
How the 1,440 square feet divides at 36x40
Computed parking bay fit for a 36x40 metal garage
| Measure | Computed at this footprint |
|---|---|
| Parking bays across the 36-foot width | 3 at a 12-foot module |
| Leftover width | 0 ft (0 sq ft as a full-length strip) |
| Rows along the 40-foot length | 1 at a 22-foot module after 4 ft of circulation |
| Leftover depth | 14 ft (504 sq ft across the width) |
| Total parking bays | 3 |
| Share of floor committed | 55% |
Module footprint used here is 12 by 22 feet, this platform's planning module for a metal garage. It is not a code minimum or an engineered clearance.
Example allocation of the 40-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Parking bays | 28.8 ft | 1,037 sq ft |
| Walk-around and door swing | 7.2 ft | 259 sq ft |
| Tools and seasonal storage | 4 ft | 144 sq ft |
Shares applied to the stored 40-foot length; areas computed against the 36-foot width.
Module footprints and allocation shares come from this platform's use typology and are published as example planning models. They are not recommendations and do not describe a majority of projects.
Configurations
Configuring 3 parking bays at 36x40
Nominal bay division computes to 2 bays at about 20 feet, wider than the 12-foot module — so a position can sit inside a bay without a frame line splitting it. Doors and their approaches decide more about daily use here than the enclosed area does.
A single row means nothing is trapped: every position faces the opening directly, which is this footprint's advantage over a deeper building of the same width. The building is fixed for decades while the operation inside it changes every few years, and the plan has to survive that.
Extension is cheapest along the 40 ft dimension, where each added bay repeats work already framed; widening past 36 ft is a different frame rather than a longer one. Growing to 36 by 62 adds a 2th run of parking bays — useful if the constraint is parking bays rather than the 18 ft already spare at the far end.
Configured as two or more vehicles parked side by side with doors that open, 36x40 is judged on whether the 3 parking bays it holds match the operation, and on whether the 0 feet of spare width leaves the route this mode depends on.
- Does the work need two parked lanes with a walking gap between them, or one lane and a deep work zone, or does it need a second lane that this 36-foot span cannot give?
- Is the 40-foot length being bought for depth, or for the repeated bays — three or four repeated frame bays, which sets a clear grain for partitions and rack lines?
- How many vehicle openings, and on which wall?
- What is the tallest vehicle that has to fit, measured with racks or a raised tailgate?
Bay division shown here is a planning module computed from the stored length. Actual bay spacing is set by the manufacturer's frame design for the building.
Allocation
Dividing the floor for two or more vehicles parked side by side with doors that open
The use this shell could equally be given beyond parking is vehicles parked one behind another in a deep narrow building: there is no bay at the back, so the deep end holds a vehicle that is only reached by moving the one in front of it. Dividing the 1,440 sq ft by the 12 by 22 ft parking bay gives roughly 2 positions before circulation is deducted a second time for cross movement. Whether the plan keeps 2 or drops to 1 comes back to the question this footprint is really answering: does the width hold this many vehicles with their doors open at the same time, not merely their bodies?
Because 14 feet clears the 6 feet this platform treats as usable, the end of the run is a room rather than a gap: 504 square feet for a walk-through gap between and beyond the vehicles, so passengers reach the door without edging along paintwork. Security and after-hours access are easier to design in the door layout than to bolt on later.
Only 0 feet of width is spare, so there is no wall strip: anything set along a sidewall comes out of a parking bay's clearance. The span is the commitment; everything inside it is rearrangeable later, and the 36-foot dimension is not.
At 1.11:1 the plan is close enough to square that neither width nor depth is doing the arguing; what decides the layout here is where the openings go, because no proportion is forcing a direction on the floor. Spent as a square 38 by 38 instead, the same 1,440 sq ft would stand 2 parking bays across rather than 2, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. Both vehicles come and go independently, which is the whole reason for side-by-side rather than tandem. Any plan that requires moving one to use the other has given the arrangement away. Where a garage is attached or close to a dwelling, separation provisions are determined by the adopted code for that jurisdiction. That movement pattern, not the 1,440-square-foot total, is what decides whether the leftover 14 feet is useful here.
Height
Interior height for a 36x40 metal garage
The stored configuration carries a 14-foot eave and computes to 18.5 feet at the ridge on a 3:12 pitch — a 4.5-foot rise across 36 feet. Height is therefore not uniform, and the sidewall is the constraint. The floor treatment is a use decision that outlasts most of the equipment standing on it.
Height on a 36 ft span is a separate decision from the 40 ft length, and it is the span that sets the frame's behavior. Raising the eave over 1,440 sq ft affects every bay along the 40 ft dimension, so the test is whether side by side parking width genuinely needs the extra clear height or only the floor area.
Insulation is a later decision for most buyers here, which is why it is worth knowing what it depends on before ordering.
Clear height below purlins, bracing and lighting is lower than the eave height. The usable figure comes from the manufacturer's framing for the selected building.
Openings
Openings for 3 parking bays across
Openings are the pinch point here. With 0 feet of spare width the gable cannot host 3 separate doors, so access is either shared or moved to the 40-foot sidewall. Two operations of the same size can want opposite plans, so the arithmetic below is a starting point rather than a recommendation.
Either two separate vehicle doors or one wide one, and the choice affects the frame, the weather seal and the wall between. Both arrangements work; mixing the two badly does not.
Framed-opening sizes, headers and the structure around them are engineered for the specific building. Confirm every opening with the door supplier and the building manufacturer before ordering.
Comparison
What changes at adjacent footprints
Computed comparison of nearby footprints for a metal garage
| Footprint | Floor area | Parking bays |
|---|---|---|
| 12x20 | 240 sq ft | 0 (1 x 0) |
| 12x24 | 288 sq ft | 1 (1 x 1) |
| 16x20 | 320 sq ft | 0 (1 x 0) |
| 12x30 | 360 sq ft | 1 (1 x 1) |
| 16x24 | 384 sq ft | 1 (1 x 1) |
Areas computed from each stored size record; parking bay counts computed with the same 12 by 22 foot planning module.
- 12x20 moves the count from 3 to 0 parking bays (1 across by 0 deep), which is the reason to choose between them.
- 12x24 moves the count from 3 to 1 parking bays (1 across by 1 deep), which is the reason to choose between them.
- 16x20 moves the count from 3 to 0 parking bays (1 across by 0 deep), which is the reason to choose between them.
Nearby footprints read for a metal garage: exact change in area and in planning parking bays
| Footprint | Area Δ | % Δ | Parking bays at that footprint | What changes for this use |
|---|---|---|---|---|
| 30x50 | +60 sq ft | +4.2% | 2 (2 x 1) | −1 parking bay on the same planning module. |
| 40x40 | +160 sq ft | +11.1% | 3 (3 x 1) | Same parking bay count on this planning module; the difference is circulation and stored depth, not capacity. |
| 32x40 | −160 sq ft | −11.1% | 2 (2 x 1) | −1 parking bay on the same planning module. |
| 36x48 | +288 sq ft | +20% | 3 (3 x 1) | Same parking bay count on this planning module; the difference is circulation and stored depth, not capacity. |
Areas are arithmetic on two stored size records; parking bay counts use this platform's 12 by 22 foot planning module and are not a capacity statement.
Because this footprint is planned as two or more vehicles parked side by side with doors that open, the useful next reads are different from the ones a differently shaped metal garage suggests: side by side parking width, door swing clearance, two vehicle garage.
Visualization
Reading the 36x40 footprint as a metal garage
FAQ
Questions about 36x40 metal garage projects
The width leaves 0 feet spare after 3 parking bays. There is no margin, so added equipment or wall storage comes out of a position. Width is the dimension that cannot be extended later.
Reserving 4 ft across the 36 ft dimension for movement leaves 32 ft of working width, which takes 2 parking bays at 12 ft. Along 40 ft it takes 1 runs at 22 ft. That is 2 positions out of 1,440 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on does the width hold this many vehicles with their doors open at the same time, not merely their bodies. These are planning figures computed from the footprint, not a quoted layout.
Length here buys 1 row and 2 nominal bays; width buys 3 positions side by side. At this aspect ratio both dimensions are still adding usable positions.
Two doors keep the vehicles independent and the wall between them useful; one wide door is more flexible for oversized loads. The choice is structural and is best made before the frame is ordered.
The honest growth path is length, and the honest question is whether a workshop or storage use is coming that changes the specification Practically, the 40-foot dimension is the one that extends; the 36-foot span is fixed once the frames are set.
Methodology
How this page was produced
Sources and methodology
Find Steel Buildings dimensional records
Find Steel Buildings · Primary platform dataset · Tier 1 — code authority, standards body, primary dataset or manufacturer engineering
Supports: Stored nominal width, length, eave height, roof pitch and slab thickness for this subject.
International Building Code and International Residential Code
International Code Council · Model code · Tier 1 — code authority, standards body, primary dataset or manufacturer engineering
Supports: The framework of adopted codes and local amendments that decides permitting, separation and opening requirements. Cited as the governing framework, never as a local requirement.
- Dimensional figures: Width, length, eave height, roof pitch and nominal slab thickness come from this platform's stored record for the subject. Floor area, perimeter, wall area, roof area, ridge height and slab volume are computed from those inputs rather than transcribed.
- Parking bay fit: Counts, leftover strips and per-module areas are computed from the stored 36x40 record against this platform's 12 by 22 foot planning module for the metal garage category, with 4 feet allowed for circulation. The module is editorial planning typology, not a code minimum or an engineered clearance.
- Allocation model: Zone shares come from this platform's use typology for vehicle shelter and parking and are applied arithmetically to the stored 40-foot length.
- Allocation and layout models: Layout splits are arithmetic on the stored footprint, published as example allocation models. They are not survey findings and do not describe what buyers most often choose.
- Clearance and opening guidance: Clearance and opening statements are planning guidance. Final dimensions depend on the selected door system, header detail and the manufacturer's engineering for the building.
Methodology notes
- Prices: No price figure appears on this page. Cost data is published on this platform only with a documented inclusion basis, a collection date and a named source.
Cost drivers
Quantities that move the estimate at 36x40
No price appears on this page. The quantities that scale an estimate at 36x40 are 1,440 square feet of slab, 17.8 cubic yards of nominal concrete, 2,128 square feet of wall cladding and 1,484 square feet of roof cladding. An empty building looks generous and a working one rarely does; plan against the working state.
Door width dominates the estimate. Two doors and one wide door differ in cost, in structure and in how the building can later be divided.
- the number and size of vehicle openings
- eave height driven by the tallest vehicle
- whether insulation and lining are included now
- the apron and site work at the door line
Drawn to scale
Plans and dimensions
Every drawing below is generated from the exact dimensions for this building, so proportions and areas are accurate.
Continue your research
Related planning topics
Background reading on the questions this page raises. None of these pages sells anything.
Compare 36x40 metal garage configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.