Building Types
80x150 Hay Barn
- Width
- 80 ft
- Length
- 150 ft
- Floor area
- 12,000 sq ft
- Perimeter
- 460 ft
Use
How a 80×150 Hay Barn May Be Used
Equipment shelter
Machinery clearance height and door width are usually the limiting factors, not floor area.
Commodity and forage
Bulk storage depth against the sidewalls affects how the building is loaded and unloaded.
Drive-through access
End-to-end access lets equipment pass through without reversing.
Seasonal working space
Open floor is commonly kept for repairs and staging between seasons.
Example
Example Configuration
Quick dimensions
At a Glance
Width
80 ft across the gable end.
Length
150 ft along the sidewall.
Floor area
12,000 sq ft of clear floor.
Eave height
24 ft at the sidewall on the stored profile.
Configuration
How This Building Is Configured
Configuration summary
| Building type | Hay Barn |
|---|---|
| Footprint | 80 ft × 150 ft |
| Floor area | 12,000 sq ft |
| Eave height | 24 ft |
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.
Access
Doors & Access Considerations
Opening width
Across a 80 ft gable end, the practical opening width is limited by the frame and confirmed with the supplier.
Opening height
A 24 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.
Similar sizes
Other Sizes for a Hay Barn
80′ × 130′
10,400 sq ft
80′ × 170′
13,600 sq ft
70′ × 150′
10,500 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
80 ft × 150 ft is 12,000 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 80x150 hay barn planned as a drive-through store worked from both ends without reversing
This page is ordered around the working arrangement, because the 150-foot depth at 80x150 is what gives a hay barn its usable sequence of zones.
5 handling lanes fit across the 80-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.
What distinguishes 80x150 is depth behaviour: 6 rows along 150 feet after 14 feet of circulation, with 4 feet unaccounted for at the end of the run. Judge the plan by what has to happen on the worst day of the year, not on an average one.
A 80 by 150 footprint is a clearly directional plan: 12,000 sq ft enclosed by 460 ft of wall, at a 1.9:1 length-to-width proportion. Along its 150 ft dimension it takes 6 runs of handling lanes at 22 ft, leaving 18 ft over — the 18 ft is where the argument about this size actually happens. Taken purely as arithmetic, 80 by 150 gives 4 handling lanes across the 80 ft dimension once 14 ft is reserved for movement, and 6 deep along the 150 ft dimension. Run as a a drive-through store worked from both ends without reversing, 2 ft across is below the 10 ft this use needs to be worth planning, so there is no passing point, so the lane is single-direction in practice and two machines cannot work it at once Material stored for a customer rather than for the operation needs physical separation, not just a marked line.
At 80x150 the operating question is a specific one: does the operation move enough material for a through-lane to be worth the stack space it consumes? That is a different question from the one a hay barn of another shape has to answer, and it is why this footprint is planned as a drive-through store worked from both ends without reversing rather than as generic covered area.
Areas, perimeter, roof area, ridge height, slab volume and the handling lane counts on this page are computed from the stored 80x150 record and this platform's planning module for the hay barn category.
Configurations
Configuring 30 handling lanes at 80x150
At 25-foot nominal bays the structure works with the layout instead of against it: one handling lane per bay line, walls free of awkward half-positions. Two feet of spare width reads as nothing on a plan and as a great deal when a machine is being turned.
With 6 rows deep, the rear row is behind the front one. Without a route past it, those handling lanes become storage positions rather than working ones — the real cost of depth at this width. The plan is only as good as the route into it, which is a site question rather than a building one.
Through stores extend sideways, adding flanking stack without touching the lane. Lengthening the lane rarely improves anything except capacity behind the same face.
Configured as a drive-through store worked from both ends without reversing, 80x150 is judged on whether the 30 handling lanes 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 racking or work zones on both sides with a full vehicle lane down the middle, or does it need a second lane that this 80-foot span cannot give?
- Is the 150-foot length being bought for depth, or for the repeated bays — a long repeating bay sequence, so segment boundaries are set by bay lines rather than by walls?
- What stack height do you plan, and can the loader place a bale above it inside the building?
- Which sides stay open for airflow, and which face the weather?
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.
Usable area
How the 12,000 square feet divides at 80x150
Computed handling lane fit for a 80x150 hay barn
| Measure | Computed at this footprint |
|---|---|
| Handling lanes across the 80-foot width | 5 at a 16-foot module |
| Leftover width | 0 ft (0 sq ft as a full-length strip) |
| Rows along the 150-foot length | 6 at a 22-foot module after 14 ft of circulation |
| Leftover depth | 4 ft (320 sq ft across the width) |
| Total handling lanes | 30 |
| Share of floor committed | 88% |
Module footprint used here is 16 by 22 feet, this platform's planning module for a hay barn. It is not a code minimum or an engineered clearance.
Example allocation of the 150-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Equipment bays | 90 ft | 7,200 sq ft |
| Material and input storage | 37.5 ft | 3,000 sq ft |
| Working and turning space | 22.5 ft | 1,800 sq ft |
Shares applied to the stored 150-foot length; areas computed against the 80-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.
Allocation
Dividing the floor for a drive-through store worked from both ends without reversing
The storage arrangement this floor tends toward in a heavy season is a compact bale store loaded and emptied by hand or with a small loader: there is no inside working space, so bales are handled on the ground outside the doors whatever the weather is doing. Dividing the 12,000 sq ft by the 16 by 22 ft handling lane gives roughly 24 positions before circulation is deducted a second time for cross movement. Whether the plan keeps 24 or drops to 18 comes back to the question this footprint is really answering: does the operation move enough material for a through-lane to be worth the stack space it consumes?
There is no end zone at this footprint. 4 feet is circulation slack, not floor area with a purpose, and there is no passing point, so the lane is single-direction in practice and two machines cannot work it at once. Rows that cannot be entered independently end up used as one long space.
Width is fully committed at 80x150. With 0 feet spare, wall storage and passing room compete with the handling lanes directly. Circulation width is the first thing surrendered under pressure and the first thing missed afterwards.
Traffic is one-way, which removes the reversing that dominates every other arrangement. That single change is usually what justifies the lane in operations handling trailers rather than loader buckets. Forage goes in with moisture in it and changes condition after it is stacked, which is why air movement is planned rather than left to the doors. That movement pattern, not the 12,000-square-foot total, is what decides whether the leftover 4 feet is useful here.
Height
Interior height for a 80x150 hay barn
Span drives headroom at 80x150: 80 feet of width on a 4:12 pitch puts 37.3 feet over the middle and 24 feet at the walls, so where a tall item stands matters as much as how tall it is. Whoever operates the building daily should read the plan before it is frozen, because they know where the pinch points are.
Height on a 80 ft span is a separate decision from the 150 ft length, and it is the span that sets the frame's behavior. Raising the eave over 12,000 sq ft affects every bay along the 150 ft dimension, so the test is whether drive-through forage handling genuinely needs the extra clear height or only the floor area.
Ventilation across 12,000 square feet at this height: airflow through a stack is the reason many hay barns stay open-sided; enclosing them changes how the stored crop behaves.
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 5 handling lanes across
Openings are the pinch point here. With 0 feet of spare width the gable cannot host 5 separate doors, so access is either shared or moved to the 150-foot sidewall. Daylight placement changes how a floor is used far more than its cost suggests.
Two aligned openings define the building, and their clear width sets the largest vehicle that can use the lane. A lane wide enough to drive but too narrow to turn is the recurring planning error here.
Loader-handled from the open side, with the working face moving as the stack grows and shrinks.
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.
Cost drivers
Quantities that move the estimate at 80x150
The estimate at 80x150 moves with four computed quantities: 12,000 square feet of floor, 460 feet of perimeter, 11,040 square feet of wall and 12,649 square feet of roof. Everything else is site and specification. Security and after-hours access are easier to design in the door layout than to bolt on later.
Two large openings, a durable lane surface and the frame around both ends carry the extra cost. The stack area lost to the lane is the larger hidden cost and should be counted in the comparison.
- eave height set by handling clearance above the stack
- how many sides remain open
- the apron the loader and trailers use
- roof drainage over an open working face
Comparison
What changes at adjacent footprints
Computed comparison of nearby footprints for a hay barn
| Footprint | Floor area | Handling lanes |
|---|---|---|
| 60x80 | 4,800 sq ft | 8 (4 x 2) |
| 40x120 | 4,800 sq ft | 8 (2 x 4) |
| 50x100 | 5,000 sq ft | 9 (3 x 3) |
| 60x100 | 6,000 sq ft | 9 (3 x 3) |
| 50x120 | 6,000 sq ft | 15 (3 x 5) |
Areas computed from each stored size record; handling lane counts computed with the same 16 by 22 foot planning module.
- 60x80 moves the count from 30 to 8 handling lanes (4 across by 2 deep), which is the reason to choose between them.
- 40x120 moves the count from 30 to 8 handling lanes (2 across by 4 deep), which is the reason to choose between them.
- 50x100 moves the count from 30 to 9 handling lanes (3 across by 3 deep), which is the reason to choose between them.
Nearby footprints read for a hay barn: exact change in area and in planning handling lanes
| Footprint | Area Δ | % Δ | Handling lanes at that footprint | What changes for this use |
|---|---|---|---|---|
| 100x100 | −2,000 sq ft | −16.7% | 15 (5 x 3) | −15 handling lanes on the same planning module. |
| 80x120 | −2,400 sq ft | −20% | 16 (4 x 4) | −14 handling lanes on the same planning module. |
| 100x150 | +3,000 sq ft | +25% | 25 (5 x 5) | −5 handling lanes on the same planning module. |
| 60x150 | −3,000 sq ft | −25% | 15 (3 x 5) | −15 handling lanes on the same planning module. |
Areas are arithmetic on two stored size records; handling lane counts use this platform's 16 by 22 foot planning module and are not a capacity statement.
Because this footprint is planned as a drive-through store worked from both ends without reversing, the useful next reads are different from the ones a differently shaped hay barn suggests: drive-through forage handling, lane width planning, two-ended access.
Visualization
Reading the 80x150 footprint as a hay barn
FAQ
Questions about 80x150 hay barn projects
The width leaves 0 feet spare after 5 handling lanes. 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 14 ft across the 80 ft dimension for movement leaves 66 ft of working width, which takes 4 handling lanes at 16 ft. Along 150 ft it takes 6 runs at 22 ft. That is 24 positions out of 12,000 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on does the operation move enough material for a through-lane to be worth the stack space it consumes. These are planning figures computed from the footprint, not a quoted layout.
Length here buys 6 rows and 6 nominal bays; width buys 5 positions side by side. At this aspect ratio the building is already long for its span, so extra length adds depth rather than capacity.
Only where movement is frequent. A store filled once and emptied slowly gains little from a lane and loses real capacity to it.
Length grows in bays; height is set by handling equipment and is the harder constraint to change Practically, the 150-foot dimension is the one that extends; the 80-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.
- Handling lane fit: Counts, leftover strips and per-module areas are computed from the stored 80x150 record against this platform's 16 by 22 foot planning module for the hay barn category, with 14 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 agricultural equipment and crop shelter and are applied arithmetically to the stored 150-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.
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 80x150 hay barn configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.