Building Types
80x120 Clear-Span Steel Building
- Width
- 80 ft
- Length
- 120 ft
- Floor area
- 9,600 sq ft
- Perimeter
- 400 ft
Quick dimensions
At a Glance
Width
80 ft across the gable end.
Length
120 ft along the sidewall.
Floor area
9,600 sq ft of clear floor.
Eave height
22 ft at the sidewall on the stored profile.
Configuration
How This Building Is Configured
Configuration summary
| Building type | Clear-Span Steel Building |
|---|---|
| Footprint | 80 ft × 120 ft |
| Floor area | 9,600 sq ft |
| Eave height | 22 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.
Use
How a 80×120 Clear-Span Steel Building May Be Used
Warehouse
Clear-span width determines how the main space can be arranged and seated.
Arena
Ancillary rooms are commonly placed along one side or at one end.
Manufacturing
Entrance and exit placement follows the occupancy requirements for the use.
Example
Example Configuration
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 22 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 Clear-Span Steel Building
80′ × 100′
8,000 sq ft
80′ × 140′
11,200 sq ft
70′ × 120′
8,400 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
80 ft × 120 ft is 9,600 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 80x120 clear-span steel building planned as a clear-span floor whose value is uninterrupted stacking height and depth, not station count
This page is ordered around stack, because that is the decision this footprint settles first and every later choice follows from it.
The footprint holds 4 storage bays — 2 across by 2 deep — and leaves 26 feet of depth for a load-out lane kept clear along one wall so material can be reached and moved without disturbing the rest of the pile.
What distinguishes 80x120 is depth behaviour: 2 rows along 120 feet after 14 feet of circulation, with 26 feet unaccounted for at the end of the run. A building that cannot be reversed out of is a building that gets used in one direction only.
A 80 by 120 footprint is a clearly directional plan: 9,600 sq ft enclosed by 400 ft of wall, at a 1.5:1 length-to-width proportion. Along its 120 ft dimension it takes 3 runs of storage bays at 40 ft, leaving 0 ft over — the 0 ft is where the argument about this size actually happens. Taken purely as arithmetic, 80 by 120 gives 2 storage bays across the 80 ft dimension once 14 ft is reserved for movement, and 3 deep along the 120 ft dimension. Run as a a clear-span floor whose value is uninterrupted stacking height and depth, not station count, 6 ft across is below the 14 ft this use needs to be worth planning, so there is no load-out lane, so reaching material at the back of the pile means moving material at the front first Whether a clear-span building of a given size needs a permit, a setback or specific anchorage is determined by the authority having jurisdiction, not by the building's typology.
This footprint is planned as a clear-span floor whose value is uninterrupted stacking height and depth, not station count. Spent as a square 98 by 98 instead, the same 9,600 sq ft would stand 2 storage 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. Compared with a 80 by 90 of the same width, the extra depth here adds run rather than reach: it buys about 3 storage bays in line, and every position past the second is retrieved by moving what stands in front of it. A building of this size behaves like a small yard under a roof: zones need to be defined, signed and left alone, or they migrate. Material moves in bulk on a rotation cycle — received, stacked, and later reclaimed — rather than being picked piece by piece, so the handling equipment's reach and turning room inside the load-out lane matters more than any walking aisle. Utility distribution to fixed equipment positions or leaseable bays is usually planned before interior finish, since retrofitting service runs into an open clear span is disruptive once the floor is in use.
Areas, perimeter, roof area, ridge height, slab volume and the storage bay counts on this page are computed from the stored 80x120 record and this platform's planning module for the clear-span steel building category.
Allocation
Dividing the floor for a clear-span floor whose value is uninterrupted stacking height and depth, not station count
The use this column-free floor could equally be bought for is a column-free floor sized around turning and parking wheeled equipment, not fixed workstations: there is no turning apron, so every reposition becomes a multi-point manoeuvre around parked equipment. The floor is divided into stacking bays by product or rotation date, with a load-out lane running the length of one side so any bay can be reached without crossing another. Piling against every wall equally, with no reserved lane, is what makes older material unreachable.
Because 26 feet clears the 14 feet this platform treats as usable, the end of the run is a room rather than a gap: 2,080 square feet for a load-out lane kept clear along one wall so material can be reached and moved without disturbing the rest of the pile. Noise from this floor reaches the office, the neighbours and the yard, and separation is a plan decision.
The 20 feet of spare width runs the whole 120-foot length — 2,400 square feet of wall strip. It earns its keep as shelving, staging or a walking route, not as another storage bay. Temperature swing on a steel shell drives condensation decisions that outrank most layout preferences.
Spent as a square 98 by 98 instead, the same 9,600 sq ft would stand 2 storage 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. Compared with a 80 by 90 of the same width, the extra depth here adds run rather than reach: it buys about 3 storage bays in line, and every position past the second is retrieved by moving what stands in front of it. A building of this size behaves like a small yard under a roof: zones need to be defined, signed and left alone, or they migrate. Material moves in bulk on a rotation cycle — received, stacked, and later reclaimed — rather than being picked piece by piece, so the handling equipment's reach and turning room inside the load-out lane matters more than any walking aisle. Utility distribution to fixed equipment positions or leaseable bays is usually planned before interior finish, since retrofitting service runs into an open clear span is disruptive once the floor is in use. That movement pattern, not the 9,600-square-foot total, is what decides whether the leftover 26 feet is useful here.
Usable area
How the 9,600 square feet divides at 80x120
Computed storage bay fit for a 80x120 clear-span steel building
| Measure | Computed at this footprint |
|---|---|
| Storage bays across the 80-foot width | 2 at a 30-foot module |
| Leftover width | 20 ft (2,400 sq ft as a full-length strip) |
| Rows along the 120-foot length | 2 at a 40-foot module after 14 ft of circulation |
| Leftover depth | 26 ft (2,080 sq ft across the width) |
| Total storage bays | 4 |
| Share of floor committed | 50% |
Module footprint used here is 30 by 40 feet, this platform's planning module for a clear-span steel building. It is not a code minimum or an engineered clearance.
Example allocation of the 120-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Production floor | 66 ft | 5,280 sq ft |
| Material handling and staging | 33.6 ft | 2,688 sq ft |
| Support, office and utility | 20.4 ft | 1,632 sq ft |
Shares applied to the stored 120-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.
Openings
Openings for 2 storage bays across
The 80-foot gable can carry 2 openings, one per storage bay, with 20 feet of wall left for piers between and beside them — the arrangement that keeps each position independently reachable. Where the building sits on the site changes how much of this floor is genuinely reachable.
The 80 ft ends and the 120 ft sides offer very different opening budgets: 80 ft of end wall has room for one wide opening or two modest ones, while 120 ft of side wall can carry several without the openings competing. On this plan the deciding factor is whether bulk storage bay layout or load-out lane planning should be the first thing reached from the door.
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.
Height
Interior height for a 80x120 clear-span steel building
Span drives headroom at 80x120: 80 feet of width on a 4:12 pitch puts 35.3 feet over the middle and 22 feet at the walls, so where a tall item stands matters as much as how tall it is. Set the openings before the interior, because the openings cannot move and the interior can.
Clearance is set by the stacking height planned for the tallest bay plus the reach of the handling equipment above the pile, not by the eave alone.
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.
Configurations
Configuring 4 storage bays at 80x120
The columns win at this footprint: 24-foot nominal bays against a 30-foot module means every layout decision starts from where the frames fall. The count of working positions, not the headline area, is the figure that survives contact with the operation.
Depth here creates a hierarchy: 2 rows means front positions get used and rear positions get filled. Deciding which is which up front is what keeps 80x120 workable. Access, not area, is what makes a plan feel small once it is in use.
Growth adds bays along the load-out lane's length, keeping the lane itself intact rather than splitting it, because a broken load-out lane strands whatever bay lost its access.
Configured as a clear-span floor whose value is uninterrupted stacking height and depth, not station count, 80x120 is judged on whether the 4 storage bays it holds match the operation, and on whether the 20 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 120-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 dimension genuinely has to be crossed without a column?
- Is the clear height measured under the frame, or at the eave?
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.
Comparison
What changes at adjacent footprints
Computed comparison of nearby footprints for a clear-span steel building
| Footprint | Floor area | Storage bays |
|---|---|---|
| 50x80 | 4,000 sq ft | 4 (2 x 2) |
| 40x100 | 4,000 sq ft | 4 (2 x 2) |
| 60x80 | 4,800 sq ft | 6 (3 x 2) |
| 40x120 | 4,800 sq ft | 4 (2 x 2) |
| 50x100 | 5,000 sq ft | 6 (3 x 2) |
Areas computed from each stored size record; storage bay counts computed with the same 30 by 40 foot planning module.
- 50x80 holds the same 4 storage bays but changes the leftover depth by -16 feet, which is where the difference is actually felt.
- 40x100 holds the same 4 storage bays but changes the leftover depth by -22 feet, which is where the difference is actually felt.
- 60x80 moves the count from 4 to 6 storage bays (3 across by 2 deep), which is the reason to choose between them.
Nearby footprints read for a clear-span steel building: exact change in area and in planning storage bays
| Footprint | Area Δ | % Δ | Storage bays at that footprint | What changes for this use |
|---|---|---|---|---|
| 100x100 | +400 sq ft | +4.2% | 12 (4 x 3) | +8 storage bays on the same planning module. |
| 60x150 | −600 sq ft | −6.2% | 6 (2 x 3) | +2 storage bays on the same planning module. |
| 80x100 | −1,600 sq ft | −16.7% | 9 (3 x 3) | +5 storage bays on the same planning module. |
| 80x150 | +2,400 sq ft | +25% | 9 (3 x 3) | +5 storage bays on the same planning module. |
Areas are arithmetic on two stored size records; storage bay counts use this platform's 30 by 40 foot planning module and are not a capacity statement.
Because this footprint is planned as a clear-span floor whose value is uninterrupted stacking height and depth, not station count, the useful next reads are different from the ones a differently shaped clear-span steel building suggests: bulk storage bay layout, load-out lane planning, clear-span stacking building.
Visualization
Reading the 80x120 footprint as a clear-span steel building
FAQ
Questions about 80x120 clear-span steel building projects
Length extends in bays at the same span; widening the span later effectively means a different building Practically, the 120-foot dimension is the one that extends; the 80-foot span is fixed once the frames are set.
Reserving 14 ft across the 80 ft dimension for movement leaves 66 ft of working width, which takes 2 storage bays at 30 ft. Along 120 ft it takes 3 runs at 40 ft. That is 6 positions out of 9,600 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on can material at the back of the stack be reached without moving material stacked in front of it. These are planning figures computed from the footprint, not a quoted layout.
About 2,080 square feet across the width — enough for a load-out lane kept clear along one wall so material can be reached and moved without disturbing the rest of the pile.
Yes — material that must move on a first-in, first-out basis needs bays arranged so the oldest stock is never behind the newest along the only access route.
It depends on the width the operation must cross without a column, which is the defining requirement of the type. The stored configuration computes to 35.3 feet at the ridge, but the eave is the number that governs anything standing near a wall.
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.
- Storage bay fit: Counts, leftover strips and per-module areas are computed from the stored 80x120 record against this platform's 30 by 40 foot planning module for the clear-span steel building 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 production and industrial operations and are applied arithmetically to the stored 120-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 80x120
The estimate at 80x120 moves with four computed quantities: 9,600 square feet of floor, 400 feet of perimeter, 8,800 square feet of wall and 10,119 square feet of roof. Everything else is site and specification. Snow, wind and site exposure change what this shape costs to build long before the interior plan does.
Proportion drives cost here as much as size does: 400 ft of wall around 9,600 sq ft is 0.042 ft of wall per enclosed square foot, and a squarer plan of the same area would carry less. What moves the figure further on a a clear-span floor whose value is uninterrupted stacking height and depth, not station count is the fit-out bulk storage bay layout implies, along with framed openings and the height chosen for the 80 ft span.
- the span itself, which sets the primary frame
- clear height maintained under a deeper frame
- bracing strategy in the walls and roof
- opening positions the span makes possible
Drawn to scale
Plans and dimensions
Every drawing below is generated from the exact dimensions for this building, so proportions and areas are accurate.
Compare 80x120 clear-span steel building configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.