Building Types
80x100 Manufacturing Steel Building
- Width
- 80 ft
- Length
- 100 ft
- Floor area
- 8,000 sq ft
- Perimeter
- 360 ft

Quick dimensions
At a Glance
Width
80 ft across the gable end.
Length
100 ft along the sidewall.
Floor area
8,000 sq ft of clear floor.
Eave height
20 ft at the sidewall on the stored profile.
Configuration
How This Building Is Configured
Configuration summary
| Building type | Manufacturing Building |
|---|---|
| Footprint | 80 ft × 100 ft |
| Floor area | 8,000 sq ft |
| Eave height | 20 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 is commonly the governing dimension here, because clearance for the tallest item sets the door and the wall.
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 80×100 Manufacturing Building May Be Used
Production or storage flow
Material entering one end and leaving the other is a common organising principle.
Loading access
Dock or grade-level door placement is usually decided before the frame layout.
Racking and clear height
Usable stacking height depends on eave height and any interior structure.
Equipment and services
Power, compressed air and lighting layouts follow the bay spacing.
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 20 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 Manufacturing Building
80′ × 80′
6,400 sq ft
80′ × 120′
9,600 sq ft
70′ × 100′
7,000 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
80 ft × 100 ft is 8,000 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.
Cost drivers
Quantities that move the estimate at 80x100
Quantities, not prices, are publishable here: roof cladding runs 8,433 square feet — 5% above the 8,000-square-foot floor at a 4:12 pitch — with 148.1 cubic yards of nominal slab beneath it. Whoever operates the building daily should read the plan before it is frozen, because they know where the pinch points are.
Proportion drives cost here as much as size does: 360 ft of wall around 8,000 sq ft is 0.045 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 several self-contained production cells sharing one floor is the fit-out cellular manufacturing layout implies, along with framed openings and the height chosen for the 80 ft span.
- clear height for machine access and overhead handling
- power capacity for the equipment set
- foundation and slab requirements under machines, which are engineering items
- extraction at process positions
Overview
A 80x100 manufacturing building planned as several self-contained production cells sharing one floor
This page is ordered around cells and the aisle they open onto, because independence between simultaneous jobs is a circulation property before it is a layout one.
The footprint holds 6 cells — 3 across by 2 deep — and leaves 24 feet of depth for a spine aisle every cell opens onto, plus a shared tool and consumables position within reach of all of them.
Commitment first: 59% of the 8,000 square feet goes to cells at 780 square feet each, and 2,120 square feet survives as edge strip. A footprint is worth its own decision when that split lands where the work does. The mezzanine that is added afterwards is the change order that reprices the frame.
A 80 by 100 footprint is a mildly directional plan: 8,000 sq ft enclosed by 360 ft of wall, at a 1.3:1 length-to-width proportion. Along its 100 ft dimension it takes 3 runs of cells at 30 ft, leaving 10 ft over — the 10 ft is where the argument about this size actually happens. A cellular plan trades line efficiency for flexibility: each cell completes a product or a family of products, and the floor can run several unrelated jobs at once. What makes it work is the aisle, not the cells — independence is a circulation property before it is a layout one. Maintenance access is designed in or bought back later in downtime, and downtime is the expensive currency here.
This footprint is planned as several self-contained production cells sharing one floor. Spent as a square 89 by 89 instead, the same 8,000 sq ft would stand 2 cells 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 80 of the same width, the extra depth here adds run rather than reach: it buys about 3 cells 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. The longest internal travel on a 80 by 100 plan is about 128 ft corner to corner, and the shortest useful one is the 80 ft cross-run. For a several self-contained production cells sharing one floor that matters where cellular manufacturing layout sits, because shortening the 80 ft run to serve it lengthens every trip along the 100 ft dimension. Where work in progress waits is the single most informative thing about how a production floor actually runs.
Areas, perimeter, roof area, ridge height, slab volume and the cell counts on this page are computed from the stored 80x100 record and this platform's planning module for the manufacturing building category.
Allocation
Dividing the floor for several self-contained production cells sharing one floor
The production arrangement this floor could equally be laid out for is an assembly floor with a separated finishing end: there is no separated finishing end, so finishing happens on the assembly floor and is scheduled around it rather than run alongside it. Dividing the 8,000 sq ft by the 26 by 30 ft cell gives roughly 6 positions before circulation is deducted a second time for cross movement. Whether the plan keeps 6 or drops to 3 comes back to the question this footprint is really answering: can this floor hold independent cells that are each reached from a shared aisle, or only zones that share a route through the work?
Depth arithmetic leaves a working end zone here. 1,920 square feet sits past the last row, which is why 80x100 tends to be planned with a spine aisle every cell opens onto, plus a shared tool and consumables position within reach of all of them designed in rather than added later. Storage expands until it meets a wall, so give it a wall on purpose.
Width is fully committed at 80x100. With 2 feet spare, wall storage and passing room compete with the cells directly. Judge the plan by what has to happen on the worst day of the year, not on an average one.
Spent as a square 89 by 89 instead, the same 8,000 sq ft would stand 2 cells 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 80 of the same width, the extra depth here adds run rather than reach: it buys about 3 cells 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. The longest internal travel on a 80 by 100 plan is about 128 ft corner to corner, and the shortest useful one is the 80 ft cross-run. For a several self-contained production cells sharing one floor that matters where cellular manufacturing layout sits, because shortening the 80 ft run to serve it lengthens every trip along the 100 ft dimension. Where work in progress waits is the single most informative thing about how a production floor actually runs. That movement pattern, not the 8,000-square-foot total, is what decides whether the leftover 24 feet is useful here.
Configurations
Configuring 6 cells at 80x100
The columns win at this footprint: 25-foot nominal bays against a 26-foot module means every layout decision starts from where the frames fall. Rows that cannot be entered independently end up used as one long space.
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 80x100 workable. Circulation width is the first thing surrendered under pressure and the first thing missed afterwards.
Growth is a cell at a time along the spine, which is why the spine's extendable end should be kept free of the fixed functions that want to sit at a wall.
Configured as several self-contained production cells sharing one floor, 80x100 is judged on whether the 6 cells it holds match the operation, and on whether the 2 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 100-foot length being bought for depth, or for the repeated bays — eight to ten repeated bays, which makes the layout a scheduling problem as much as a spatial one?
- Is the machine list fixed, and has the line order been drawn before the building?
- Can a machine be removed and replaced without shutting the line?
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 8,000 square feet divides at 80x100
Computed cell fit for a 80x100 manufacturing building
| Measure | Computed at this footprint |
|---|---|
| Cells across the 80-foot width | 3 at a 26-foot module |
| Leftover width | 2 ft (200 sq ft as a full-length strip) |
| Rows along the 100-foot length | 2 at a 30-foot module after 16 ft of circulation |
| Leftover depth | 24 ft (1,920 sq ft across the width) |
| Total cells | 6 |
| Share of floor committed | 59% |
Module footprint used here is 26 by 30 feet, this platform's planning module for a manufacturing building. It is not a code minimum or an engineered clearance.
Example allocation of the 100-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Production floor | 55 ft | 4,400 sq ft |
| Material handling and staging | 28 ft | 2,240 sq ft |
| Support, office and utility | 17 ft | 1,360 sq ft |
Shares applied to the stored 100-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 3 cells across
At 80 feet the gable will not comfortably take one opening per cell: 3 positions with 2 feet spare leaves too little wall for piers. A single wider opening, or a sidewall opening, is the workable route. The plan is only as good as the route into it, which is a site question rather than a building one.
One material entrance onto the spine serves the whole floor, which is the arrangement's main advantage. A second opening at the far end saves the longest travel and is worth its cost on a deep plan.
Material received at the head of the line and product shipped from the tail, which is what keeps the two flows from colliding.
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 80x100 manufacturing building
The stored configuration carries a 20-foot eave and computes to 33.3 feet at the ridge on a 4:12 pitch — a 13.3-foot rise across 80 feet. Height is therefore not uniform, and the sidewall is the constraint. Two feet of spare width reads as nothing on a plan and as a great deal when a machine is being turned.
Height on a 80 ft span is a separate decision from the 100 ft length, and it is the span that sets the frame's behavior. Raising the eave over 8,000 sq ft affects every bay along the 100 ft dimension, so the test is whether cellular manufacturing layout genuinely needs the extra clear height or only the floor area.
Ventilation across 8,000 square feet at this height: process extraction at machine positions, planned with the equipment rather than after it.
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.
Comparison
What changes at adjacent footprints
Computed comparison of nearby footprints for a manufacturing building
| Footprint | Floor area | Cells |
|---|---|---|
| 40x80 | 3,200 sq ft | 4 (2 x 2) |
| 60x60 | 3,600 sq ft | 2 (2 x 1) |
| 50x80 | 4,000 sq ft | 4 (2 x 2) |
| 40x100 | 4,000 sq ft | 6 (2 x 3) |
| 60x80 | 4,800 sq ft | 2 (2 x 1) |
Areas computed from each stored size record; cell counts computed with the same 26 by 30 foot planning module.
- 40x80 moves the count from 6 to 4 cells (2 across by 2 deep), which is the reason to choose between them.
- 60x60 moves the count from 6 to 2 cells (2 across by 1 deep), which is the reason to choose between them.
- 50x80 moves the count from 6 to 4 cells (2 across by 2 deep), which is the reason to choose between them.
Nearby footprints read for a manufacturing building: exact change in area and in planning cells
| Footprint | Area Δ | % Δ | Cells at that footprint | What changes for this use |
|---|---|---|---|---|
| 50x150 | −500 sq ft | −6.2% | 10 (2 x 5) | +4 cells on the same planning module. |
| 60x150 | +1,000 sq ft | +12.5% | 15 (3 x 5) | +9 cells on the same planning module. |
| 80x120 | +1,600 sq ft | +20% | 9 (3 x 3) | +3 cells on the same planning module. |
| 80x80 | −1,600 sq ft | −20% | 3 (3 x 1) | −3 cells on the same planning module. |
Areas are arithmetic on two stored size records; cell counts use this platform's 26 by 30 foot planning module and are not a capacity statement.
Because this footprint is planned as several self-contained production cells sharing one floor, the useful next reads are different from the ones a differently shaped manufacturing building suggests: cellular manufacturing layout, spine aisle, shared tooling position.
Visualization
Reading the 80x100 footprint as a manufacturing building
FAQ
Questions about 80x100 manufacturing building projects
Length here buys 2 rows and 4 nominal bays; width buys 3 positions side by side. At this aspect ratio both dimensions are still adding usable positions.
Reserving 16 ft across the 80 ft dimension for movement leaves 64 ft of working width, which takes 2 cells at 26 ft. Along 100 ft it takes 3 runs at 30 ft. That is 6 positions out of 8,000 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on can this floor hold independent cells that are each reached from a shared aisle, or only zones that share a route through the work. These are planning figures computed from the footprint, not a quoted layout.
The line extends, so length is the growth dimension and the building is planned with the next machine already in mind Practically, the 100-foot dimension is the one that extends; the 80-foot span is fixed once the frames are set.
A shared aisle every cell opens onto, and shared functions placed on that aisle rather than inside a cell. Without both, cells are adjacent rather than independent.
About 1,920 square feet across the width — enough for a spine aisle every cell opens onto, plus a shared tool and consumables position within reach of all of them.
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.
- Cell fit: Counts, leftover strips and per-module areas are computed from the stored 80x100 record against this platform's 26 by 30 foot planning module for the manufacturing building category, with 16 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 100-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.
Compare 80x100 manufacturing building configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.




