Building Types
100x100 Clear-Span Steel Building
- Width
- 100 ft
- Length
- 100 ft
- Floor area
- 10,000 sq ft
- Perimeter
- 400 ft
Quick dimensions
At a Glance
Width
100 ft across the gable end.
Length
100 ft along the sidewall.
Floor area
10,000 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 | 100 ft × 100 ft |
| Floor area | 10,000 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 100×100 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 100 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
100′ × 80′
8,000 sq ft
100′ × 120′
12,000 sq ft
90′ × 100′
9,000 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
100 ft × 100 ft is 10,000 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 100x100 clear-span steel building planned as an unfinished clear-span shell planned for a tenant or use that has not yet been decided
This page is ordered around sequence, because that is the decision this footprint settles first and every later choice follows from it.
4 divisible bays fit across the 100-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.
Commitment first: 75% of the 10,000 square feet goes to divisible bays at 625 square feet each, and 1,300 square feet survives as edge strip. A footprint is worth its own decision when that split lands where the work does. Neighbouring buildings, setbacks and the approach road often decide the orientation before the plan does.
A 100 by 100 footprint is a near-square plan: 10,000 sq ft enclosed by 400 ft of wall, at a 1:1 length-to-width proportion. Along its 100 ft dimension it takes 4 runs of divisible bays at 25 ft, leaving 0 ft over — the 0 ft is where the argument about this size actually happens. This mode treats the clear span as a blank the eventual occupant will divide, so the planning task is protecting future options rather than committing to one layout now. The building earns its value from how many different tenants or uses it could accommodate without structural rework, not from how well it fits any single one. The clear span exists to remove a specific obstruction — a turning radius, a lifting path, a stacking depth — and the plan should say which one before it says how large the building is.
This footprint is planned as an unfinished clear-span shell planned for a tenant or use that has not yet been decided. At 1:1 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 100 by 100 instead, the same 10,000 sq ft would stand 3 divisible bays across rather than 3, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. 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 100 by 100 plan is about 141 ft corner to corner, and the shortest useful one is the 100 ft cross-run. For a an unfinished clear-span shell planned for a tenant or use that has not yet been decided that matters where flexible shell building planning sits, because shortening the 100 ft run to serve it lengthens every trip along the 100 ft dimension. A clear span left undivided by plan, rather than by accident, keeps more future uses available than one filled in as needs arise.
Areas, perimeter, roof area, ridge height, slab volume and the divisible bay counts on this page are computed from the stored 100x100 record and this platform's planning module for the clear-span steel building category.
Configurations
Configuring 12 divisible bays at 100x100
Nominal bay division computes to 4 bays at about 25 feet, wider than the 25-foot module — so a position can sit inside a bay without a frame line splitting it. The corner nobody plans for is the one that fills first, which is an argument for planning it.
With 3 rows deep, the rear row is behind the front one. Without a route past it, those divisible bays become storage positions rather than working ones — the real cost of depth at this width. What the building holds in its busiest week is the honest brief; the rest of the year is slack.
Extension is cheapest along the 100 ft dimension, where each added bay repeats work already framed; widening past 100 ft is a different frame rather than a longer one. Growing to 100 by 125 adds a 5th run of divisible bays — useful if the constraint is divisible bays rather than the 0 ft already spare at the far end.
Configured as an unfinished clear-span shell planned for a tenant or use that has not yet been decided, 100x100 is judged on whether the 12 divisible 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 an interior street with independent zones on both sides and turning room at each end, or does it need a second lane that this 100-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?
- 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.
Openings
Openings for 4 divisible bays across
Openings are the pinch point here. With 0 feet of spare width the gable cannot host 4 separate doors, so access is either shared or moved to the 100-foot sidewall. Interior divisions are the last decision that should be fixed, because they are the first one that usually changes.
Door placement is planned for whichever future division is most likely, generally one door per notional bay, so a later demising wall does not leave a bay without its own access.
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.
Usable area
How the 10,000 square feet divides at 100x100
Computed divisible bay fit for a 100x100 clear-span steel building
| Measure | Computed at this footprint |
|---|---|
| Divisible bays across the 100-foot width | 4 at a 25-foot module |
| Leftover width | 0 ft (0 sq ft as a full-length strip) |
| Rows along the 100-foot length | 3 at a 25-foot module after 12 ft of circulation |
| Leftover depth | 13 ft (1,300 sq ft across the width) |
| Total divisible bays | 12 |
| Share of floor committed | 75% |
Module footprint used here is 25 by 25 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 100-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Production floor | 55 ft | 5,500 sq ft |
| Material handling and staging | 28 ft | 2,800 sq ft |
| Support, office and utility | 17 ft | 1,700 sq ft |
Shares applied to the stored 100-foot length; areas computed against the 100-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 an unfinished clear-span shell planned for a tenant or use that has not yet been decided
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 shell is planned around notional demising lines spaced so any one, two or three of the resulting bays can be combined or split without cutting through a door or a utility run. Committing interior walls before a tenant is known is what forecloses that flexibility.
Depth arithmetic leaves a working end zone here. 1,300 square feet sits past the last row, which is why 100x100 tends to be planned with a demising line left unbuilt but planned for, so the shell can be split into separate leaseable bays without reworking the structure designed in rather than added later. The plan should survive the day the largest item the operation owns has to come inside.
Width is fully committed at 100x100. With 0 feet spare, wall storage and passing room compete with the divisible bays directly. A leftover strip earns its place only when something is deliberately put in it; otherwise it is circulation with a nicer name.
At 1:1 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 100 by 100 instead, the same 10,000 sq ft would stand 3 divisible bays across rather than 3, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. 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 100 by 100 plan is about 141 ft corner to corner, and the shortest useful one is the 100 ft cross-run. For a an unfinished clear-span shell planned for a tenant or use that has not yet been decided that matters where flexible shell building planning sits, because shortening the 100 ft run to serve it lengthens every trip along the 100 ft dimension. A clear span left undivided by plan, rather than by accident, keeps more future uses available than one filled in as needs arise. That movement pattern, not the 10,000-square-foot total, is what decides whether the leftover 13 feet is useful here.
Height
Interior height for a 100x100 clear-span steel building
The stored configuration carries a 22-foot eave and computes to 38.7 feet at the ridge on a 4:12 pitch — a 16.7-foot rise across 100 feet. Height is therefore not uniform, and the sidewall is the constraint. Plan the exit as carefully as the entrance; buildings are emptied under more time pressure than they are filled.
A uniform clear height across the whole shell is worth more than a taller section in one area, because a taller pocket only benefits whichever future tenant happens to land on 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 clear-span steel building
| Footprint | Floor area | Divisible 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; divisible bay counts computed with the same 25 by 25 foot planning module.
- 50x80 moves the count from 12 to 4 divisible bays (2 across by 2 deep), which is the reason to choose between them.
- 40x100 moves the count from 12 to 4 divisible bays (2 across by 2 deep), which is the reason to choose between them.
- 60x80 moves the count from 12 to 6 divisible 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 divisible bays
| Footprint | Area Δ | % Δ | Divisible bays at that footprint | What changes for this use |
|---|---|---|---|---|
| 80x120 | −400 sq ft | −4% | 4 (2 x 2) | −8 divisible bays on the same planning module. |
| 100x120 | +2,000 sq ft | +20% | 6 (3 x 2) | −6 divisible bays on the same planning module. |
| 80x100 | −2,000 sq ft | −20% | 9 (3 x 3) | −3 divisible bays on the same planning module. |
Areas are arithmetic on two stored size records; divisible bay counts use this platform's 25 by 25 foot planning module and are not a capacity statement.
Because this footprint is planned as an unfinished clear-span shell planned for a tenant or use that has not yet been decided, the useful next reads are different from the ones a differently shaped clear-span steel building suggests: flexible shell building planning, demising line planning, multi-tenant clear-span shell.
Visualization
Reading the 100x100 footprint as a clear-span steel building
FAQ
Questions about 100x100 clear-span steel building projects
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 38.7 feet at the ridge, but the eave is the number that governs anything standing near a wall.
Reserving 12 ft across the 100 ft dimension for movement leaves 88 ft of working width, which takes 3 divisible bays at 25 ft. Along 100 ft it takes 4 runs at 25 ft. That is 12 positions out of 10,000 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on if this shell is split into two or three tenancies later, does each resulting bay still get its own door and utility access. These are planning figures computed from the footprint, not a quoted layout.
4 divisible bays fit across the 100-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. Those counts use a 25 by 25 foot planning module with 12 feet allowed for circulation, so a different module changes the answer.
By planning demising lines at the time of design so they fall between structural bays, not on top of them, and by stubbing utilities to each planned line in advance.
A 6-inch slab across 10,000 square feet computes to 185.2 cubic yards before thickened edges, piers or waste. The final design comes from the foundation engineer.
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.
- Divisible bay fit: Counts, leftover strips and per-module areas are computed from the stored 100x100 record against this platform's 25 by 25 foot planning module for the clear-span steel building category, with 12 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.
Cost drivers
Quantities that move the estimate at 100x100
No price appears on this page. The quantities that scale an estimate at 100x100 are 10,000 square feet of slab, 185.2 cubic yards of nominal concrete, 8,800 square feet of wall cladding and 10,541 square feet of roof cladding. Utilities entering on the wrong elevation quietly rewrite the interior layout.
Proportion drives cost here as much as size does: 400 ft of wall around 10,000 sq ft is 0.04 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 an unfinished clear-span shell planned for a tenant or use that has not yet been decided is the fit-out flexible shell building planning implies, along with framed openings and the height chosen for the 100 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 100x100 clear-span steel building configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.