Building Types
30x100 Steel Restaurant Building
- Width
- 30 ft
- Length
- 100 ft
- Floor area
- 3,000 sq ft
- Perimeter
- 260 ft

Example
Example Configuration

Quick dimensions
At a Glance
Width
30 ft across the gable end.
Length
100 ft along the sidewall.
Floor area
3,000 sq ft of clear floor.
Eave height
14 ft at the sidewall on the stored profile.
Use
How a 30×100 Restaurant Building May Be Used
Customer-facing area
Frontage, entry placement and glazing are planned with local requirements in mind.
Back-of-house
Storage and staff areas are commonly separated from the public floor.
Parking and approach
Site circulation often has more effect on the layout than the building itself.
Future fit-out
Clear-span interiors leave partition placement to the fit-out stage.
Configuration
How This Building Is Configured
Configuration summary
| Building type | Restaurant Building |
|---|---|
| Footprint | 30 ft × 100 ft |
| Floor area | 3,000 sq ft |
| Eave height | 14 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 30 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.
Similar sizes
Other Sizes for a Restaurant Building
30′ × 80′
2,400 sq ft
30′ × 120′
3,600 sq ft
20′ × 100′
2,000 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
30 ft × 100 ft is 3,000 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 30x100 restaurant building planned as a kitchen-led building where production outweighs the dining room
This page is ordered around how quickly the room changes, because an events floor is judged on reconfiguration rather than on any one layout.
The footprint holds 10 production zones — 2 across by 5 deep — and leaves 11 feet of depth for a dispatch and pickup area separate from the dining entrance, so delivery and takeout traffic never enters the room.
What distinguishes 30x100 is depth behaviour: 5 rows along 100 feet after 9 feet of circulation, with 11 feet unaccounted for at the end of the run. Whoever operates the building daily should read the plan before it is frozen, because they know where the pinch points are.
A 30 by 100 footprint is a long corridor of a plan: 3,000 sq ft enclosed by 260 ft of wall, at a 3.3:1 length-to-width proportion. Along its 100 ft dimension it takes 6 runs of production zones at 16 ft, leaving 4 ft over — the 4 ft is where the argument about this size actually happens. Taken purely as arithmetic, 30 by 100 gives 1 production zones across the 30 ft dimension once 9 ft is reserved for movement, and 6 deep along the 100 ft dimension. Run as a a kitchen-led building where production outweighs the dining room, 9 ft across is below the 10 ft this use needs to be worth planning, so there is no separate dispatch area, so delivery drivers and dining guests use the same door and the same few square feet Goods-in routes and waste storage are planned with the layout or they end up at the guest entrance.
At 30x100 the operating question is a specific one: how much of what this kitchen produces leaves the building rather than crossing to a table? That is a different question from the one a restaurant building of another shape has to answer, and it is why this footprint is planned as a kitchen-led building where production outweighs the dining room rather than as generic covered area.
Areas, perimeter, roof area, ridge height, slab volume and the production zone counts on this page are computed from the stored 30x100 record and this platform's planning module for the restaurant building category.
Configurations
Configuring 10 production zones at 30x100
Nominal bay division computes to 4 bays at about 25 feet, wider than the 12-foot module — so a position can sit inside a bay without a frame line splitting it. The span is the commitment; everything inside it is rearrangeable later, and the 30-foot dimension is not.
Depth here creates a hierarchy: 5 rows means front positions get used and rear positions get filled. Deciding which is which up front is what keeps 30x100 workable. Doors and their approaches decide more about daily use here than the enclosed area does.
Capacity grows in the kitchen and in dispatch, rarely in seats.
Configured as a kitchen-led building where production outweighs the dining room, 30x100 is judged on whether the 10 production zones it holds match the operation, and on whether the 6 feet of spare width leaves the route this mode depends on.
- Does the work need two parked lanes side by side, or one lane and a genuine workbench run, or does it need a second lane that this 30-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?
- How deep is the kitchen, and what does the dining room get from what remains?
- Where does extraction run, and does that set the building height?
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 3,000 square feet divides at 30x100
Computed production zone fit for a 30x100 restaurant building
| Measure | Computed at this footprint |
|---|---|
| Production zones across the 30-foot width | 2 at a 12-foot module |
| Leftover width | 6 ft (600 sq ft as a full-length strip) |
| Rows along the 100-foot length | 5 at a 16-foot module after 9 ft of circulation |
| Leftover depth | 11 ft (330 sq ft across the width) |
| Total production zones | 10 |
| Share of floor committed | 64% |
Module footprint used here is 12 by 16 feet, this platform's planning module for a restaurant 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 |
|---|---|---|
| Primary operating area | 60 ft | 1,800 sq ft |
| Customer or staff area | 22 ft | 660 sq ft |
| Back of house and utility | 18 ft | 540 sq ft |
Shares applied to the stored 100-foot length; areas computed against the 30-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 kitchen-led building where production outweighs the dining room
The service model this floor could equally be operated under is a room reconfigured for events rather than laid out for covers: there is no furniture store adjacent, so tables and chairs are moved to another building every time the layout changes. Kitchen and cold storage take the largest share, dispatch takes a defined area near a separate door, and dining takes the remainder.
Depth arithmetic leaves a working end zone here. 330 square feet sits past the last row, which is why 30x100 tends to be planned with a dispatch and pickup area separate from the dining entrance, so delivery and takeout traffic never enters the room designed in rather than added later. Daylight placement changes how a floor is used far more than its cost suggests.
The 6 feet of spare width runs the whole 100-foot length — 600 square feet of wall strip. It earns its keep as shelving, staging or a walking route, not as another production zone. Security and after-hours access are easier to design in the door layout than to bolt on later.
Compared with a 30 by 80 of the same width, the extra depth here adds run rather than reach: it buys about 6 production zones in line, and every position past the second is retrieved by moving what stands in front of it. Spent as a square 55 by 55 instead, the same 3,000 sq ft would stand 3 production zones across rather than 1, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. This is the scale at which informal habits start to fail: two people working at once need the routes named on the plan rather than agreed by memory. Two output streams — plated and packed — share one kitchen and need separate exits. Where they share one, both slow down at peak. Occupant load, egress and accessibility are determined for the specific project by the design professional and the authority having jurisdiction. That movement pattern, not the 3,000-square-foot total, is what decides whether the leftover 11 feet is useful here.
Openings
Openings for 2 production zones across
The 30-foot gable can carry 2 openings, one per production zone, with 6 feet of wall left for piers between and beside them — the arrangement that keeps each position independently reachable. The floor treatment is a use decision that outlasts most of the equipment standing on it.
The 30 ft ends and the 100 ft sides offer very different opening budgets: 30 ft of end wall has room for one wide opening or two modest ones, while 100 ft of side wall can carry several without the openings competing. On this plan the deciding factor is whether kitchen led restaurant or dispatch separation should be the first thing reached from the door.
Deliveries arrive at a rear door straight into storage, because stock crossing a dining room is not workable.
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 30x100 restaurant building
Span drives headroom at 30x100: 30 feet of width on a 3:12 pitch puts 17.8 feet over the middle and 14 feet at the walls, so where a tall item stands matters as much as how tall it is. The building is fixed for decades while the operation inside it changes every few years, and the plan has to survive that.
Kitchen ventilation and refrigeration set the height and services. Both are engineered for the specific equipment schedule.
Ventilation across 3,000 square feet at this height: kitchen extraction and dining-room make-up air are a single system decision, and the most consequential one in the building.
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.
Cost drivers
Quantities that move the estimate at 30x100
The estimate at 30x100 moves with four computed quantities: 3,000 square feet of floor, 260 feet of perimeter, 3,640 square feet of wall and 3,092 square feet of roof. Everything else is site and specification. Two operations of the same size can want opposite plans, so the arithmetic below is a starting point rather than a recommendation.
Proportion drives cost here as much as size does: 260 ft of wall around 3,000 sq ft is 0.087 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 kitchen-led building where production outweighs the dining room is the fit-out kitchen led restaurant implies, along with framed openings and the height chosen for the 30 ft span.
- kitchen extraction and make-up air
- the equipment schedule and the services it requires
- restroom and dining-room fit-out
- front-of-house appearance and site work
Comparison
What changes at adjacent footprints
Computed comparison of nearby footprints for a restaurant building
| Footprint | Floor area | Production zones |
|---|---|---|
| 30x40 | 1,200 sq ft | 6 (3 x 2) |
| 24x50 | 1,200 sq ft | 6 (2 x 3) |
| 32x40 | 1,280 sq ft | 6 (3 x 2) |
| 36x40 | 1,440 sq ft | 6 (3 x 2) |
| 24x60 | 1,440 sq ft | 8 (2 x 4) |
Areas computed from each stored size record; production zone counts computed with the same 12 by 16 foot planning module.
- 30x40 moves the count from 10 to 6 production zones (3 across by 2 deep), which is the reason to choose between them.
- 24x50 moves the count from 10 to 6 production zones (2 across by 3 deep), which is the reason to choose between them.
- 32x40 moves the count from 10 to 6 production zones (3 across by 2 deep), which is the reason to choose between them.
Nearby footprints read for a restaurant building: exact change in area and in planning production zones
| Footprint | Area Δ | % Δ | Production zones at that footprint | What changes for this use |
|---|---|---|---|---|
| 40x80 | +200 sq ft | +6.7% | 15 (3 x 5) | +5 production zones on the same planning module. |
| 40x70 | −200 sq ft | −6.7% | 12 (3 x 4) | +2 production zones on the same planning module. |
| 30x80 | −600 sq ft | −20% | 8 (2 x 4) | −2 production zones on the same planning module. |
| 40x100 | +1,000 sq ft | +33.3% | 15 (3 x 5) | +5 production zones on the same planning module. |
Areas are arithmetic on two stored size records; production zone counts use this platform's 12 by 16 foot planning module and are not a capacity statement.
Because this footprint is planned as a kitchen-led building where production outweighs the dining room, the useful next reads are different from the ones a differently shaped restaurant building suggests: kitchen led restaurant, dispatch separation, dual output streams.
Visualization
Reading the 30x100 footprint as a restaurant building
FAQ
Questions about 30x100 restaurant building projects
3,640 square feet of wall and 3,092 square feet of roof at a 3:12 pitch — the roof exceeding the floor by 3%.
Reserving 9 ft across the 30 ft dimension for movement leaves 21 ft of working width, which takes 1 production zones at 12 ft. Along 100 ft it takes 6 runs at 16 ft. That is 6 positions out of 3,000 sq ft, and the remainder is circulation, walls and the margin every plan needs. Whether that count is enough depends on how much of what this kitchen produces leaves the building rather than crossing to a table. These are planning figures computed from the footprint, not a quoted layout.
The width leaves 6 feet spare after 2 production zones. That margin absorbs wall storage and passing room. Width is the dimension that cannot be extended later.
From the equipment schedule and the intended output, with utility capacity for the site checked before the layout is fixed.
Length here buys 5 rows and 4 nominal bays; width buys 2 positions side by side. At this aspect ratio the building is already long for its span, so extra length adds depth rather than capacity.
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.
- Production zone fit: Counts, leftover strips and per-module areas are computed from the stored 30x100 record against this platform's 12 by 16 foot planning module for the restaurant building category, with 9 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 commercial and customer-facing 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 30x100 restaurant building configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.




