Building Types
30x80 Steel Restaurant Building
- Width
- 30 ft
- Length
- 80 ft
- Floor area
- 2,400 sq ft
- Perimeter
- 220 ft
Example
Example Configuration
Quick dimensions
At a Glance
Width
30 ft across the gable end.
Length
80 ft along the sidewall.
Floor area
2,400 sq ft of clear floor.
Eave height
14 ft at the sidewall on the stored profile.
Use
How a 30×80 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 × 80 ft |
| Floor area | 2,400 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′ × 60′
1,800 sq ft
30′ × 100′
3,000 sq ft
20′ × 80′
1,600 sq ft
Related
Related Building Types
Example configuration — for planning purposes only.
FAQ
Common Questions
30 ft × 80 ft is 2,400 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 30x80 restaurant building planned as a kitchen-led building where production outweighs the dining room
This page is ordered around how far a server walks, because table service is a walking-distance problem before it is a seating one.
The footprint holds 8 production zones — 2 across by 4 deep — and the remaining 7 feet is marginal: there is no separate dispatch area, so delivery drivers and dining guests use the same door and the same few square feet.
Efficiency is the useful number here: 300 square feet of enclosed floor per production zone, against a 192-square-foot module. That leaves working slack around each position. Long spans buy flexibility that is only worth paying for if the operation actually changes shape.
A 30 by 80 footprint is a long corridor of a plan: 2,400 sq ft enclosed by 220 ft of wall, at a 2.7:1 length-to-width proportion. Along its 80 ft dimension it takes 5 runs of production zones at 16 ft, leaving 0 ft over — the 0 ft is where the argument about this size actually happens. Taken purely as arithmetic, 30 by 80 gives 1 production zones across the 30 ft dimension once 9 ft is reserved for movement, and 5 deep along the 80 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 Restroom provision follows the adopted requirements for the jurisdiction rather than the building's size.
This footprint is planned as a kitchen-led building where production outweighs the dining room. Compared with a 30 by 60 of the same width, the extra depth here adds run rather than reach: it buys about 5 production zones in line, and every position past the second is retrieved by moving what stands in front of it. Spent as a square 49 by 49 instead, the same 2,400 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. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. Two output streams — plated and packed — share one kitchen and need separate exits. Where they share one, both slow down at peak. Grease, water and drainage locations are among the hardest things to move after opening.
Areas, perimeter, roof area, ridge height, slab volume and the production zone counts on this page are computed from the stored 30x80 record and this platform's planning module for the restaurant building category.
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 full table service, where server routes decide the plan: there are no service stations, so every small errand becomes a trip to the kitchen and across the dining room. Kitchen and cold storage take the largest share, dispatch takes a defined area near a separate door, and dining takes the remainder.
There is no end zone at this footprint. 7 feet is circulation slack, not floor area with a purpose, and there is no separate dispatch area, so delivery drivers and dining guests use the same door and the same few square feet. Depth is bought cheaply and width expensively, which is why this proportion tends to be argued about before anything else.
The 6 feet of spare width runs the whole 80-foot length — 480 square feet of wall strip. It earns its keep as shelving, staging or a walking route, not as another production zone. Height is the dimension people regret; it cannot be added later without rebuilding the frame line.
Compared with a 30 by 60 of the same width, the extra depth here adds run rather than reach: it buys about 5 production zones in line, and every position past the second is retrieved by moving what stands in front of it. Spent as a square 49 by 49 instead, the same 2,400 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. At this scale the building is usually operated by one or two people who know where everything is, so the plan can be loose and the doors matter more than the divisions. Two output streams — plated and packed — share one kitchen and need separate exits. Where they share one, both slow down at peak. Grease, water and drainage locations are among the hardest things to move after opening. That movement pattern, not the 2,400-square-foot total, is what decides whether the leftover 7 feet is useful here.
Configurations
Configuring 8 production zones at 30x80
Nominal bay division computes to 4 bays at about 20 feet, wider than the 12-foot module — so a position can sit inside a bay without a frame line splitting it. A wider bay is a structural decision and a longer bay is a layout decision; the two are often confused.
Two-plus rows change the access question entirely. Every rear position at 30x80 needs either its own opening or an aisle, and 6 feet of spare width is what that aisle has to come from. Service routes are cheap to plan now and expensive to retrofit through a finished shell.
Capacity grows in the kitchen and in dispatch, rarely in seats.
Configured as a kitchen-led building where production outweighs the dining room, 30x80 is judged on whether the 8 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 80-foot length being bought for depth, or for the repeated bays — six to eight repeated bays, and the bay line becomes the organising device for the whole plan?
- 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 2,400 square feet divides at 30x80
Computed production zone fit for a 30x80 restaurant building
| Measure | Computed at this footprint |
|---|---|
| Production zones across the 30-foot width | 2 at a 12-foot module |
| Leftover width | 6 ft (480 sq ft as a full-length strip) |
| Rows along the 80-foot length | 4 at a 16-foot module after 9 ft of circulation |
| Leftover depth | 7 ft (210 sq ft across the width) |
| Total production zones | 8 |
| 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 80-foot length — planning model, not survey data
| Zone | Length along the building | Computed area |
|---|---|---|
| Primary operating area | 48 ft | 1,440 sq ft |
| Customer or staff area | 17.6 ft | 528 sq ft |
| Back of house and utility | 14.4 ft | 432 sq ft |
Shares applied to the stored 80-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.
Openings
Openings for 2 production zones across
One opening per position works on this gable: 2 across 30 feet, with 6 feet of wall to distribute as piers. Splitting that margin evenly is what keeps the elevation buildable. Cleaning, maintenance and inspection all need reach, and reach is planned in the gaps rather than in the modules.
The 30 ft ends and the 80 ft sides offer very different opening budgets: 30 ft of end wall has room for one wide opening or two modest ones, while 80 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 30x80 restaurant building
The stored configuration carries a 14-foot eave and computes to 17.8 feet at the ridge on a 3:12 pitch — a 3.8-foot rise across 30 feet. Height is therefore not uniform, and the sidewall is the constraint. Every foot of width added multiplies through the roof and the frame; every foot of length mostly adds skin.
Height on a 30 ft span is a separate decision from the 80 ft length, and it is the span that sets the frame's behavior. Raising the eave over 2,400 sq ft affects every bay along the 80 ft dimension, so the test is whether kitchen led restaurant genuinely needs the extra clear height or only the floor area.
Ventilation across 2,400 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 30x80
The estimate at 30x80 moves with four computed quantities: 2,400 square feet of floor, 220 feet of perimeter, 3,080 square feet of wall and 2,474 square feet of roof. Everything else is site and specification. A building that cannot be reversed out of is a building that gets used in one direction only.
Equipment, ventilation and refrigeration dominate, and the dining fit-out is a minor part. Utility capacity is checked for the specific site early.
- 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 |
|---|---|---|
| 24x40 | 960 sq ft | 4 (2 x 2) |
| 20x50 | 1,000 sq ft | 6 (2 x 3) |
| 25x40 | 1,000 sq ft | 4 (2 x 2) |
| 30x35 | 1,050 sq ft | 6 (3 x 2) |
| 30x36 | 1,080 sq ft | 6 (3 x 2) |
Areas computed from each stored size record; production zone counts computed with the same 12 by 16 foot planning module.
- 24x40 moves the count from 8 to 4 production zones (2 across by 2 deep), which is the reason to choose between them.
- 20x50 moves the count from 8 to 6 production zones (2 across by 3 deep), which is the reason to choose between them.
- 25x40 moves the count from 8 to 4 production zones (2 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 |
|---|---|---|---|---|
| 50x50 | +100 sq ft | +4.2% | 8 (4 x 2) | Same production zone count on this planning module; the difference is circulation and stored depth, not capacity. |
| 36x60 | −240 sq ft | −10% | 12 (3 x 4) | +4 production zones on the same planning module. |
| 30x70 | −300 sq ft | −12.5% | 8 (2 x 4) | Same production zone count on this planning module; the difference is circulation and stored depth, not capacity. |
| 30x100 | +600 sq ft | +25% | 10 (2 x 5) | +2 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 30x80 footprint as a restaurant building
FAQ
Questions about 30x80 restaurant building projects
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.
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 80 ft it takes 5 runs at 16 ft. That is 5 positions out of 2,400 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.
Length here buys 4 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.
From the equipment schedule and the intended output, with utility capacity for the site checked before the layout is fixed.
Dining area grows into the parcel with outdoor seating before the kitchen changes, because the kitchen is the expensive half Practically, the 80-foot dimension is the one that extends; the 30-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.
- Production zone fit: Counts, leftover strips and per-module areas are computed from the stored 30x80 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 80-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 30x80 restaurant building configurations
Review the allocation models for this footprint side by side, then estimate the configuration you intend to build.