100×120 Metal Building Specs, Dimensions & Custom Options
Every 100×120 steel building we ship is engineered to the buyer’s site, county code, and use case. Here’s what the standard spec sheet covers before you start customizing in sensei3d.
| Building Footprint | 100′ Wide × 120′ Long Leg heights configurable from 12 ft to 24 ft for warehouse, hangar, and manufacturing clearances |
|---|---|
| Total Square Footage | 12,000 square feet of usable, column-free interior space at full clear span |
| Building Configurations | Single-bay clear span, multi-bay tenant divisions, lean-to additions, and rear-loading dock cutouts — each configuration custom-engineered to your county code |
| Enclosure Options | Fully enclosed (4 walls), partially enclosed for drive-through fabrication, or open-side equipment cover; side configurations specified per opening on each elevation |
| Roof Style Options | Regular Roof (rounded corners), A-Frame Horizontal (Boxed Eave), or Vertical Roof — Vertical is recommended at this footprint for snow shedding and rain runoff |
| Roof Pitch Options | Standard 3:12 pitch, with 4:12 and 5:12 pitch upgrades available for heavy-snow regions like NY, CO, MI, MN, and ME |
| Frame Gauge Options | 14-gauge galvanized steel tubing standard, 12-gauge upgrade available (33% thicker walls, longer warranty) — most 12,000 sq ft commercial kits ship in 12-gauge |
| Roof & Wall Panels | 29-gauge sheet metal standard, 26-gauge upgrade available; horizontal or vertical panel orientation specified per surface |
| Color Options | 17 standard colors for roof, walls, and trim — all powder-coated panels carry a 20-year fade resistance warranty |
| Door Options | Roll-up garage doors (8×8 through 14×14), commercial sectional doors, walk-in personnel doors (3×6, 3×7), sliding barn doors, and hydraulic one-piece options |
| Window Options | Single-hung 30×30 standard, custom storefront windows, skylights for natural daylighting, with screens and security bars optional |
| Insulation Options | R-13 vapor barrier, R-19 fiberglass batt, double-bubble radiant barrier, and insulated metal panels for cold storage applications |
| Anchoring Options | Concrete wedge anchors (most common at this size), asphalt anchors, mobile-home anchors, and ground rebar — selected based on installation surface |
| Installation Surface | Concrete – Asphalt – Ground – Gravel; engineered concrete slab is required for most commercial 100×120 builds with heavy interior loads |
| Certification & Permits | Stamped engineered drawings included on every certified build; wind, snow, and seismic load engineering provided per county code |
| Snow Load Rating | 30-65 PSF depending on configuration; certified engineering available for higher zones up to 90 PSF in Tornado Alley and northern snow belts |
| Wind Load Rating | 100-140 MPH depending on configuration; hurricane-rated certifications available for FL, TX, NC, SC, and Gulf coastal zones |
| Lead Time | 8-14 weeks from order confirmation to install for a 100×120 commercial kit; engineered/certified builds in heavy code regions trend toward the longer end |
| Delivery | Free delivery to all 48 continental US states; final-mile coordination and crane scheduling handled for remote industrial sites |
| Warranty | 20-year rust-through warranty on panels and frame; 1-year workmanship warranty on installation for tubular-frame kits |
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12 Popular 100×120 Metal Building Uses (12000 Sq Ft Layouts)
12,000 square feet is enough to run a regional distribution operation, park 20+ commercial vehicles, or floor a full production line with mezzanine offices. Below are the 12 ways developers, manufacturers, and logistics operators most often spec a 100×120 metal building.
100×120 Distribution Warehouse
Logistics operators spec this footprint for regional cross-dock and last-mile distribution. The 100-foot clear span fits two 12-bay racking aisles plus a turning lane for 53-foot trailers, and 24-foot eaves give you stack height for three pallets vertically. Add three dock-high roll-ups on the long wall for staged loading.
100×120 Manufacturing Facility
Manufacturers running CNC, metal fab, or assembly lines pick 100×120 to floor a full production cell with QC, packout, and shipping under one roof. The clear-span design means no interior columns interrupting overhead crane runways. Spec 12-gauge framing and 26-gauge walls for the heavier internal loads.
100×120 Commercial Workshop
Multi-tenant commercial real estate developers split this footprint into four 30×100 bays, each with its own roll-up and walk-in door. It’s a proven layout for leasing to auto repair, welding, woodworking, and small fab shops. Pre-frame the partitions in the 3D builder so you can drop steel-stud walls later.
100×120 Equipment & Hay Barn
Agricultural-industrial operators use this size to shelter combines, sprayers, and 1,000+ round bales in one structure. The 100-foot width clears two equipment lanes back-to-back, and an open gable end on the short wall lets you drive straight through. Add a 20×120 lean-to for tractors.
100×120 Aircraft Hangar
Private operators hangar light twins, turboprops, and small jets in this footprint. The 100-foot opening accommodates a King Air or Citation wingspan, and a hydraulic bifold door across the gable end gives you full clearance. Engineering for FAA wind exposure and tail clearance is built into the stamped drawings.
100×120 Cold Storage Facility
Food distributors and produce operators spec insulated metal panels (IMPs) on this footprint for refrigerated and freezer storage. The 12,000 sq ft floor splits into a 36°F cooler and a -10°F freezer with a shared loading vestibule. R-30+ panels and vapor-sealed seams are configured during the customize step.
100×120 Indoor Riding Arena
Equestrian operators choose 100×120 for a full dressage court (66’x132′ fits with safe wall clearance trimmed) or a barrel-racing pattern. The clear-span eliminates interior posts that spook horses, and 16-foot eaves give you working clearance for a mounted rider plus roof framing.
100×120 Retail & Showroom
Commercial real estate buyers building auto, RV, or boat showrooms use this size to display 30+ vehicles with a customer lounge and service write-up area. Storefront glazing across one long wall, two 14×14 roll-ups for vehicle moves, and wainscoting on the lower 4 feet give it curb appeal.
100×120 Truck & Fleet Service Center
Fleet operators spec 100×120 for a 6-bay heavy-duty service shop with pull-through bays for tractors and 53-foot trailers. The 100-foot length fits a tractor-trailer plus tool cabinets and a parts mezzanine. Spec 14×14 roll-ups on both long walls for true drive-through service.
100×120 Sports & Recreation Facility
Schools and parks departments build indoor practice facilities, batting cages, or pickleball courts at this footprint. 12,000 sq ft fits four full pickleball courts plus spectator seating, or a regulation basketball half-court with a turf practice area. 24-foot eaves clear lobbed shots and ceiling lighting.
100×120 Livestock & Dairy Building
Dairy operators and feedlot managers use 100×120 to house 80-120 head with feed alley, milking parlor, and a maternity pen under one roof. Open ridge venting and sidewall curtains are spec’d in the customize step, and concrete kneewalls with steel above protect the lower panels.
100×120 Self-Storage Facility
Self-storage developers carve this footprint into 60-80 climate-controlled units with a central drive aisle. Pre-framed openings on 10-foot centers along both long walls let you drop interior partitions per your unit mix. Lower eaves keep the heated/cooled volume manageable for HVAC.
Don’t see your exact use case? Our advisors will help configure your 100×120 for any application. Request a free quote.
What’s Included in a 100×120 Metal Building Kit?
Every 100×120 metal building kit ships with the structural package below as standard. Upgrades are configured separately in sensei3d before you lock your quote.
Free With Every 100×120 Order
Standard configuration items at no extra cost.
- Galvanized Steel Tubular Framing14-gauge G90 hot-dipped galvanized steel tubing as standard, manufactured to AISI S100 cold-formed steel design specifications and pre-cut to your 100×120 footprint.
- 29-Gauge Roof & Wall PanelsPowder-coated 29-gauge sheet metal panels in your choice of 17 standard colors, with a 20-year rust-through warranty on every panel face.
- Engineered Ridge Caps & TrimColor-matched ridge caps, eave trim, corner trim, gable trim, and rake trim cut to length for the 100-foot ridge run and 120-foot side walls.
- Concrete Wedge AnchorsAnchor bolts and concrete wedge anchors sized to your foundation plan, included with every concrete-mounted 100×120 commercial kit.
- Engineered DrawingsStamped engineered drawings showing column reactions, anchor bolt patterns, and load paths — required by most county permit offices for a 12,000 sq ft structure.
- Color-Coded FastenersSelf-drilling screws with neoprene washers in colors matched to your roof and wall panels, sized for 14-gauge or 12-gauge framing.
- Standard Eave & Gable FramingPre-cut eave struts, gable end framing, and ridge framing assembled per the engineered drawings — no field cutting required on the structural members.
- Free Delivery to 48 StatesFree curbside delivery anywhere in the continental US — quoted at the same price floor whether you build in Texas or Maine.
- Wind & Snow Load EngineeringStandard 100-140 MPH wind rating and 30-65 PSF snow rating engineered to ASCE 7-22 and your local code at no additional cost on the base kit.
- 20-Year Rust-Through WarrantySteel and Stud backs the panels and frame against rust-through for 20 years from the install date — the longest warranty class in the pre-engineered metal building industry.
- Project Manager AssignmentA dedicated project manager handles your build from deposit through install, coordinating engineering, permitting handoffs, and the install crew on a 100×120 schedule.
- Free Professional InstallationFree professional installation on tubular-frame buildings across most of the continental US — included in the price floor on standard 100×120 configurations.
+ Popular 100×120 Building Upgrades
Common add-ons buyers select on this footprint.
- 12-Gauge Frame UpgradeUpgrade from 14-gauge to 12-gauge tubular framing for 33% thicker steel walls — most commercial 100×120 kits in high-wind or snow zones ship with this upgrade.
- 26-Gauge Panel UpgradeHeavier 26-gauge sheet metal panels resist hail, coastal salt corrosion, and panel oil-canning better than 29-gauge — common upgrade for FL, TX, and Gulf builds.
- Insulated Metal Panels (IMPs)R-30+ insulated metal panels for cold storage, climate-controlled warehouses, and conditioned manufacturing space — installed in place of standard wall panels.
- Hydraulic & Bifold DoorsHydraulic one-piece doors and bifold doors for hangars and large equipment access — sized to span up to 100 feet on the gable end.
- Commercial Roll-Up DoorsWayne Dalton-style commercial sectional and roll-up doors in sizes from 12×12 up to 14×14, with chain hoist or motorized operators.
- Storefront Windows & SkylightsAluminum-frame storefront window walls, single-hung 30×30 windows, and translucent roof skylights for natural daylighting in showrooms and shop floors.
- Mezzanine Floor SystemsEngineered steel mezzanines for office, parts storage, or QC labs — typically 30×40 or 40×60 partial floors above the primary work area.
- Lean-To Additions1, 2, or 3-side lean-tos extending the roofline 12-20 feet beyond the main 100×120 footprint — common for equipment overhangs and outdoor staging.
- Wainscoting (Two-Tone Walls)Lower 3 to 4 feet of wall in a contrasting color or heavier gauge — adds curb appeal on showrooms and impact resistance on livestock buildings.
- Hurricane & Heavy-Snow CertificationUpgraded engineering to 170+ MPH wind ratings for FEMA wind zones and 90+ PSF snow loads for the northern snow belt — stamped to county code.
- Solar-Ready Roof FramingReinforced roof purlins engineered for rooftop solar arrays, satellite dishes, and HVAC condensers — spec’d during the customize step in sensei3d.
Customize & Build Your 100×120 Metal Building Online
Every spec on a 100×120 metal building is buyer-controlled. Open the sensei3d 3D building configurator to design your build surface by surface, save the spec, and submit for a 24-hour custom quote.
Leg Height (12′ to 24′)
Most 100×120 commercial kits land at 18-24 feet of clear height — 18′ for general warehousing, 22-24′ for stack-three-pallet racking and overhead crane runways. Lower eaves work for self-storage and.
3 Roof Styles
Vertical Roof is the recommended spec at 100×120 because the vertical panel ribs shed rain and snow off the 100-foot ridge run. A-Frame Horizontal works in dry climates; Regular Roof.
Roof Pitch & Slope
Standard 3:12 pitch handles most US climates. Upgrade to 4:12 or 5:12 for the northern snow belt (NY, CO, MI, MN, ME) — steeper pitch sheds load faster and lowers.
Frame Gauge (14 or 12)
14-gauge is standard, but at 12,000 sq ft most commercial buyers upgrade to 12-gauge for the longer warranty and the 33% thicker tubing. Mandatory in high-wind FEMA zones and Tornado.
Sheet Metal Gauge (29 or 26)
29-gauge ships standard. Upgrade to 26-gauge for hail-prone Plains states, Gulf Coast salt exposure, and any 100×120 build where you want the longer paint life and reduced oil-canning on flat.
Certification & Engineering
Every certified 100×120 build ships with stamped engineered drawings, anchor bolt patterns, foundation reactions, and ASCE 7-22 wind/snow calculations sized to your county code and AISI S100 specifications.
Roll-Up Garage Doors
Common door sizes for 100×120 are 12×12 and 14×14 commercial roll-ups, often three or four placed along the long wall for dock-style loading. Chain hoist standard, motorized opener upgrade available.
Walk-In Doors
36-inch insulated walk-in personnel doors with full steel frames, weatherstripping, and commercial locksets. Most 100×120 builds spec 2-4 walk-ins for OSHA egress compliance on a 12,000 sq ft floor.
Hydraulic & Rapid Doors
Hydraulic one-piece doors span up to 100 feet on the gable end for hangars and equipment access. High-speed rapid-roll doors are spec’d for cold storage and high-traffic distribution dock openings.
Windows & Skylights
Single-hung 30×30 windows are standard; storefront window walls and translucent roof skylights add daylighting on showroom and shop-floor builds. Security bars and screens are optional add-ons.
Framed Openings
Pre-frame openings during the configure step for future doors, HVAC penetrations, or expansion connections — saves cutting structural panels later when you add equipment or split the building into tenant.
Garage Door Openers & Windows
Chain-drive, belt-drive, and Wi-Fi smart openers available for every roll-up door. Window kits with safety glazing add daylight to roll-up doors without compromising the wind rating.
17 Standard Color Options
Pick from Barn Red, Beige, Black, Brown, Burgundy, Burnished Slate, Clay, Galvalume, Green, Patriot Red, Pewter Gray, Quaker Gray, Rawhide Tan, Royal Blue, Sandstone, Slate Blue, and White — all.
Mix-and-Match Roof, Walls, Trim
Spec different colors on each surface — White walls with Burnished Slate roof and Black trim is a popular commercial combo. Pewter Gray with Patriot Red trim is common on.
Wainscoting (Two-Tone Walls)
Lower 3 or 4 feet of wall in a contrasting color or heavier gauge — adds curb appeal on retail and showroom builds, and impact resistance on livestock and warehouse.
Galvalume (Bare Metal Finish)
Hot-dipped aluminum-zinc Galvalume finish on roof or walls is the cost-effective choice for industrial and agricultural builds. Resists corrosion better than painted G90 in coastal and high-humidity zones.
Painted Trim & Flashings
Color-matched ridge caps, eave trim, corner trim, gable trim, and rake trim ship with every 100×120 kit. Color-coded screws blend with the panel face for a clean finished look.
Custom Color Match
Match an existing on-site building, corporate brand standards, or HOA-required palette with custom paint matching. Sample chips available on request; custom-color upcharge applies and adds 1-2 weeks to lead time.
Insulation Options
R-13 vapor barrier handles condensation control on agricultural builds. R-19 fiberglass batt is standard for conditioned warehouses.
Lean-To Additions
Add 12 to 20-foot lean-tos along one, two, or three sides for tractor sheds, fuel islands, equipment overhangs, or outdoor staging. Engineered as part of the primary 100×120 frame, not.
Mezzanines & Lofts
Engineered steel mezzanines for office, parts storage, or QC labs — typically 30×40 or 40×60 partial floors. Common in commercial workshops, distribution centers, and manufacturing facilities at this scale.
Interior Partitions
Divide the 12,000 sq ft floor into bays, offices, restrooms, and storage with steel-stud partitions or insulated metal panels. Pre-frame the partition openings during the configure step.
Trim, Anchors, Gables
Decorative gable accents, contrasting trim runs, and architectural anchors give an industrial 100×120 a finished commercial-real-estate look — common on retail and showroom builds with street-facing elevations.
Flooring Prep
A 12,000 sq ft engineered concrete slab typically runs 6 inches thick with #4 rebar on 12-inch centers for commercial loads. Cold storage and crane-runway builds may require thicker slabs.
Wind & Snow Certification
Standard 115 MPH/35 PSF baseline; upgrades to 170+ MPH for FEMA hurricane zones and 90+ PSF for the northern snow belt. Engineered to ASCE 7-22 and stamped per county code.
Permit-Ready Drawings
Every certified 100×120 ships with stamped engineered drawings compliant with International Building Code (IBC), International Residential Code (IRC), NEC, IFGC, IECC, and IMC requirements.
Door Locks & Access Control
Commercial deadbolts, keypad entry, smart Wi-Fi locks, and Knox-box rapid-entry boxes for fire department access. Slide bolts and padlocks standard on roll-up doors.
Fire Safety & Alarms
Smoke and heat detectors, ABC extinguishers, exit signage, and sprinkler-ready roof framing for commercial occupancies. Coordinate with local fire marshal during permitting on a 12,000 sq ft floor.
Anchoring System
Concrete wedge anchors are standard on 100×120 commercial slabs. Asphalt, mobile-home, and auger ground anchors available for agricultural and rural sites — included with every build.
Solar & Roof-Top Loads
Reinforced roof purlins engineered for solar arrays (12,000 sq ft of roof can host 200kW+), HVAC condensers, satellite dishes, and rooftop equipment platforms — spec’d in sensei3d.
100x120 Metal Building Codes, Permits & Engineering
Permits for a 100x120 metal building are required in nearly every US jurisdiction because the 12,000 sq ft footprint exceeds the agricultural exemption threshold in most counties. Stamped engineered drawings ship with every certified build to satisfy code review.
We also adhere to plumbing codes, energy conservation standards, and any state or local requirements. Our team handles code compliance so you have total peace of mind.
How to Maintain a 100x120 Metal Building
A 100x120 metal building needs only light routine maintenance to hit its 20-year rust-through warranty. Plan for a structured inspection cadence given the surface area involved.
What Can You Do with 12000 Square Feet?
12,000 square feet is hard to picture in the abstract. Here's what actually fits inside a 100x120 metal building based on real Steel and Stud project layouts.

20-24 commercial vehicle stalls with
20-24 commercial vehicle stalls with a center drive aisle — fits a small fleet operation with room for tool cabinets and a parts mezzanine.

Two 12-bay pallet racking aisles
Two 12-bay pallet racking aisles plus a 53-foot trailer turning lane and three dock-high loading positions on the long wall.

Four 30x100 tenant bays for
Four 30x100 tenant bays for multi-tenant commercial real estate, each with its own roll-up door, walk-in, and 3,000 sq ft of leasable floor.

A full pickleball complex with
A full pickleball complex with four regulation 20x44 courts plus 20-foot side margins and spectator seating along one long wall.

An indoor riding arena with
An indoor riding arena with a 80x130 sand footing area plus a 20x100 viewing lounge and tack room along the gable end.

A regional cross-dock with 36
A regional cross-dock with 36 dock doors arranged 18 per long wall, plus an office mezzanine on the gable end.

A King Air or Citation
A King Air or Citation hangar with 100-foot bifold door, 24-foot clear ceiling, and a 20x40 office and parts area on one corner.

A 6-bay heavy-duty truck shop
A 6-bay heavy-duty truck shop with 14x14 pull-through bays, parts mezzanine, and write-up office at the front gable.
3 Ways to Order Your 100x120 Metal Building
Customize your 100x120 steel building in our free 3D builder, request a free custom quote, or talk directly with a building expert. Reservation deposit typically 10% to 30% based on your state and manufacturer.
Request Free 100x120 Quote
Free custom design, reply within 24 hours
Best path for industrial buyers and developers who already know the use case and want a stamped quote fast. Submit your dimensions, location, and rough spec, and a Steel and Stud project manager will return a custom 24-hour quote with engineering options, lead time, and free delivery confirmed.
- 24-hour custom quote turnaround
- Free delivery to 48 continental US states
- Stamped engineered drawings included
- Free professional installation on tubular frames
- Reservation deposit holds your build slot
Free quote. Flexible 10-30% deposit reserves your slot after approval.
Build Your 100x120 in 3D
Design your 100x120 yourself in our free 3D builder
Best path for buyers who want to see the build before committing. sensei3d (the 3D building configurator) lets you spec roof style, eave height, doors, colors, and add-ons surface by surface, save the model, and submit it for a 24-hour stamped quote — no payment required to design.
- Free 3D builder, no signup wall
- Save and share your spec instantly
- Submit for a 24-hour custom quote
- See the build before you commit
- Pricing locked at quote review
Customize My 100x120 Building →
Free tool. Flexible deposit reserves your build after quote approval.
Talk to a 100x120 Building Expert
Fastest answers, call or chat now
Best path for commercial buyers with code, certification, or financing questions a form can't answer. Steel and Stud project managers handle 100x120 commercial kits daily and can walk you through eave height, gauge, foundation, and lead time on a single call.
- Speak with a real project manager
- 20+ years of metal-building expertise
- Custom-engineered to your county code
- Financing and rent-to-own options on call
- Toll-free across 48 continental states
Toll-free. Speak with a 100x120 expert now.
How the 3D Builder Works
sensei3d (the 3D building configurator) is the fastest way to lock a 100x120 spec — design your build, save the model, and submit for a 24-hour custom quote.

Pick Your Size
Start with the 100x120 footprint preloaded — the builder anchors all defaults to 12,000 sq ft.

Choose Roof Style
Pick Vertical Roof (recommended at this size), A-Frame Horizontal, or Regular Roof, then set your pitch.

Add Doors, Windows, Colors
Drop in roll-ups, walk-ins, windows, skylights, wainscoting, and pick from 17 standard colors per surface.

Get Your Quote
Save the spec and submit for a stamped 24-hour custom quote — no payment required to design.
Ready to design your custom 100x120 metal building in 3D?
Customize My 100x120 in sensei3d →
Tip: Open sensei3d in a new tab so you can keep this page open for spec and certification reference. No deposit until you approve the final spec.
How Much Does a 100x120 Metal Building Cost?
A 100x120 metal building kit costs $219,650 – $279,550 fully installed on standard configurations, depending on roof style, frame gauge, and certification level. That price includes free delivery to 48 states and free professional installation on tubular-frame builds — what it does not include is your concrete foundation, county permit fees, or site grading.
Your Location
Delivery is free to all 48 continental states, but county code drives engineering cost. Hurricane and heavy-snow zones add 10-20% to the base 100x120 price.
Steel Gauge
14-gauge framing is standard; the 12-gauge upgrade adds roughly 12-18% but is mandatory in most high-wind FEMA zones and Tornado Alley counties.
Roof & Layout
Vertical Roof adds slightly over A-Frame Horizontal but is the recommended spec at 12,000 sq ft. Steeper pitch upgrades for snow regions add 4-8%.
Certification
Stamped engineered drawings are included on certified builds. Hurricane (170+ MPH) and heavy-snow (90+ PSF) certifications add to engineering scope and lead time.
Doors & Access
Each commercial 14x14 roll-up runs $2,500-$4,500 installed. Hydraulic bifold hangar doors and high-speed rapid-roll doors add the most cost on this footprint.
Site Conditions
Concrete slab cost is the largest variable buyers underestimate — a 12,000 sq ft engineered slab typically runs $48,000-$96,000 on top of the kit price, before the steel ships.
100x120 Metal Building Complete Price Range
Commercial Building, 12,000 sqft @ ~$20.8/sqft, ±12% range for options. Excludes sales tax, shipping, site prep, concrete slab, permits, and install add-ons.
Flexible Financing & Rent-To-Own
Choose the payment path that fits your project and budget
Traditional Financing
Credit Check Required
- Loans available on 100x120 commercial kits
- Competitive rates from partner lenders
- Flexible repayment up to 84 months
- Simple online application
- Ownership from day one
Rent-To-Own (RTO)
No Credit Check
- No credit check required
- Fast approval, often same day
- Low upfront down payment
- Affordable monthly payments
- Own at end of term
How Delivery & Installation Works
Here's what happens after you lock your 100x120 deposit.

Place Your Order
Sign the quote, place a 10-30% reservation deposit, and your build enters the production queue.
Step 1

Production
Steel is cut, formed, and powder-coated to your spec over a 6-10 week production window.
Step 2

Prepare the Site
Pour the engineered concrete slab and clear access for delivery trucks and the install crew.
Step 3

Installation
Free professional install on tubular-frame builds — most 100x120 kits go up in 7-14 days.
Step 4
100x120 Metal Building Reviews from Verified Buyers
Real feedback from verified 100x120 owners.
We needed a regional cross-dock fast and Steel and Stud delivered. The 12-gauge framing handled the West Texas wind rating, and the stamped drawings cleared county permit on the first review. Up and operational in under five months from deposit.
100-foot clear span was non-negotiable for a riding arena and the Steel and Stud team engineered the snow load to 70 PSF for our zone. Free delivery saved us thousands on a build this size, and the install crew finished in nine days.
Hurricane certification and a 100-foot bifold door are not easy to spec. The 3D builder let me see the hangar before I committed, and the 24-hour quote came back stamped and ready. Worth every dollar to skip the sticker shock from local steel fabricators.
Compare 100x120 vs. Other Metal Building Sizes
Buyers comparing 100x120 against neighboring sizes usually want to know whether the extra footprint earns its keep. Compared to a 100x110, a 100x120 adds 1,000 sq ft of clear-span floor for roughly 8-10% more on the kit price — almost always cheaper per square foot than expanding later.
| Feature | 100x110 Building | 100x120 Building | 100x150 Building | 120x100 Building |
|---|---|---|---|---|
| Square Footage | 11,000 sq ft | 12,000 sq ft | 15,000 sq ft | 12,000 sq ft |
| Use Capacity | 18-20 vehicle stalls | 20-24 vehicle stalls | 30+ vehicle stalls | 20-24 vehicle stalls |
| Access Potential | 2-3 dock doors | 3-4 dock doors | 5-6 dock doors | 3-4 dock doors |
| Roof Style | Vertical recommended | Vertical recommended | Vertical required | Vertical recommended |
| Best For | Mid-size warehouse | Regional distribution | Full manufacturing | Rotated layout |
| View 100x110 | You're Here | View 100x150 | View 120x100 |
100x120 Metal Building FAQ: Cost, Permits, Sizes & Install
Quick answers to the most-asked 100x120 buyer questions.