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48x30x12/9 Seneca Barn

SKU: GB1823

48' W × 30' L × 12' H
Vertical Roof
1440 sq ft
Financing Available
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Starting at

$18,013*

Delivered & installed — final price varies by location.

*Accessories shown are not included in the base price

48' × 30' × 12'

1,440 sq ft · Vertical Roof

Free delivery & professional installation
20-year rust-through warranty
No credit check RTO available
18+ color options available
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Delivery, certifications & load requirements

This 48x30x12/9 Seneca Barn is designed for buyers who need a wide, multi-use metal barn with a tall center section and covered side bays. The building includes a 24x30 center section with two 12x30 lean-tos, giving you an overall footprint of approximately 48’ wide x 30’ long and 1,440 square feet of usable covered space.

The raised-center barn layout is ideal for separating storage by use. The taller center bay can support larger equipment, vehicles, tools, hay, feed, or work space, while the left and right lean-tos create enclosed side areas for mowers, ATVs, tractors, trailers, shop tools, farm supplies, and general storage. Each lean-to includes an 8x8 garage door on the front, plus a 36x80 walk-in door and 30x30 window on the side, giving both side bays practical access and natural light.

This Seneca Barn comes with a vertical roof, 14-gauge galvanized steel framing, and 140 MPH wind + 35 PSF snow certification, including the lean-tos. The Brown roof and trim paired with Beige walls gives the building a clean, classic barn-style appearance that works well for farms, rural properties, residential storage, hobby shops, and equipment-heavy spaces.

Garage Buildings helps buyers compare metal barns, garages, carports, RV covers, workshops, and storage buildings based on size, layout, local weather, storage needs, budget, and long-term use.Need a certified Seneca Barn with enclosed lean-tos, garage doors, walk-in access, and flexible storage space? Get your custom quote for this 48x30x12/9 Seneca Barn and compare size, color, door, window, and certification options before you buy. Call now.

Technical Details

Specifications

SKUGB1823
Area1,440 SQFT
Width48'
Height12'
Length30'
WindowsTwo 30x30 windows, one on each lean-to side
DeliveryFREE Delivery to Your Building Site
MaterialGalvanized steel
Warranty20-year rust-through warranty
Roof ColorBrown
Roof StyleVertical
Roof pitch3/12'
Trim ColorBrown
Wall ColorBeige
Frame Gauge14-gauge galvanized steel
Panel Gauge29-gauge steel panels
Peak Height15'
Roof Length31'
Wall PanelsHorizontal
Design NotesTall center bay, two enclosed 12x30 lean-tos, garage doors on both lean-to fronts, walk-in doors and windows on both lean-to sides, certified wind and snow package, good fit for farms and rural properties
Garage DoorsTwo 8x8 garage doors with 45° trim kits, one on each lean-to front
InstallationFREE Installation on Your Pad
Intended UseFarm storage, equipment storage, tractor storage, mower storage, tool storage, workshop space, ATV storage, trailer storage, rural garage, utility barn
Service AreaNationwide
Building TypeSeneca Barn / Raised Center Barn Layout
Certification140 MPH wind + 35 PSF snow certified
Top Use CasesAgricultural storage, side-bay equipment access, workshop use, mower storage, tractor storage, feed storage, tool storage, utility garage, farm supply storage, residential property storage
Walk-In DoorsTwo 36x80 walk-in doors, one on each lean-to side
2D Floor PlannerYes
Vehicle CapacityMixed-use layout for vehicles, equipment, mowers, ATVs, small tractors, and storage
Weather ResistanceBuilt to help protect vehicles, tools, tractors, mowers, trailers, feed, supplies, and stored items from sun, rain, wind, snow, debris, and daily outdoor exposure
Installation SurfaceConcrete
Customization OptionsGarage door size, walk-in doors, windows, colors, insulation, height changes, lean-to layout, roof upgrades, frame gauge upgrade, anchors, panel direction, and certified wind or snow options
Durability and StrengthBraces and anchors on every leg for longer stability
Left Lean-To & Right Lean-to12x30 lean-to with 9' height

Can't Find the Right Fit? Design Your 48x30x12/9 Seneca Barn in 3D

Customize your 48x30x12/9 Seneca Barn with different roof styles, colors, dimensions, garage doors, walk-in doors, windows, insulation, lean-tos, certification options, and other available upgrades.

Our free 3D Building Designer lets you personalize every detail, compare different layouts, and visualize your building before requesting a quote—helping you design the perfect structure for your property and needs.

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Got Questions? We've Got Answers

What is a 48x30x12/9 Seneca Barn?
A 48x30x12/9 Seneca Barn is a raised-center metal barn with a taller middle section and lower lean-tos attached on both sides. This layout gives buyers a wide building footprint with separated storage areas for vehicles, equipment, tools, farm supplies, and workshop use.
What does 48x30x12/9 mean?
The building has an approximate overall width of 48 feet, a length of 30 feet, a 12-foot center height, and 9-foot lean-to heights. The center section is 24x30, and each side lean-to is 12x30.
How much space does this Seneca Barn provide?
This building provides approximately 1,440 square feet of covered space. The center section offers about 720 square feet, and each 12x30 lean-to adds about 360 square feet.
What can this Seneca Barn be used for?
This barn can be used for farm storage, tractor storage, mower storage, ATV storage, trailer storage, tool storage, feed storage, workshop space, equipment storage, and general residential or rural property storage.
Is this building good for farm use?
Yes. The raised-center layout and enclosed lean-tos make it a strong fit for farms and rural properties. It gives you multiple storage zones for tractors, mowers, feed, tools, small equipment, and supplies.
Is this Seneca Barn certified?
Yes. This building is listed as 140 MPH wind + 35 PSF snow certified, including the lean-tos. Final certification needs can vary by ZIP code, local code, exposure, foundation, and installation site.
What does 140 MPH wind certification mean?
A 140 MPH wind certification means the building is designed for a planned wind rating of up to 140 MPH when installed according to the certified plans and anchoring requirements. Buyers should still confirm local code requirements before installation.
What does 35 PSF snow load mean?
A 35 PSF snow load means the building is designed to support a planned snow load of 35 pounds per square foot. This can be important in areas where snow-rated structures are required or recommended.
Why is a vertical roof useful on this barn?
A vertical roof helps rain, snow, leaves, and debris move off the roof more efficiently because the roof panels run from the peak down toward the sides. It is often recommended for larger buildings and certified structures.
Are the lean-tos enclosed?
Yes. The provided configuration includes closed lean-to ends and closed lean-to sides with horizontal panels. This gives the side bays better protection than open lean-tos.
Does this barn include garage doors?
Yes. The provided configuration lists two 8x8 garage doors with 45° trim kits, one on the front of each lean-to. Final door style, placement, color, and opener compatibility should be confirmed before purchase.
Does this barn include walk-in doors?
Yes. This building includes two 36x80 walk-in doors, one on the side of each lean-to. These doors give easy daily access without opening the garage doors.
Does this barn include windows?
Yes. This configuration includes two 30x30 windows, one on the side of each lean-to. Windows can help bring natural light into the side storage areas.
Is this building fully enclosed?
The lean-tos are enclosed on the ends and sides, and the center section has closed sides with certified gables on the ends. Buyers who need a fully enclosed center bay should confirm whether additional center end wall panels are needed before ordering.
Can this Seneca Barn be used as a workshop?
Yes. The wide layout, enclosed side sections, walk-in doors, windows, and garage door access make it useful for a workshop, tool room, repair area, or equipment maintenance space.
Can vehicles fit inside this building?
Yes. This building can be used for vehicles, mowers, ATVs, small tractors, trailers, and equipment. The two 8x8 garage doors are best suited for standard vehicles, mowers, ATVs, UTVs, and smaller equipment. Buyers with taller vehicles should confirm clearance before ordering.
What installation surface is listed for this building?
This Seneca Barn is listed for installation on concrete. The concrete surface should be level, square, and ready before installation. Site preparation and anchoring requirements should be confirmed before delivery.
Can insulation be added to this barn?
Yes. Insulation can usually be added as a customization option. It may be useful if the building will be used as a workshop, tool storage area, or space for temperature-sensitive items.
Can this Seneca Barn be customized?
Yes. Buyers can usually customize garage door sizes, walk-in doors, windows, colors, insulation, lean-to layout, height, roof style, frame gauge, anchors, panel direction, and certified wind or snow options.
What colors are included in this Seneca Barn?
This configuration includes a Brown roof, Brown trim, and Beige walls. Buyers can usually choose different color combinations to match their home, farm, shop, or property.
Do I need a permit for this barn?
Permit needs depend on your city, county, building size, foundation, use, and local code. Since this is a large certified barn, buyers should check with the local building office before installation.
Who should choose this 48x30x12/9 Seneca Barn?
This building is a good fit for farmers, rural homeowners, acreage owners, equipment owners, hobbyists, and buyers who need wide storage with separated side bays, garage door access, walk-in doors, windows, and certified wind and snow protection.

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