December to Remember Sale

December to Remember Sale

Prices are subject to change based on area of installation and manufacturer

Best Seller

Seneca Barn

  • 42x21 Seneca Style Barn (Sloped roof metal storage unit)
All our buildings are fully-customized to your preferences. Let our experts help you with your building by requesting a quote.

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Lower prices may be available*


*prices may change depending on location and manufacturer


42 ft


21 ft


12 ft

Roof Style

Boxed Eave

Roof Color


Roof Trim


Roof Trim Color




Color Options


Our Seneca Style Barns do not only offer unique and beautiful aesthetics but are also incredibly strong. Traditional pole barns are very susceptible to moisture damage, termite attacks as well as fire hazards. That is why the pole barns need frequent repainting and maintenance efforts.

However, metal Seneca barn kits, on the other hand, can last for a number of years, even with the least of maintenance. The featured metal barn comes with a total dimension of 42'W x 21'L x 12'H and usable floor area of more than 800 sq. ft.

This metal barn is partially enclosed to keep out the elements, and hence, protect your livestock and belongings, at the same time being easily accessible.

Features of 42 x 21 Seneca Style Barn Storage Buildings

Seneca metal barn kits come with an A-framed roof structure. Also, the structure has a boxed eave roof style and horizontal roof panels, vertical roofs being provided as an option.

The 18' wide main section of this barn is fully enclosed on the sides with horizontal metal barn siding. The same goes with the ends. Two beautiful Dutch-style frame-outs with 45 deg angle cuts are provided at either end of this section.

Meanwhile, the two 12' lean-tos attached to the main section is only partially enclosed. The front and back ends of these lean-tos are gabled. Also, the sides are enclosed with a single horizontal metal barn siding or panel.

The partial coverage of this metal barn combined with the boxed eave roof style makes this structure perfect for areas with moderate weather. Additionally, this metal barn is also certified to withstand weather loads up to 140 MPH/30 PSF.

However, these features are not rigid. You can customize these features until you get a product that fully addresses all your storage needs.

For example, you can choose to fully enclose this metal barn with horizontal/vertical panels. Alongside, we also offer extra metal barn doors, walk-in doors, and windows to enclose the structure.


Option/Upgrade Available For all ENDs and SIDEs.

  • Vertical siding
  • Certified/non-certified gables
  • Fully enclosed in vertical/horizontal siding
  • Walk-in doors
  • Garage doors
  • Frameouts
  • Windows
  • Certification (for main section/lean-to's)
  • Colors (free)
  • Wainscot (available in vertical/horizontal orientation)
  • 12 gauge steel
  • Colored screws
  • Insulation
  • 45-degree angles on frameouts

Limited Warranty and Service

This building (14 Gauge) has 30-day material and workmanship warranty with 20-year limited rust through warranty on the Tubular Frame. Also, Optional 12 Gauge has 20-year rust though warranty on the frame. Warranties can vary based on manufacturer.
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Free Delivery and Installation

Free Delivery and Installation on this building. Please go through the documentation to learn more about our free delivery and installation. Lead time may vary depending upon your installation location.
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