830 20x40x12 slate pole barn garage with white trim and an open eave door opening on the long wall

830 (20’Wx40’Lx12’H)

830 20x40x12 Detached Garage


The buyers who put a tall door on one end and a standard door on the side have thought about traffic before they thought about size. That is what the buyer of the 830 20x40x12 speaks to. This pole barn garage suits a New Jersey owner who wants a detached garage that takes a tall vehicle through one opening and everyday vehicles through another, without building a bigger footprint than the lot allows. It rewards owners who talk through both openings with NJ garage builders before the plans are drawn.

Searching for pole barn builders near me? You’ve just found the best. Pioneer Pole Buildings is the trusted name in post-frame construction across the Mid-Atlantic. Our team delivers high-quality craftsmanship, tailored customization, and dependable service on every project.


Why Choose Pioneer?


Pole Buildings, such as the one you’re looking at, provide exceptional versatility and value. Here’s why this structure stands out for homeowners in the Mid-Atlantic:

  • Cost-Effective Construction: Post-frame buildings require fewer materials than traditional methods, lowering costs while still maintaining strong structural integrity.
  • Quick Installation: With Pioneer’s streamlined process, your garage can be completed in weeks, not months.
  • Durability for Weather: The 28-gauge Frontier Panel siding and roof, backed by a 50-year warranty, stand strong against snow, wind, and rain.
  • Flexible Interior Layout: From parking to a home workshop, the ceiling height and open floor plan adapt to your needs.
  • Low Maintenance: Metal materials require minimal upkeep, saving you time and money in the long term.

Looking to personalize your structure? We make it easy to explore a wide range of Options and Customizations, including 18 Color Selections, premium upgrades, and add-ons that reflect your goals.


Explore Building 830 20x40x12 Pole Barn Garage


Look at how the openings are placed in the 830 20x40x12 photos. The big opening sits on the gable end and a second one sits on the long wall, so a pole barn garage this narrow still gets two ways in. The entry door and two windows sit on that same long wall, which keeps the gable end open for the tallest vehicle and the long wall for daily traffic.

Slate siding against white trim also teaches something about light. In the sun, the slate reads blue-gray, and in shade it reads closer to green-gray, so a color chosen from a small sample can change across a wall. These photos were taken before the concrete floor and insulated garage doors went in, so the open bays and bare ground are expected, which helps when comparing NJ garage builders on a 20×40 pole barn.

Whether you’re planning a personal garage, backyard workshop, or something more specialized, this Pole Post Frame Building offers a smart foundation for inspiration. You can also explore even more real builds in our full Project Gallery to see what’s possible with Pioneer.


Personalize your 20×40 Pole Barn


At Pioneer, customization is at the heart of every project. This Pole Barn Build offers a strong foundation, but you can make it your own with a range of options:

  • Color Choices: Select from 18 Colors for siding, roofing, and trim that complement the aesthetic of your home or property.
  • Door Upgrades: Add larger overhead doors, glass panels, or automatic openers with smart home compatibility for convenience.
  • Insulation Packages: Upgrade to premium insulation for year-round comfort, ideal for workshops or climate-controlled storage.
  • Interior Features: Incorporate shelving, lofts, or partition walls to maximize usability and functionality.
  • Exterior Add-Ons: Add skylights, cupolas, or extended overhangs for enhanced style and functionality.

Visit our Building Visualizer page to design your own Post Frame Building that perfectly fits your vision and needs.


Building Specifications


The poles carry this building, so they set the first decision. On 830 20x40x12, the 4×6 poles are treated to .23 with Micronized Copper Azole (MCA) and set 8 feet on center, opening to 10 feet on the gable ends where allowed. The building measures 20 Feet Wide x 40 Feet Long x 12 Feet 4 Inches High, or 800 square feet. Standard 20-foot trusses sit 4 feet on center under a 4/12 gable roof, sized for snow load by code and design, with 28-gauge Frontier Panel roofing in black and 1 inch of roof insulation, all documented in Engineered Sealed Blueprints.

The walls use 28-gauge Frontier Panel siding in slate with 1 inch of wall insulation, white trim, and a 2×6 .60 treated skirtboard with barrier tape. Two insulated garage doors handle the traffic: an 8-foot by 8-foot hi-lift on the eave and a 10-foot by 11-foot with 12-inch low headroom on the gable, each with windows in the fourth panel from the bottom. A 3068 fiberglass entry door, two 3-foot by 4-foot insulated windows, a 40-foot ridge vent, and a 4-inch, 4000 PSI concrete floor complete it.

Project Details:

  • Project ID: 830
  • Location: New Jersey
  • Dimensions: 20’W x 40’L x 12’4″H
  • Type: Garage

Building Colors:

  • Roof Color: Black
  • Siding Color: Slate
  • Trim Color: White
  • Man Door Color: Primed White
  • Window Color: White
  • Soffit Color: White
  • Overhead Door Color: White
Construction Features:
  • Siding: 28-gauge Frontier Panel (50-Year Warranty)
  • Roofing: 28-gauge Frontier Panel (50-Year Warranty)
  • Poles: 4×6 poles, .23 MCA treated, poles 8′ on center in all areas except where 10′ is allowable on gable ends
  • Trusses: 20′ Standard Trusses, 4′ on center, 4/12 pitch, snow load by code and design
  • Wall: 1″ Wall Insulation
  • Roof: 1″ Roof Insulation
Openings & Access:
  • ( 1 ) 8’W x 8’H Residential Classic Raised Short Panel Insulated
    • Hi-Lift
    • Placement: eave
    • Lights: 4
    • Color: White
  • ( 1 ) 10’W x 11’H Residential Premium Raised Short Panel Insulated
    • 12″ low headroom
    • Placement: gable
    • Lights: 5
    • Color: White
  • ( 1 ) Entry Door 3068 in, swing 9-lite RH, fiberglass, insulated, primed
  • ( 2 ) Window 3W 4H Single Hung Insulated White with Grids & Screen
Overhang Details:
  • Eaves 1: OH 1′
  • Eaves 2: OH 1′
  • Gables 1: OH 1′
  • Gables 2: OH 1′
  • Soffit Material: Vinyl
Additional Features:
  • 40 ft, Universal Ridge Vent
  • 2 x 6 Skirtboard .60 Treated with barrier tape
  • Engineered Sealed Blueprints
  • Windows in the OHD’s to be the 4th panel from the bottom
  • 4” Concrete floor, expansion joints, fiber mesh, 4000 PSI.

Types of Buildings We Construct


Inspired by this build? Pioneer specializes in post-frame construction for nearly every application:

  • Agricultural Pole Barns: Designed for livestock, equipment, and storage
  • Residential Pole Garages: Like this featured build, perfect for everyday use
  • Commercial Pole Buildings: Scalable layouts for growing businesses
  • Event Barns & Pavilions: Seasonal venues for weddings or gatherings
  • Recreational Buildings: Cabins, gyms, and creative hobby spaces
  • Equestrian Barns: Functional, horse-ready layouts
  • Specialty Pole Barns: One-of-a-kind designs built to fit your property
  • Barndominiums: Rustic-meets-modern homes with efficient layouts

We proudly serve customers throughout Pennsylvania, New Jersey, New York, Delaware, Maryland, West Virginia, and Virginia, providing reliable, locally tailored service from the ground up.


Frequently Asked Questions


How big is a 20×40 pole barn?

A 20×40 pole barn covers 800 square feet. That is room for a detached garage with two ways in: an 8-foot by 8-foot eave door and a 10-foot by 11-foot gable door.

Why isn’t there a price listed here?

Every pole barn garage is priced off its actual specs, not a catalog number. On 830 20x40x12, the two insulated garage doors, the 1-inch wall and roof insulation, and the concrete floor each move the quote.

How tall is the big garage door?

The gable door is 10 feet wide by 11 feet tall with 12-inch low headroom, so it fits under the 12-foot 4-inch wall. The eave door is 8 feet by 8 feet with hi-lift track.

Does Pioneer build in New Jersey?

Yes. Pioneer is one of the NJ garage builders serving the state from our Pennsylvania headquarters, along with six other Mid-Atlantic states, seven in total. We’ve completed 30,000+ post-frame buildings since 1998.


Pricing & Financing Options


The two doors move the quote on 830 20x40x12 more than the footprint does. Both are insulated garage doors, and the 10 foot by 11 foot gable door with 12 inch low headroom is priced differently than the 8 foot by 8 foot hi-lift door on the eave. Windows in the fourth panel of each door add cost, and 1 inch of insulation in both the walls and the roof adds material that a bare shell would not carry. The 4-inch, 4000 PSI concrete floor is priced by slab area.

Before requesting a quote, decide how tall the big door needs to be and where each opening should sit. Those answers tell NJ garage builders what to price on a 20×40 pole barn. Pioneer quotes each detached garage from its real specs, so send your vehicle heights, site layout, and permit requirements, and the number comes back accurate.

We also offer flexible Financing Options so you can get started without compromising on design or quality.

Call us at 1-888-448-2505 Ext. 136 or Request Your Free Quote today to take the next step.


Connect With Us


Follow Pioneer Pole Buildings on Instagram, Facebook, and LinkedIn to see more featured builds like this one, get inspired by real projects, and learn from our expert tips and behind-the-scenes content. Whether you’re a homeowner, builder, or curious observer, our growing digital showcase has something for everyone.


Final Thought


Choose the door height before the wall height. On this pole barn garage, an 11-foot door has to fit under a 12-foot-4-inch wall, so the build uses 12-inch low headroom instead of raising the whole building. That is a trade-off most buyers never consider: the door sets the clearance, and the wall follows it.

That decision changes what Pioneer engineers. A wide, tall opening on the gable end affects the header and the pole spacing there, which is why the poles open to 10 feet on the gable ends only where it is allowed, and why Engineered Sealed Blueprints document the layout before the insulated garage doors are ordered.

Pioneer has completed 30,000+ post-frame buildings since 1998 across seven states. If you are comparing NJ garage builders for a detached garage, bring your tallest vehicle and your door plans to the first call, and the plan for 830 20x40x12 can be adapted around them.

Ready to get started? Explore our full range of options and Request Your Free Quote. We’re here to build what matters most to you.

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