What Is Included in a Pole Barn Kit? Complete Materials List
If you are researching pole barn kits, one of the first questions you will likely ask is: what is actually included in a pole barn kit package?
Understanding the materials included in a pole barn kit is important before starting a building project. Many property owners across Washington and the Pacific Northwest choose pole barn kits because they simplify the process of planning a shop, garage, agricultural building, or storage structure.
However, not all pole barn kits include the same components. Some material packages include everything needed for the structural shell of the building, while others may leave out critical elements like engineered plans or doors and windows. Knowing what should be included in a complete pole barn kit materials list helps avoid surprises when budgeting and planning a project.
This guide explains the typical pole barn kit components, how they work together in post frame construction, and what buyers should confirm before purchasing a kit.
What Is Included in a Pole Barn Kit - Columbia Structure
What Is a Pole Barn Kit?
A pole barn kit, sometimes called a post frame building kit, is a package of structural materials designed to build a post frame structure.
Post frame construction uses large structural posts instead of traditional stud walls to support the roof system. This allows the building to achieve large open interior spaces without interior load bearing walls.
Pole barn kits are commonly used to build:
• pole barn shops
• garages and workshops
• equipment storage buildings
• agricultural structures
• hobby or RV storage buildings
Instead of sourcing materials individually, the building materials are packaged together based on the design of the building.
Pole Barn Kit Materials List
A typical pole barn kit materials package usually includes the structural components required to build the frame and exterior shell of the building.
These materials typically include:
• structural posts
• engineered roof trusses
• wall girts
• roof purlins
• metal roofing panels
• metal siding panels
• fasteners and structural hardware
• fully engineered stamped building plans
Each component plays a specific role in the structure of the building.
Structural Posts
Structural posts are one of the defining features of pole barn construction. These large vertical posts form the main support system of the building and transfer the load of the structure into the ground or foundation system.
The posts are spaced along the perimeter of the building and support the roof trusses above them. Because pole barns rely on these posts instead of closely spaced studs, they allow for large open interior spaces that work well for shops, garages, and equipment storage buildings.
Posts are typically pressure treated for durability and long term performance.
Engineered Roof Trusses
Pole barn kits normally include engineered roof trusses designed specifically for the building.
Roof trusses span between the structural posts and support the roof system. They are engineered to handle structural loads such as snow, wind, and other environmental forces based on the building’s location.
Because these trusses are engineered, they allow pole barns to achieve wide clear spans without interior support walls.
Wall Girts
Wall girts are horizontal framing members installed between the vertical posts along the walls of the building.
Their primary function is to support the exterior wall panels, such as metal siding. Wall girts create the structural framework that the siding attaches to while also helping distribute wind loads across the wall system.
In simple terms, wall girts act like horizontal supports between the posts that hold the wall panels in place and help strengthen the overall wall structure.
Roof Purlins
Roof purlins are horizontal framing members installed across the top of the roof trusses.
Metal roofing panels attach directly to the purlins. The purlins also help distribute roof loads such as snow and wind across the truss system.
Together, roof trusses and purlins form the structural system that supports the roof panels.
Metal Roofing and Siding
Most pole barn kits include steel roofing and siding panels designed for post frame construction.
Metal panels are widely used because they are durable, resistant to weather, and require relatively little maintenance compared to many other siding materials.
These panels form the exterior shell of the building and help protect the structure from the elements.
Fasteners and Structural Hardware
Pole barn kits typically include the hardware required to assemble the building.
This can include structural fasteners, connection hardware, and specialized screws used to attach metal panels to the framing members.
Using the correct fasteners is important because the strength of a pole barn structure depends heavily on the connections between structural components.
Fully Engineered and Stamped Building Plans
One of the most important components that should be included in a pole barn kit is fully engineered and stamped building plans.
These plans are prepared by a structural engineer and are designed to meet the specific building requirements for the region where the building will be constructed.
Engineered stamped plans are often required for building permits and help ensure the structure meets local engineering standards for wind loads, snow loads, and structural integrity.
However, buyers should be aware that not every pole barn kit sold online includes engineered stamped plans.
Some suppliers sell material packages without full engineering. This can create major issues when applying for permits or when verifying that the building meets local structural requirements.
Before purchasing a pole barn kit, buyers should always confirm that engineered stamped plans are included and designed for their specific location.
Doors, Windows, and Man Doors
Another area where buyers should be cautious is understanding whether doors and windows are included in the pole barn kit price.
Many pole barn kit packages include the structural materials needed to build the building shell, but components such as:
• overhead garage doors
• windows
• entry doors (man doors)
are often not included in the base kit price.
Because doors and windows can significantly affect the total cost of the project, buyers should confirm whether these items are included when reviewing quotes.
In some cases they can be added during the quoting process. Some pre engineered building packages may include doors and windows as part of the building package, but this varies depending on the supplier.
Understanding this detail ahead of time can help prevent unexpected costs later in the project.
Why Understanding Pole Barn Kit Components Matters
Not all pole barn kits are the same. While most include the structural components needed to build the building shell, the exact materials and engineering services included in a kit can vary widely between suppliers.
Understanding the full pole barn kit materials list allows property owners to plan their project accurately, confirm that the building is properly engineered, and ensure that all major structural components are accounted for.
For property owners planning a shop, garage, or agricultural building, taking the time to understand what is included in a pole barn kit is an important step toward building a durable structure that will last for decades.
If you are researching pole barn kits in Washington or the Pacific Northwest, reviewing the materials included in the building package and confirming that the project includes engineered stamped plans designed for your region can help ensure a smoother building process.