How To Build A Single Slope Pole Barn

You might be planning to build a barn in your area. But how could you build a single-pole barn? What do you need to prepare? Keep calm! We did comprehensive research to answer these questions.

Building a single-slope pole barn requires time, effort, and professional guidance. It's important to be familiar with all the steps, from assessing the area to using what you've built. Refer to the steps below:

  1. Evaluate the area.
  2. Plan the structure.
  3. Prepare the materials.
  4. Prepare the ground
  5. Build the barn.
  6. Finish the structure.
  7. Organize the barn.

This article aims to guide you through building a single-pole barn. You'll learn the detailed steps and what are factors to consider. We have so much more to discover in this article. So, continue reading!

karwendel mountains in austria with single sloped barn, How To Build A Single Slope Pole Barn

How to Build a Single-Slope Pole Barn

A single-slope barn is an economical structure that has a roof sloping in one direction. A barn is usually a place for storing agricultural products such as fruits, vegetables, hay, and livestock.

Female farmer working with horses. Rancher working on a Canadian ranch. Empowered woman working in agriculture

See this image below for what a single-slope barn looks like:

Keep in mind that building a barn is like building a small house with fewer utilities. It's best to consult a professional to help you plan this project before you proceed with these basic steps:

1. Evaluate the Area

It's important to evaluate the area with the help of local authorities. They may require you to obtain a permit to build the barn, depending on where you live. They can tell you if the area is safe. There might be drainpipes or water supplies beneath the soil. You also don't want to build on soft, unstable soil that is prone to erosion.

2. Plan the Structure

a young woman using a digital tablet while working at a cow farm

Aside from the basic foundation, plan how you would like the barn to be. Do you want to fill it with livestock? Do you prefer to have a gate or keep the space open? What are the things you'll put inside? These questions will help you decide what your barn will look like.

For instance, you want a space for one horse and another space for the hay. You'll also want a sink to access water easily. Then you prefer a half gate to see the horse as well as protect some farming tools inside.

If your barn will look like the given example, you need to merge walls to make a room for the horse. There should be a wall between the horse and the hay. You should also sketch the water supply and drainage for the sink. And you need some posts to support the gate.

It's crucial to plan the structure so that you'll minimize renovating the barn once it's built.

3. Prepare the Materials

Before you build the posts and walls, it's important to figure out the materials you'll need throughout the project, most of which are available from local construction suppliers. The list may change depending on the evaluation of the area. Refer to the sizes and quantities based on the structure plan.

  • Lumber wood
  • Nail gun and nails
  • Sand or gravel
  • Concrete mixture
  • Rebar
  • Steel plates
  • Plywood
  • Roofing felt
  • Metal roof

4. Prepare the Ground

The ground should be clear, dry, and in good condition. You should remove any obstructions like trees, rocks, or other things within the area.

You can use sand or gravel as a filler in the area so that the poles will be stable. Do not use hard rocks, shale, or debris as a filler. They are too hard to stabilize underneath the poles.

It's best to leave the excavation task to the professionals who can do the following:

  • Excavate the ground 6–12 inches deep. You may need to rent a backhoe, bulldozer, or excavator.
  • Continue digging for 8–12 inches, depending on the location of the area. An uphill slope needs to have an even ground, requiring a few inches more for adjustment.
  • Make a trench for the footer. Refer to the local building code for the allowed depth of digging.
  • Place the rebar running along the excavated perimeter of the area.
  • Fill the excavated site with 6–8 inches of crushed stone or gravel.
  • Pour the concrete mixture into the trench. Leave it for 2–3 days to settle properly.

5. Build the Barn

This section is intended to give you an idea of how to build a single-slope barn. You should consult an expert to guide you and adhere to the requirements of the local authorities for the building code.

Here are the general steps to building the barn:

  • Start by outlining the corners. Install the poles on the corners on top of the steel plates.
  • Arrange the lumber wood to outline the height, as well as the edges for building the wall.
  • Use nails and a nail gun to merge the wooden pieces together.
  • Make a series of trusses for the roofing frame. The frame should slope down in the direction pointing to the back or side of the barn.
  • Install the plywood on top of the roofing frame.
  • Nail down the roofing felt on top of the plywood. It helps prevent moisture from damaging the trusses.
  • Nail down the metal roof on top of the roofing felt.
  • Make a frame for the door only if preferred. Also, make frames for the windows to enhance lighting and ventilation.
  • Build the walls according to the plan.
  • Install the windows and the door.

6. Finish the Structure

Old abandoned mill in Canada

Once you have built the raw appearance of the barn, you can paint the wall to add appeal to it. Also, it's important to consult an electrician on how to connect the wires to power up the utilities such as lightbulbs and fans. Install at least one exhaust fan to let the air circulate properly in the area.

Allow a plumber to install the sink and connect it to the plumbing system and water source. It's crucial to have proper drainage to redirect the wastewater into the main sewer.

You can climb up the roof to seal the spots where the nails are. This is to ensure that water will not leak into the gaps.

See this waterproof sealant on Amazon.

Now, simply follow these steps to seal the roof:

  • Apply the sealant on all the spots where you nailed the roof.
  • Spread the sealant with a brush or scraper. Refer to the product's instructions for use.
  • Let the sealant dry under the sun.

7. Organize the Barn

You can now organize what's inside your new barn. Plan where you will place the basic tools like screwdrivers and wrenches. Consider having a cabinet for the rags, broomsticks, and other cleaning materials.

If you have livestock like horses or chickens, make sure there's a door for their safety. You may need advice from an agricultural expert on how to shelter them inside the barn.

Avoid putting unnecessary stuff inside the barn. You can have some benches, though, for sitting or a boot storage rack.

Single-Slope Vs. Double-Slope Roof

The main difference between the two is the ridge in the middle of the roof. A single-slope roof has no ridge, which the double-slope has. The ridge helps merge the two slopes, resulting in a sturdier roof.

The purpose of the slope is to redirect the rain away from the foundation. A single-slope roof is quite easier to install due to less effort in cutting and materials needed. On the other hand, a double-slope roof is recommended on one-story or tall houses like a bungalow.

How Long Do Barns Last?

A classic red barn on the plains

The usual lifespan of a pole barn ranges from around 40 to 60 years. This will depend on the materials used and the accuracy of following the building code.

Maintaining A Pole Barn

You can prolong your barn's lifespan by applying these maintenance tips:

Fix the Leakages

If you notice that rainwater is pouring down through the walls or on the roof, then you need to fix it. You can extend the roof by adding a layer of underlying support. This helps the rainwater slide further from the foundation.

Repair Minor Damage

If you see minor damage like corroded metal or a broken wood frame, repair it right away. Such minor damage can become worse when left ignored.

Weatherstrip the Windows and Doors

Weatherstripping is a technique of sealing the gaps on the edges of a window or door. It's a way to stop rainwater from entering through the gaps.

Consider using a rubber strip to secure such gaps along the edges.

Click here to see this rubber strip on Amazon.

Follow the steps below to weatherstrip windows or doors:

  1. Clean the edges of a window or door with water and soap.
  2. Measure the edges, then copy this measurement to find the size of the rubber stip.
  3. Cut the rubber stip.
  4. Attach the adhesive side of the rubber strip along the edges.
  5. Test the window or door.


karwendel mountains in austria with single sloped barn

We have discussed the basics of building a single-sloped barn. The steps to do so may vary depending on the structure plan. So you might as well consult a professional who can help with accurate planning.

Are you interested to read more related topics? We know you'll love these articles:

How To Lock A Barn Door [9 Stylish, Secure Options!]

What Is The Best Color For A Metal Roof? [Answer Varies By Climate]

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