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How to Build a Wood Floor with Pole Barn Construction

Katherine Kally

Building a wood floor using pole barn construction has several benefits. This type of construction is one of the most economical ways to build any type of structure. In addition, pole barn construction is also quite easy. Pole barns are usually made with round metal poles, but for this project, wood is better. When building a wooden floor, square posts are typically preferred. The flooring size is up to you, but 2x4 or 2x6 is most common. Remember to use pressure treated wood for any outdoor project.

Basic Pole Barn Construction
  1. Obtain the required permits for your construction. Lay out the design of your floor using the builder’s string and install the desired foundation. Choose from gravel, installed footers or a concrete slab. Posts should be place every 8 to 10 inches and should be in accordance with the requirements of your local building codes.

  2. Dig the holes for your posts. Depending on the climate in your area, a depth of 18” to 2 feet would be preferable in order to get below the frost line. Brace the posts temporarily with 2x4’s. Make sure the posts are level and then secure them with quick-drying concrete.

  3. Frame the outside of your floor with the treated wood beams. Secure the beams to the posts using metal brackets. Check to ensure the beams are level.

  4. Attach the treated wood joists to the outside beams using joist hangers. Space the joists according to size of the wooden floor covering and in accordance with your local building codes. This will commonly run between 16 and 24 inches.

  5. Attach the wood flooring perpendicular to the floor joists using the deck screws.

  6. Trim any wood flooring overhang with the circular saw.

  7. Seal the wood floor using appropriate sealant for protection.

  8. Tip

    Always contact your local permit office for any specifications and building codes before you begin your project. Choose dry, level land for the easiest pole barn construction.


    Always use the proper safety equipment when cutting or handling wood.