Now You Can Build a Shed Floor with This Simple Guide

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Wood shed designs have numerous uses, such as storing tools and gardening supplies, hosting parties, or providing a place to call home while renovating your main house. And to get a shed up and running, you’ll need a floor.

The simplest way to get a sturdy floor is to build one yourself. You need little more than two-by-six lumber, sheet plywood or OSB, and some extra items and fasteners to make a functional, robust floor. You might even want to install a floor covering — a touch that adds to your shed’s flooring value.

Project Summary

  • Total time: 4 hours
  • Result: 8 ft. x 8 ft. shed floor
  • Approximate cost: Between $200–$400

Tools Needed

  • Hardware equipment/tools
  • Circular saw
  • Speed square
  • Hammer
  • Wood clamps
  • Tape measure
  • Pencil
  • Materials
  • Two sheets of quarter-inch plywood, each 4 feet by 8 feet in size
  • Ten two-by-six boards, also 4 feet by 8 feet when cut in half
  • Four steel framing connectors, each 4 and 1/4 inches in size


During the building process, wood shed designs require the following:

  • Floor joist system: The base of wood shed designs must have a joist system. This consists of a series of parallel two-by-sixes spaced 16 inches apart, two more two-by-sixes that form the ends of the structure when nailed perpendicular to the joists, and either concrete blocks or pressure-treated four-by-six boards fill in the gaps between the joists and anchor them in place.
  • Sheathing or subfloor: A subfloor is a smooth sheet of plywood attached to the top of the floor joists. It provides a strong, smooth floor that stabilizes the joist system. 

You may use the OSB or plywood subfloor as the top floor covering,  so depend on both materials to provide a smooth, stable base while deciding what material you’d like to spread on your wood shed designs.

  • Optional covering: Depending on your shed plans and your taste, you might want to add flooring.
  • Pine Flooring: Inexpensive tongue-and-groove pine floor planks are easy to lay down if you’ve already laid down the sheathing. You’ll only need to cut planks to size, place them between the joists and nail them with a face nailer. You could also glue them down, but this is not necessary.
  • Rustic-Grade Unfinished Wood: This material is slightly more expensive than pine yet looks very similar. It’s one of the best-kept secrets of many flooring retailers. Unfortunately, it has defects and blemishes that you need to spot carefully before purchase.
  • Sheet Vinyl Flooring: What it lacks in durability more than makes up for in ease of installation, the ability to shed water, and a smooth surface. Since sheet vinyl can tear, use it only in light-duty sheds. One section of sheet vinyl flooring can cover most small sheds.

Necessary Documentation

People who want to build standalone wood shed designs do not need a building permit in most communities. However, someone who wants to build a shed as part of an overall shed-building project might need a building permit from the local permitting department. As such, talk to the appropriate authorities before proceeding.

Construction Instructions

Once you have everything prepared, follow these instructions for building wood shed designs:

  • Mark rim joints.
  • Install floor joints on rim joints.
  • Move the floor joist system into place.
  • Attach floor joist system to the foundation.
  • Install floor sheathing and floor covering.


That was easy, wasn’t it? Remember this guide for your wood shed designs before building it from scratch. Go on; you can do it! We believe in you!

But if you need expert help with your wood shed designs, contact Shed Mechanics ASAP! We’ve got extensive guides, tutorials, and tips to make building your dream design a better experience! Learn more via our website today!