How can I build a base for an outdoor shed?

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Trying to get some ideas on what to use as a base for my exterior shed.


  9 answers
  • Kathy Gunter Law Kathy Gunter Law on Jan 10, 2020

    We made the mistake of pressure treated wood straight on the ground with plywood and painted that. Water seeped up through the wooden frame to the plywood so I would highly recommend you put a water barrier or paint both sides of the plywood if you go that route. I wish we had poured a pad. I've seen people do pads like central units sit on and put a few together which should also be fine.

  • Deb K Deb K on Jan 10, 2020

    Hello Beto, you could make a platform with pressure treated wood, ensure it is square and allow about 4 inches space above and beyond the size of the shed dimensions, or you could put pavers down, or sidewalk blocks.

  • Dee Dee on Jan 10, 2020

    We used cinder blocks and then pressure treated wood. It has held up very well over the years. I think the secret is keeping the flooring off the dirt.

    • Beto Pena Beto Pena on Jan 10, 2020

      Yes have heard it's a great idea to keep it off the floor. Thanks

  • Mogie Mogie on Jan 10, 2020

    When we put our shed in hubby poured a cement pad first. We live in Oregon and get lots of rain so it was a good idea. Haven't had any problems in over 15 years.

  • William William on Jan 10, 2020

    This is the base I made for my workshop addition.

    https://www.hometalk.com/16734550/she-shed


    https://www.hometalk.com/12122767/building-my-she-shed


    https://www.hometalk.com/1629496/building-a-backyard-shed-shop

  • Beto Pena Beto Pena on Jan 10, 2020

    Your idea is now one of two choices I am contemplating .

  • Beto Pena Beto Pena on Jan 10, 2020

    Thanks for sharing. Great information


  • Betsy Betsy on Jan 11, 2020

    Hi Beto: Depending on the size of your shed, you can dig the area out, about 5 inches, put down some paver sand and pound it down well and them put down some of those paver stones around the edge and across the middle, front and back and put your shed on that. If, over time, the shed leans one way or the other, it will be an easy fix. Good luck