12x20 Garden Sheds, Pool Houses & Dog Kennels

A 12×20 structure offers a generous footprint for homeowners looking to bring purpose and style to their outdoor space. Whether you’re planning a functional garden shed, a relaxing pool house, or a custom dog kennel, this size delivers the flexibility you need to bring your project to life. Built by hand in Indiana, every structure from Miller’s Mini Barns is designed with lasting quality, thoughtful details, and customization options to match your exact vision.

  • 20 year warranty
  • durable & weather resistant
  • low maintenance
  • UV resistant
  • 95% recycled material
  • Durable

Browse 12x20

Standard Metal Shed

RMB224|1220SM|469

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Standard Metal Shed

RMB224|1220SM|470

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Standard Metal Shed

RMB224|1220SM|492

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12 x 20 His & Hers Shed – RMB224-420

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Lofted Garden Shed - RMB0004

Lofted Garden Shed – RMB0004

RMB0004

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Model 10111 12 x 20 Clay with White Trim & Green Metal Roof A-Cottage

Model 10111 12 x 20 Clay with White Trim & Green Metal Roof A-Cottage

MMB101111220AC

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