Placing a small shed on top of patio blocks – need foundation advice

I'm buying a small shed, with a footprint of about 5x3 feet. I'm placing it on top of my patio, but the patio blocks are not entirely level. There is a dip of almost 1 inch right where the middle of the shed will be. I cannot redo the patio, so I will need a base for the shed. I'd probably need one for drainage even if the patio was perfectly level. I have two ideas: Level the patio with stone dust. Overlay with PaverBase panels. Top with 12x12 inch concrete pavers. Level the patio with stone dust. Use a driveway-rated plastic interlocking grid system as the foundation and fill it with small crushed gravel. My question: Which of these options is better? Or is there a better way to provide secure footing for the shed on top of the patio? Thanks for any input. submitted by /u/jimroyal [link] [comments]

Jun 11, 2025 - 18:10
 0

I'm buying a small shed, with a footprint of about 5x3 feet. I'm placing it on top of my patio, but the patio blocks are not entirely level. There is a dip of almost 1 inch right where the middle of the shed will be.

I cannot redo the patio, so I will need a base for the shed. I'd probably need one for drainage even if the patio was perfectly level.

I have two ideas:

  1. Level the patio with stone dust. Overlay with PaverBase panels. Top with 12x12 inch concrete pavers.

  2. Level the patio with stone dust. Use a driveway-rated plastic interlocking grid system as the foundation and fill it with small crushed gravel.

My question: Which of these options is better? Or is there a better way to provide secure footing for the shed on top of the patio?

Thanks for any input.

submitted by /u/jimroyal
[link] [comments]