I'm planning on building an 8x12 shed with a gravel base. From what I've read, the gravel base should extend beyond the perimeter of the shed at least one foot on all sides, so I'll be installing a 10x14 base (or slightly larger.)
Here are my questions:
- I'm afraid that over the years the exposed gravel around the perimeter of the shed will move around; weather, the kids playing, etc. will take their toll. The gravel will migrate onto my lawn. Sediment build-up on the gravel base won't look too nice. Is this something that I should be worried about? (I hope that the shed and base will still be in good condition 10-20 years down the line.)
- If there is concern that the gravel will move. Would it be a good idea to cover the perimeter gravel with landscape fabric or some geotextile? I'll be building a 4x4 frame around the gravel pad, and I could staple one edge of the fabric to the 4x4 frame and the other edge to the shed. I'm imagining that over time this solution will improve the aesthetics and keep the gravel in place. I'd be interested in hearing opinions on the pros/cons of such an idea. In addition, I'd appreciate if anyone could offer advice on what type of fabric to use - would any weed-barrier from Home-Depot work, or should I use something specific. (All the fabrics I've seen are designed as an underlayment, but I'll be using it on top of the gravel exposed to the elements. I'm not sure how it will hold up over time.)
EDIT: I should have described the base better. I don't plan on topping the gravel with a concrete slab, rather I'll leave it exposed - here's an example.