How should I Prepare My Site?
A crushed stone base, 4-5″ deep, is one of the best ways to prepare your site. Be sure to use “crushed” stone as opposed to “pea” stone. 1/2″ is a good diameter and is relatively inexpensive. When preparing the site with crushed stone, be sure to extend the size of your base 2′ longer and wider then the actual size of the shed. Place your shed in the center of the pad leaving a 1′ perimeter of stone around the shed. This will prevent roof runoff from splashing dirt back up on the siding causing what we like to refer to as “ring around the shed”.
When digging out the area to accept the stone, start at the lowest area and establish the grade by digging down 4-6″. You can now excavate the rest of the site, keeping in mind the site should be level when finished.
A cement slab is one of the more expensive ways to prepare your site. However, if done correctly, it can also be the best. A slab will keep the shed level and prevent grass and weeds from growing both under and around your shed. A slab is also beneficial if you intend on storing larger items (wheel barrow, lumber, grass catcher etc.) behind or next to your shed. Increasing the size of the slab by a couple feet is a good idea to accommodate these items.
You may also decide to simply place your shed directly on the ground. Depending on the shed construction, this should be fine. Be sure that the shed has a pressure treated or galvanized metal base. Also make sure it is ventilated underneath by blocking it up if needed.