Shed platform question
I'm building a 6X10 wooden shed in a 9x11 area beside my house. There is a chain link fence on the south & west sides and my house on the east side of this area. I had sod which I have removed. I decided to make a box out of 4x4's & fill it up with 3/4 crush (gravel)& then build the shed on top of that. My main concern is with this box I'm building. The 4x4's will be running along both parts of the chainlink fence & right along the foundation of my house. My questions are:
1. should I still keep a slight grade so that water will flow away from house?
2. How much should the grade be?
3. Will it not make the frame I'm building to put the shed on look crooked and therefore my shed as well?
4. My biggest concern is that once I fill up this 4x4 box with the rock/gravel, the ground will be 4" higher in the box compared to the ground directly under the 4x4 beside the house. When it rains, will it go between the foundation & the 4x4 & cause future problems? Anybody have some good suggestions?