I'm planning on building a 10'X20' back yard shed. My plan is to pour concrete piers and tie in 4X6X20'. Flooring on top. I'd like to make sure that I do it economically..as well as structurally sound. I'm handy...but have never built anything from scratch.
1) How many piers do I need to pour and their spacing? Can I get by w/ 2 4X6X20 layed out in parallel...say 8' apart....and piers say every 4' (Total of 10)? Or should I go w/ 3 4X6X20 and 15 piers?
2) Should I use 2X6(s) aor 2X8(s) for the flooring? 2X4(s) or 2X6(S) for the walls?