When I was younger I was a part-time framing carpenter so I decided to strike out on my own and see what I could come up with. I chose a shed size of 10' X 12'. I did a LOT of research online, went over a LOT of plans and in the end I wound up combining many ideas into this shed. I also decided that I wanted a cement floor. In most cases this would increase the cost of your building by up to $1000 depending on if you pour it yourself and do all of the work or if you have a contractor do it for you. I decided to talk with a local cement company and they put me in contact with someone that would do the work for me and since I also like to do things the easiest way I chose this route so my flooring cost me a total of $400 total! Yeah I and my wife was quite happy about this. I also chose not to include rebar in the concrete, I instead went with the fiber system that I discussed with the concrete company, it made the cost a little more but it is "supposed" to work just as well so I guess I'll find out in a few years.
In this first picture I have let the slab dry about two weeks as it had been rainy anyways and I began this on a Saturday and would do something to it most every weekend. I completed the shed on July 4th weekend and the only help I had was my oldest daughter helping me hold up a wall or hand something up to me on occasion.
The first thing I did was to measure and pop a chalk line of where my bottom plate would sit so that I could drill holes for the anchors to go through. A vandal who shall remain anonymous (wife) decided to commemorate the new construction project. While I know it's not "required" I did use "sill seal" (I think that's what it's called) on the bottom plate to help keep out water/bugs etc. It was pink and is the same width as the lumber.
Lastly, I also chose to have the anchor bolts put in the concrete while it was being poured so I wouldn't have to drill them later on which I always recommend. The one caveat that I didn't do at the time was install a french drain system around the concrete slab, After 2 years I have noticed that water does tend to gather near the slab, also this gives weeds a chance to grow up inside the building but and I will be installing this type of drainage soon to solve this issue.
The final cost of building this shed was under $1500 including the floor. Taking into consideration I didn't shell out the money all at once and built it in pieces it wasn't too traumatic to the wallet. The next thing I want to do is run electricity to the shed but that will be in a different instructable.