Best way to build it is to make a pole foundation.

12 x 24 I assume you want to have an opening so I would
set 4x4x6 post into the ground 36ins then be sure to put some
form of concrete block under them. space your side post 6ft apart
your gable end post 3ft. then get 2x6xthe longest length you can
which is 14ft at most lumber stores pressure treated bandboard.
get enough to make your skirt around the base. then cut off the
excess post to be level with them. Then cap it with a 2x8 pressure
treated board and you have a pole foundation. You can then
build stud walls etc. with a shovel and a bit of work you can probably
get the area around post level. Consider renting an auger
at your local tool rental it'll make it short work. You need stainless
6in carriage bolts to attach the bandboard to the post and you can
nail the sill plate aka 2x8 on top with 16's. Down the road with
this foundation you can also have concrete poured. For now you
should probably go with 1 1/2 limestone to cover the ground.

For your walls and strength I would build a 2x4 16 on center then
run purlins across the walls to accept your boards or t11 or metal.
Truss roofs are nicer and hold up to heavy loads just remember to run
a storm brace.

Hope this helps,

Cindy


wrote in message
ups.com...
i want to build a wood shed for very little money, i have salvaged wood
from a garage that was needing torn down. Most of the wood is
salvageable, but not all. I am planning to make this shed on a dirt
floor.

However, the area i am going to put it on, is not flat.

i don't think the flatness would matter so much if i was going to put a
floor in it, because i could raise the floor above the ground on one
end.

How should i go about doing this? It will be constructed like a pole
building.