I recently described my "recycled road sign" woodshed elsewhere, and would be the first to admit that from some angles it's more than a bit of an eyesore - something about retroreflective orange... :cheese:
However my larger and newer shed is a bit better looking, and I think is a bit of an enhancement on the earlier design. It holds about 6 cords by my calculation, it would be hard to make larger, and that would make it a bit of a pain to get the wood in and out of it, and possibly make it somewhat less effective at drying, though not terribly so. However one could easily "modularize" it and build something much larger if desired. This size is largely determined by what is available in stock lumber sizes at HD.
The cost was reasonably low, even using mostly new materials from Home Despot, approx $500 last summer.
The first requirement is an area of reasonably flat, level ground approx 8'x16' - it needs to be flat enough to put the base rails on and have them mostly supported, and level enough that the piles won't tip - I'd say a couple inches up and down won't matter, but don't have much more than that...
I used PT lumber for anything which touched the ground, which included the base frame and the four corner uprights, the rest was regular stuff. The first part to build is the base frame, this needs to be no more than 8' wide, and consists of as many pairs of 16' PT 2x4's as you will have rows, which is determined by your stoves optimum log-length... My smoke dragon likes 24" logs, so I planned for 4 rows, shorter log length users might want 5 or possibly 6 rows. I put each pair 18" apart, with a 6" gap between pairs - ( if X = board, then X 18" X 6" X 18" X 6" X 18" X 6" X 18" X ) note that 3" of the stack hangs out on each side! These boards define the stack rows and keep the wood off the ground. All the boards are on edge, and are screwed into another 2x4 that runs across each end.
In each corner of the base frame, I put an upright 2X4 to support the end wall and roof. To pitch the roof I made the uprights in two pairs, a short pair that went on one long side, and a taller pair that went on the other.On my shed I made them 6' and 7' long, in retrospect I wish I had made them each 6" or a foot longer. Those in areas with heavy snow loads might want more of a difference so as to get more pitch. I screwed these into the base frame from both directions both to reinforce the base structure and to help make it a bit more rigid. I tied the tops of the uprights together with more 2x4's, 16' on the long sides and cut to match my pitch on the ends.
I found this seemed a bit wobbly, so I added a third 2x4 rafter lengthwise down the center of the roof, and put a 2x4 center post under each rafter Since the middle rafter didn't line up with any of the bottom frame members, I bridged across two of them with one of my 2x4 scraps to make a footing for the middle rafter support. I cut the center support rafters a little bit over length and jammed them in, in order to counteract any tendency of the roof to sag, and to make the rafters into stressed members.
Across the ends of the woodshed I put a 6'x8' section of prefab stockade fencing from HD - this gives reasonable weather proofing while still allowing some air to flow through, and keeps the piles from coming out the ends of the shed. It is less expensive than any suitable ply, looks fairly good, and was a perfect fit for the design. Because of the height of my uprights I had to trim some of the pickets on the low side. NOTE, put it so that the cross members are on the OUTSIDE of the shed - If you put it with the picket side out, the weight of the wood might push the pickets off...
For the roof, I put a bunch of recycled porch floor boards across the rafters on a diagonal (set by the length of the recycled boards), then put down a roof of clear corrugated plastic (PLEX?) which only the larger HD's carry. This stuff comes in white, green or clear - I chose clear for the benefit of whatever solar gain it might give me, plus I thought it looked best. I also got the shaped foam blocks you are supposed to use when mounting the stuff and the recomended rubber washer equipped screws. The specs on the stuff say you are supposed to support it at least every 24", I pushed it because I had added the extra floorboards, If I hadn't added them, I probably would have put in two more 16' rafters and support posts. The other thing I ran into is that the panels came in 8' or 12' lengths, because of my roof pitch, I really needed 9' - I opted to cut some extra panels into 2' lengths and extend my 8' panels a bit extra (the installation specs require a minimum 6" overlap) It was a bit of a pain, but it works and looks OK. I think you can get the panels in 10' length at a disproportionately higher cost, but this might be a better choice for those using a higher pitch roof.
The result was a shed that is open on the long sides, holds a great deal of wood, and does not look that terrible (I would define it as "rustic but not hillbilly") I didn't totally dodge the road signs, I placed a couple against the center uprights as I was filling the shed to divide it into 4 "bays" that I filled in sequence as I got my wood cut and split - I started filling it in June, and finished in Sept - I then used it in FIFO order, and all the wood was reasonably dry when I burned it.
For winter, I used tarps from Harbor Freight, I reccomend the more expensive SILVER heavy duty version, there is a DEFINITE difference in the quality, and the silver isn't as obvious or tacky looking as the blue ones. I found the 4'x7' worked best - I stapled them to the top rafters, and let them hang down (sometimes needed to tie the bottom to prevent flapping) - I would roll them up and secure them with recycled lettuce velcro to get wood or for summer drying when I just leave them up.
Hope this helps,
Gooserider