Coal Plans for a 4X4X8 ?

OK I have seen plenty of coal bins here on the forum, but haven't seen any plans. Does anyone have plans for a 4x4x8 pressure treated coal bin, I would like to get some kind of idea on how much this would cost to make. There is a fellow in a near by town that sells them for 425.00 . I think I can make one cheaper than that but I know pressure treated isn't cheap either. Any plans , ideas, or material list maybe? Thanks

Hey woody30 you will need 4 sheets of 3/4 plywood and around 11 2x4 8ft long and a box of screws 2 1/2 to 3 inch take two 8ft 2x4 for the sides on the bottom the take 1 8ft 2x4 cut to 4ft for bottom front and back screw them to you 2 8ft make it like a box then take 1 8ft 2x4 cut it to 4ft take one 4 ft to put in the middle for extra support then take another 8ft cut to 4ft use them for your uprights in the corners make them like a L you will need 8 4ft then take two 4ft for the middle screw you 4x8 sheet to bottom frame then your two 4x8 sheets for your sides then take a 4x8 sheet cut in half 4ft for your back then take the other 4ft cut in half for you front two 2ft you will use it like a gillatene now you will have to screw in a 1x3 4ft on each side on the inside to make a 1 inch channel so your two 2ft sheets can slide in from the top to bottom for your front that way you can remove one when coal gets low oh you should have a few 2x4 4ft left use them for support screw them to the tops of you uprights across you back two and you middle two and you front two that way it will help to keep your sides from bowing out from the weight of your 3.2 tons of coal as for covering the top to keep weather out you can use a tarp or buy another sheet of plywood to lay on top you could use some kind of lache system so you can take it of when you need to fill it instead of screwing it on another thing is to drill some holes in the bottom floor to let any water out I hope this helps you out and I did not confused you that is how mine was made about 12 or 15 years ago still use it take care and good luck if it is outside you should use some kind of deck sealer or paint on all of the wood it will last alot longer

Coal Berner, I really appreciate you taking the time to write this out, it gives me a very good idea on how to build it, and I will also have a better idea on how much this will cost me. I can sure save some money building it myself that's for sure. Thanks Tim