Originally Posted by PennsyPride94:
Good point Dave I honestly did not think about that when mentioning an 8x8.
I can do what I want in a 6x8 if I have to. I'm trying to keep the amount of cutting of the wood down to a minimum so that I can have less of a mess and get it up quickly. Home Depot and Lowe's will both do some cutting for you, like cutting a 4x8 sheet of plywood in half length-wise, so you might want to check into that.
I really like the pictures posted by Ted. I am leaning towards something that is more like a coffee table. I really don't need to have something 40 inches off the ground so that I can stand and watch the train go by. Sitting on a small chair by the coffee table setup would do just fine. Did the link show you the coffee table I was talking about?
In the 5x9 and 6x10 setups I didn't read carefully I just skimmed and didn't see anywhere where they mentioned how the pieces of plywood were setup to make the 5x9 and 6x10 table? Two pieces? One giant one? Multiple smaller pieces of plywood? Sorry, I was mostly talking about track designs, not the benchwork, but it sounds like you already have a design in mind.
How economical is it to do something like a 5x9 or a 6x10?
From a purely economical point of view with regard to the cost of wood and the style of benchwork you are considering, a 5x9 would end up with a lot of wood left over. You'd have to buy two 4x8's and then cut 1x8 and 1x5 sections to expand one sheet to 5x9.
With a 6x10, you'd need to add 2x8 and 2x6 sections, so you'd only have a 2x2 section left over. If you can work with a 6x10, a 5x9 doesn't make any sense unless you go with the ping-pong table.
The problem with going larger than 4x8 is that you need a way to attach the expansion sections. This can be done by building a grid of 1x3's or 1x4's for the plywood to sit on, but this means more work, more cutting and more expense. If you want easy assembly/disassembly, you can make smaller grids that will bolt together. For a 6x8 layout, I'd suggest two 4x4 and two 2x4 grids (this is what I have for my 6x8 tabletop). For a 6x10 layout, I'd suggest two 2x4 grids and four 4x4 grids as shown in the attached photo. The cross-members are in 16" intervals.
Now, if you go this route for the 6x8, you can see how you can cut a 4x8 sheet in half across to give you the two 4x4 sections and cut a 4x4 sheet in half for the two 2x4 sections. If you want to expand to 6x10, you'd make a 2x6 section instead of the 2x4 sections and add it at the bottom left. If you want to go to 8x10, you'd just add two 4x4 sections as shown.
Incidentally, my tabletop lays on a 4x8 frame made out of eight 2x4s and I don't think it gets any cheaper than that (less than $24). Everything is assembled with screws or bolts, so the entire layout can be disassembled quite easily. If you make each 4x4 and 2x4 section a separate module with the appropriate wiring using connectors, you can disassemble and move the whole thing without having to tear is completely apart. That is how my next layout will be built and I'm not going to worry about the seams between modules.