You may even want to put yourself in the picture. If your workshop space already exists, find a large piece of cardboard, wallboard, or plywood that’s about the size of the workbench top you envision. Find a couple of stools or chairs, perhaps a few books, and turn them into stanchions to support the “benchtop.” Is it too big for the space? Is it large enough for the tasks you envision will be performed upon it?
Workbenches have flat tops, though sometimes at the rear there is a cavity called a tool well that contains tools and components (and prevents them from falling off). One advantage of having the well set into the top of the bench is that, even with a variety of objects in the well, a large sheet of material can still be laid flat over the entire surface of the bench; the contents of the tool well offer no interference.
The top is supported by the top ends of the legs and the top sides of the top stretchers. Stand your legs on end on a flat surface (like my door) and see if they wobble. If you have an end that isn't quite stable, use it as a foot, where the leveler will make it's flaws unimportant. Check the top edge of each stretcher for straightness. If one has a bit of a bow, use it for a lower stretcher. It's less critical that the shelf be well supported along its length.
Though the preschool had been using the woodworking shop for storage, not realizing its historic value, it’s still in remarkably good shape. The woodworking benches and tables are still in excellent condition. According to Garrison, the shop is filled with clues as to how it was used. Some benches were covered in paint while others bear saw marks, testifying to the variety of tasks that were performed there.
Permanent or Portable? This is a distinction that decides much about your bench choice: Is it to remain stationary or must it fold, roll, or otherwise make itself scarce between jobs? Large, heavy benches are more stable and, in general, more adaptable to different jobs (sometimes several at once). But the bigger the bench, the more hassle involved with stowing it.
If you decide upon construction lumber, you want kiln dry lumber. Green lumber will warp on you as it drys. Dig through the stacks and pick out the straightest, cleanest pieces. Generally, the boards that are sitting loose on the stack are those that other people left behind, as they sorted through looking for better. Be prepared to move them out of the way, and to dig down to the better stock. Be nice, though, and put everything back when you're done.

1. In this post, you kindly remind us not to make it too deep or worry too much about the height. I presume you still believe a bench cannot be too long or too heavy? I’m with you — just asking if that’s actually still your opinion, since the bench above appears to be yet another six footer. (If longer is better, why don’t you build an 8 or 10′ for your home shop?) TYIA – remember, I’ve bought all my lumber to start my new bench, but I haven’t milled anything yet, so you’re really helping in an immediate way here!
You're not the first person to say this! I'm half inclined to use the Lowes shed as a starting point for my own design. But I do think I'd feel better if I could work as an "aprentice" next to an "old master". Someone at work is going to put me in touch with a guy who builds sheds for a living, and apparently he's competitive with the prices @ Lowes and HD. The Lowes shed comes with a "Handman Package" that I don't want but would end up paying for, anyway. The "workbenches" were laughably flimsy.
They immediately tried 2 of the projects, and first found that the instructions were a little vague (so many similar sized/shaped pieces - it was difficult to sort them!). The glue included in the kit had separated, and was not usable - but basic wood glue, which we had on hand, worked just fine. The projects turned out great, and, the time spent working on them was priceless!
Drilling a precisely positioned, deep, wide hole isn't easy, without a drill press. So I bought a WolfCraft drill guide. After experimenting with it, and drilling some test holes, I build a jig around it. I screwed it to a scrap of MDF, and then drilled a carefully-centered 3/4" hole. The MDF can be clamped more easily than the base itself, and the 3/4" hole will keep a 3/4" Forstner bit drilling precisely where it is supposed to.
From the image above it seems that you do not require a big tutorial to help you to build this candle holder. All you need is a wood panel, a hook and some nails/screws and do exactly what you see in the picture. Attach the hook to the wood panel using two screws and then, attach the panel to the wall using more nails or screws. That’s it. I hope this gets the job done.
The right shed for your home will depend on your desired use. Utility bins are ideal for storing trashcans and recycling bins out of sight. Patriot sheds are ideal for sporting equipment, riding mowers, snowblowers, and other small vehicles and heavy tools. If you want a workshop with storage to spare, look into the Elite line of products. With creative small-space storage solutions, any one of our sheds can truly increase the usable space in your home.
Traditionally woodworkers  (joiners) learnt their craft working as an apprentice in the Master Craftsman's shop doing the grunt work and learning by assimilation over many years. Our approach is a little different. We're making the assumption that you're smart; are developing or already have a passion for woodworking; and can devote three months to intensive learning.

With the shelf secure, get a couple of friends to come help, and stand the bench on its feet. I said earlier moving the top by yourself is dangerous. Trying to lift the entire bench is foolhardy. Of course, I already said I'm stubborn, so I did it myself by rigging a simple block-and-tackle using lightweight pulleys I got at the hardware store. (Not the lightest-weight pulleys, those are meant for flag poles and have a design load of something like 40 pounds. These had a design load of 420 pounds.)

Get perfectly, consistently spaced and centered shelf-pin holes! Economical and practical, this jig can be used on assembled or unassembled cabinetry. Re-designed handle includes two storage compartments for self-centering bits! Ideal for adding shelves to new or existing cabinets. Drills holes either 1-7/16" or 2-1/2" from edge. Insert shelf pin in top or bottom position to extend jig for continuous drilling. Shelving Jigs measure 20" long Additional Self-Centering Bits available. 

Who doesn’t want to have one awesome and handy wooden desk organizer that not only looks beautiful but can store all your mini office desk items properly? See the picture below. I am sure you will love this one. I have already built one myself as I just could not resist having one at my office. This thing easily stores all my office desk essentials, including pen, pencils, marker, small notebooks, etc. in the most organized way. You can see it yourself.

If you don't quite have the space for a real pony, make this handcrafted wood version instead. The horse pictured here is unfinished pine, but there are lots of woods and finishes to choose from. Everything you need comes with the kit, and the plans can be downloaded. If you don't want to build it yourself, you can order from the website—just allow two to three weeks to ship.

I agree that I might quickly outgrow a 12x8 shed. Lowes also offers a 12x10 Rancher (same style, but more room), but the 12x10 is 9 feet, 4 inches high, and my community only allows a maximum height of 9 feet. The 12x8 is exactly 9 feet high. I'm afraid of getting "out of spec" if I exceed the height limit and then getting in trouble with the Home Owner's Association. Having said that, 12x10 would be about the biggest size I could get for the available area in my back yard, so even if I hire a shed contractor to do this, the shed would have to be 12x10 or smaller.