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?
I'm not kidding when I say that this shop has everything you need to make a project happen.  They are not only equipped but also some of the nicest people.  Supportive and, mostly, willing to help you with your project.  The idea is for you to do it on your own, but if you get stuck I have yet to see someone say, "no, figure it out on your own."  they are helpful and fair.  I love this place, and the people I have met there.
The Handy Home Products Berkley 10 ft. x The Handy Home Products Berkley 10 ft. x 10 ft. Wood Storage Building Kit is made with factory-primed SmartSide siding to resist fungal decay and wood-destroying insects. The Berkley’s gambrel style roof provides plenty of height to add a loft for extra storage space. The 6 ft. high side walls ...  More + Product Details Close

I live in the second rainiest city in the country, Pensacola, so I am used to dealing with wet. I literally work out of my garage (read storage area, small woodwork area, washer/ ). I wheel bigger tools and table out to the little covered area in front of the garage. I have an 8 x 10 aluminum shed that is strictly garden stuff storage. I mention this for two reasons.

A bottle carrier is a bucket like carrier used to carry beer bottles and so. Yes, the same one you must have used to carry your six-pack. Drinker or not, a bottle carrier is a useful item for everyone. It can be used to carry around or store small items around a household. And it is also very easy to build one. I have several of these lying around my house. Also known as wooden beer totes, this is one wood item you will absolutely love to make. It is also super easy to build.
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.)
First, cut one long edge. Second, cut a short edge, making sure it's square to the long edge you just cut. Clamp both pieces of the edging you'll be using along the long edge you've cut, and measure the width of the base plus 1/4-1/2", mark that, and then lay out a line through the mark that is square to the end you've cut, then cut along the line. Finally, cut the remaining short edge square to both long edges. (The length of the top doesn't need to precisely match anything, so we don't need to bother with clamping the trim before measuring.)
Out of all the shed books I have read, this book stays by my side while I hammer in the yard. The book is well written by what appears to be a non professional book writer (A Good Thing). It reads as if you are getting advise in laymans terms from your neighbor "The Craftsman", a welcome change from the DIY books, that assume a level of expertese. The level of detail is high and discusses gotcha's, advise, and trade "secrets" that could have only come from years of personal experience building sheds.