For many of us, the moment we learned that a 2×4 board is actually 1.5 inches x 3.5 inches was simply mind-blowing. The reason for this apparent contradiction is that the board has been planed down to eliminate irregularities. At one point, many years ago, 2x4s actually were 2 inches x 4 inches, but their rough surfaces made them difficult to stock and handle. The old terms, such as 2×4 or 4×4, are still used, and are known as the “nominal” size of the board. These nominal sizes are used because they are easier to say and they stick to tradition. Now, thanks to a lawsuit, most big box stores list the nominal and actual sizes of lumber.

Radial-arm saws, sliding compound miter saws, and powered miter boxes (chop boxes) used for crosscutting long boards are best located against the longest wall of the shop, as shown in the first option in the illustration. If the saw is to become a stationary machine, it’s typical to mount or build it into a long, narrow support table fitted with a fence.
I wanted to have numerous outlets, and have enough elec­trical service that I did not have to worry about overloading circuits. There was already some lighting, so I simply picked off that line and added additional lights to keep things bright and cozy. I ran a 240V line for the table saw and jointer with a dedicated breaker. For wall outlets, I ran 14-3 wire, and split all the plugs, so that I can run one machine on the upper plug, and another on the lower plug of any outlet.
Since most of your assembly will be done on the assembly table, it just makes sense to have your clamps nearby. If you’re short on wall space, try a rolling clamp cart! If you use your workbench for assembly, keep your clamps near the workbench. Check out these two helpful articles for clamp racks: A Simple Utilitarian Clamp Rack and A Parallel Clamp Rack.

That headline struck me as discouraging. As an entry fee, $5,000 seems high enough to exclude a number of potential woodworkers, myself included. Christiana softened the blow by saying that used tools could cut the cost roughly in half. That figure seemed much closer to my experience, which involved buying a mix of new and used tools. Having said that, buying the right used tools is much more difficult than buying from a catalog or dealer who stocks everything needed to build a great shop. It requires a bit of guile and a good plan, but the payoff is worth it. Through careful choices and good fortune, I was able to outfit my shop with a blend of new and used tools for around $2,000.
Shop layout is all about making the best use of space. Place your machines so that you have adequate “safe space” that you need to work around them. The “buffer area” beyond that is the amount of room you need to run large stock though a given machine, keeping in mind that buffer areas can overlap between machines. If you want to get more organized, buy some 1/4-inch squared paper, make scale models of each machine including the safe space around each, and place them on your model shop layout. Remember that buffer areas need to be long enough to put an 8' sheet through a table saw, or a 6' plank through your planer, for instance. I raised my planer, so that I can use the area above my router table to pass long planks through the planer – all it takes is some modelling, and a little shuffling, and you will find the layout that works for you. Each space will have chal­lenges; I had the area under the stairs that was wasted space, so I installed the dust collector there.
Before you buy a single tool, you need to take a hard look at your workshop space. If your workshop is a freestanding building or empty barn, you can simply measure the perimeter and know that you have the entire square footage at your disposal including the wall space. If your workshop is tucked into the back of a garage or a corner of partially finished basement, you’ll need to plan your furnishings with cars and water heaters in mind.
Let’s be clear about one thing: No workshop is perfect for everyone. If there were, I could simply give you a precise plan to follow with clear dimensions. Every person who comes to the hobby, avocation, or profession of woodworking has his own particular collection of tools and his own peculiar work style, skills, and desires for the kind of woodworking he wants to do that gives him a unique approach as to how he will lay out a shop: where the tools should go, where lumber and supplies are stored, and how much bench area he needs.