I agree with all of these tips in a larger shop. In a smaller shop (mine is just under 400-square feet) most things are fairly close together anyway. One of my original principals for shop layout was … how is a machining process performed on a piece of wood? Is the wood stationary while it is machined … or does the wood move through the machine? If the wood is stationary, I have tried to have this set for one side wall of the shop. To be specific, I have four machines in one line with a continuous table to support long pieces that might need cutting from one or all of those machines. The machines in that line are (from left to right) the drill press, the powered miter saw, the square-chisel mortiser and the radial arm saw.
Spray gun: Not every woodworking job gets a film finish, but most of mine do. And of those, everyone will meet a spray gun. For a million reasons, including making finishing fast and fun, I recommend using a spray gun whenever possible. It will raise your game and make you n0t hate finishing. (Click here to read my thoughts on purchasing a spray gun).
My shop ended up being 23 x 19 feet, for a total of 437 square feet. I put my wood rack in the basement, but outside the walled in shop area. To keep the dust in the shop, a three part strategy was employed. I have a dust collection system, an air filtration system and a shop vacuum for cleaning dust out of machinery. I put up new walls, installed new electrical service, lighting, and two access doors for ease of materials movement. The shop includes two windows so that I can enjoy natural light, and not feel like I am squirreled away in the basement.
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.
One of the misconceptions about planers is that they make lumber straight. They do some straightening, but they don’t make lumber straight. That is what jointers do. Many lumber mills just send rough lumber through the planer allowing the board to exit the machine with the same ups and downs and whoops that is entered with, only now to a consistent thickness. This is especially apparent when gluing up a couple of these roller coaster type of boards and trying to get them to line up. After a couple of those glue-ups, you will swear by lumber that has seen the jointer before the planer, and never skip the jointer.
The number of windows, as well as their sizing and placement, depends on your orientation, view, desire for ventilation, and needs for daylight and solar gain. Orienting more of your windows towards the south side of your shop and placing them high enough that they are shaded by the eaves in summer, but allow lower-angle winter light to come in, will increase your ability to get free light and heat from the sun. If your goal is to take advantage of passive solar opportunities, make sure that you carefully research the type of glass that is in your windows and look for something with a high solar heat gain coefficient. Higher windows generally allow for benches and tools beneath them, and relatively windowless north walls may be a place to arrange wood storage or mechanicals.
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.