The standard option for a shop floor is a concrete slab. You’re probably not going to go to the trouble of creating a basement beneath your shop, although it is possible. The weight of most woodworking machines suggests that a concrete floor is the most solid and durable substrate available. It has the potential to be used as thermal mass to store heat from your heating system or from the sun, but it can be tiring and hard on your body to be standing on concrete all the time. You can add a vapour barrier, 2x4 sleepers and a wooden floor above the concrete to ease the tendency of the floor to strain your feet and back, or you can add anti-fatigue mats in key areas where you’ll be standing for longer periods.
A landscape designer friend of mine tells a story about the college he went to. During his years there, the university embarked upon an ambitious building plan, adding several large structures around the main quad: a dorm, a chemistry lab, and a couple of others. The look of the place, which had remained unchanged for a century, was suddenly transformed, as glass-and-steel modernist structures were interspersed with the earlier ivy-covered stone Victorian-Gothic.
This is the one tool in the shop that provides the greatest opportunity to save money, if you are willing to purchase a well made, light duty machine, and take lighter cuts. In the past I have used General 14" planers that can hog off serious cuts all day long. The problem is that these professional units cost over $5000, and they would crush my buddy as we haul them down the stairs (note: don’t be the guy on the bottom). After doing a fair amount of research, I purchased the Dewalt DW735 13" thickness planer. The unit came with a good manual, and was in a good state of tune. It is light enough for me to carry around the shop without excessive grunting, so that made it very simple to install. The planer has a significant internal fan-assisted chip ejection system. The chips are catapulted out of this planer, so have your dust collector running before you run stock through it. I now have to make more cuts at a lighter cut depth, but I saved about $4500, which makes my budget happy. The planer makes clean cuts, and has two speeds. I don’t see a reason for the two speeds for my type of work, but there is a faster feed rate should you choose to use it. Knife changing is simple and quick.
The thickness planer can joint a board's face. On this simple jig, the stock is supported by twin rows of wood screws driven into a platform and adjusted to meet the varying clearances on the underside of the board. The stock rides the sled cup side up. Slide the board slightly sideways to adjust the screws, then seat it firmly on the screw heads for planing.
Some of the most important decisions in laying out a shop involve the placement of basic machines, such as the table saw and jointer. Deciding where to put them depends in part on the scale of woodworking you do, which determines the clearance area around these machines if you need to handle long stock or large sheet goods. You’ll also want to consider work flow to avoid an excess amount of running around the shop to accomplish tasks, as well as how to power your machines without turning your shop into a snakepit of extension cords.