There are benefits to either approach. Sharing a common wall with your house can require some careful soundproofing but can reduce heat loss and exterior finishing costs like siding. A shop located in an addition is more likely to be allowed to have living space or storage space above it, and it may be easier to make use of the existing plumbing and electrical and heating systems of your home to service your shop space. Another advantage of an addition is not having to run to an outbuilding in minus-30-degree weather or a summer downpour.
A while back, I reached for my two containers of epoxy and noticed that the resin in one container had crystallized exactly like honey that’s been in the cupboard too long. The solution is exactly the same too: Set the container in a bowl of hot tap water. After about 15 minutes, I emptied the container and refilled it with hot water. After about a half hour, the epoxy regained its normal consistency. Good as new! — Ken Holte
Instead of using a container to mix a small amount of epoxy, just make a mixing surface on your workbench using painters tape. Simply lay down strips, overlapping the edges so the epoxy doesn’t get on your bench. When you’re done, peel off the tape and throw it away. This mixing surface will work for more than just epoxy, you can use it for wood glue or any other material you need easy access to while working on a project.
You may want a garage door if you will need to access your shop with large workpieces or tools, or if you or future owners will ever want to use the space to park a vehicle. Garage doors are notoriously drafty, however, so if you think you can live without one you will probably be warmer. Instead, you could opt for out-swinging double doors. In a small shop you can, at a pinch, rip longer lengths of lumber by feeding the material out of either a strategically placed door or window.
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.