Your garage workshop plans must be tailor made by you to fit the space you have. At the same time it helps to look at how other woodworkers set up their own shop.
The layout shown here is just to show you some of the things I've learned while setting up and working in my shop. Using the equipment found in most shops I laid this out with a dual purpose in mind for the floor space. Since it is in a garage I'll assume that occasionally you'll need to make space for the family car.
Since this wood working shop layout is in a garage the machines were lined up around the wall and then moved to the center when in use. (Equipment dollies are available for most machines and they are well worth the investment.)
The machines that create the most dust were placed as close to the center of the garage as possible along with the second most important machine...the dust collector. The close proximity to the dust collector makes the dust collector more efficient and it also eliminates the necessity of stretching the dust collector hose all over the shop.
Placing a workbench behind the center of the work area allows the workbench to be pivoted and used as a outfeed table for the table saw. I've also started using one of my homemade router tables in front of the table saw when I'm cutting full sheets or long lumber. This way I get the extra support I need without having to buy special equipment that gets in the way when I'm not using it.
Try to lay out your shop so the items you make will flow through your shop. Plan each project so you're not constantly walking from one end of your shop to the other. It may be worth your time to move some of your machines around before starting your next project.
Buy only the machines that you need. It's tempting to buy woodworking machines when you run across a bargain but sometimes it can turn into no bargain at all if you can't use it for what you normally make.
As an example, I got a great deal on a second wood lathe several years ago. It was a good size floor model that not everyone could use because it ran on 3 phase power. I've never used it, I seldom use the first lathe I bought, and now they're both in storage. So much for bargains. I would have been better off buying another router table instead.
I hope this helped with your own garage workshop plans!