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.
It has made me really think about doing things in an order which optimizes the switching around of machinery. One thing I did do which has really helped and that I would add to your list is SOUND PROOFING! Didn’t mean to yell there.. lol. Sound proofing has has allowed me to keep the workshop operations from bothering the rest of the family when I am in my man-room.
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.
Line ’em up — Most other woodshop machines work harmoniously when lined up along the walls, where they are easy to power and connect to dust collection. The amount of space left between these tools depends on the amount of room you have, the size of the stock you work with, and whether or not adjacent tools have tables at the same height. You can always pull a machine away from the wall if additional space is needed. Clearly, these options are not the only possibilities and are contingent upon the mix of machines you have, the shape and size of your shop, and the kind of work you do. The bottom line is if the layout works for you, then that’s the best for your shop (and don’t let anyone tell you any different!).
Softwood is most commonly found in the regions of the world with lower temperatures and is typically less durable, lighter in weight, and more vulnerable to pests and fungal attacks in comparison to hardwoods. They typically have a paler color and a more open grain than hardwoods, which contributes to the tendency of felled softwood to shrink and swell as it dries. Softwoods usually have a lower density, around 25-37lb/cu ft, which can compromise its strength. Density, however, does vary within both softwoods and hardwoods depending on the wood's geographical origin and growth rate. However, the lower density of softwoods also allows it to have a greater strength with lighter weight. In the United States, softwoods are typically cheaper and more readily available and accessible. Most softwoods are suitable for general construction, especially framing, trim, and finish work, and carcassing.
In general, a table saw requires at least eight feet in front and behind to accommodate standard sheet goods and four feet side to side. A work table should provide four feet clearance on all sides, and pathways between tables, benches and storage units should be three feet wide. Proper clearance will allow you to move about with ease while you work.
If your shop is long and narrow, option 2 provides maximum space to the left of the fence for handling large sheets of plywood. If you often work with full sheets of plywood or other sheet goods, you might want to build the table saw into an extension table surround, as San Diego woodworker Pat Curci did in his small shop (see the photo). The surround offers support for large panels, as well as provides an ample work surface near the saw.