QuiltE

First of all ... great for deciding to have something built that works for you!!! Despite questions from others as to the end placement of your machine, you know what works for you, the constraints of how this fits into the rest of the room space,, and how it would "feel" for you to work there.

Here's a way to perfect your personalized work space in the design phase ... when I was designing a new kitchen years ago, the best advice I got was that as I did stuff in my old kitchen to mentally put myself in the new one. Where was I storing the cookie sheets? oops, the new design doesn't hold my monster sheet! Where are the dishes going after washing and then setting the table?. Convenient? or out of the way? etc. So do the same while you are sewing, and reaching for thread, the machine accessories. That was one thing I noticed ... didn't see any allotted space for small stuff like that.

I'm guessing the measurements/distances you are using are from other sewing set-ups or what you have been currently using. Otherwise, suggest you check with other machine cabinetry. You mentioned this is for sewing and computer. Looks like that central computer area could also be your cutting table too?

To me, it looks a little close to the wall for my personal comfort. We don't need a lot of space there, as for me, that just fills with clutter ... but we do have stuff that goes there ... scissors, pin cushion/magnet, pattern instructions, stitch ripper etc. Also, for me, I might feel physically too trapped on the right. To give more open space on top, a row of drawers below could do the trick, plus provide close-by storage for the accessories, thread etc. while opening a bit of personal physical space. Of course, you may not have space to let you move further to the left and into the room.

While you are not focused on quilts, it sounds like there are times you are doing them, plus there's a lot of bulk/fabric if you are working on a pair of pants or dress, so like the others, I would consider adding more space to the left of the machine. Already suggested, it's easy enough done with a flip up/down wing.

Structurally, will that open end to the left of the machine be solid/safe? A post or a wall under it would give support. If a full wall, you could put small shelves on it that get covered over when the wing is in the downward position. Or a bank of drawers could create the support plus give some more "local" storage. Can you tell that I'm always trying to max out extra space to the best advantage?

In the end ...the important thing is "you do you" and do what is best for you ... and take the suggestions from our communal peanut gallery with a grain of salt!!

GOOD LUCK!! ... take your time with the design process, so you can get it right for YOU ... the time you put into it will pay off in many happy hours in your personal space!