I do plan to have a minimum 14 foot table and a big machine no smaller than a 26 throat.

Do you leave your longarm table set up fully? I was thinking I would need like a 20F by 20F room?

I wan't to be able to have my office in the room as well, also my regular sewing machine and embroidery machine, and all my fabrics, cutting table and ironing table.

Ashley - I've had 2 different quilting frames and you DO leave them up. So far I haven't found one that would adjust sizing easily. Think about it -- they're a HUGE machine, going 1000sss of stitches per inch...they need sturdy. A frame that would break down in size easily would be flimsier. Course, I could be proven wrong!

As for 20 by 20 -- yes -- I'd LOVE to have that size!!!

I see you live in Canada. In addition to heating/cooling a separate building, think about having to go outside in the cold and shoveling a walkway out there.
Too bad we can't just build our dreams and forget about reality. :-D

I think my room is 14' x 22'. I would love for it to be wider so I could fit more in it! lol 20' x 20' would work well, giving you room to set up a small office space, room for fabrics, sewing machines, cutting table etc. I have all that in mine, except just one LA and one sewing machine which I leave set up all the time.
I do unplug them when not in use.

I would love a larger room. Mine is 12 x 14 and while I do have a closet in that room, it holds off season clothes, it would be nice to have all my sewing stuff in one room. My sewing/quilting room is 10 x 10 and it is literally jammed packed without much room to spare. Ideally, I would like a room 20x24, with the Tin Lizzie at one end, my sewing/cutting table at the other end and lots of windows and storage. I know this will probably never happen without winning a lottery, but, one can dream!

I am not a LAQ but if I were, I would want a room on the ground floor in my house that was as large as possible to accommodate built in storage for batting/threads/pantos/marking tools/samples/books and multiple customer projects awaiting quilting/billing and mailing information and files for the business, etc and to trim down quilts afterwards. I would want some natural light. I would not want a separate building but I would want a customer entrance and a small area for them to sit and discuss quilting patterns etc.

I would also want a radio or television in the room.

The best idea would be a set of pocket doors connecting the studio to the rest of your house so the room doesn't feel claustrophobic when you are working.

I have a detached shop at the back of our house where it is dedicated for my quilting only and crafts. I have a small fridge, a TV, a radio, phone and air conditioner. My husband refuses to put in a bathroom. He said if he does he will never see me. It is nice to have your own place by yourself when it comes to quilting.

My avatar shows my longarm room. My sewing room is our 3rd bedroom and wasn't large enough for my longarm. We enclosed our screened in back porch that housed the washer/dryer and freezer. My frame is on casters so I can roll it out when I do pantographs. It works for me and we were able to do all the work ourselves for about $2100.

I couold be wrong but I had a brother-in-law in Saskatchewan who ran a business office out of his home. It had to be a definite space with a door to close it off to the rest of the house. His was in the basement. I ran a simple google search and found this information - look at the link there are specific criteria thses days to use a home space for your business.
http://www.bookkeeping-essentials.co...-expenses.html

Good luck.