We had a home built 10 years ago and it had a 4 car attached garage. I suggested to my husband that it would make a wonderful sewing room. He told me to go for it. It extends past the front of the house so there are walls on 3 sides of the room all with nice large windows. The carpenters added extra outlets all around the room about 40" off the floor so all I have to do is reach over the tables to plug things in.

I'm not as young as some of you and have had all sorts of arrangements for threads and fabric, from peg boards to plastic boxes and open shelves. (still have some of those) Too much dust accumulated on threads that were on pegboards. They are now stored in the stacks of plastic drawers. Some are for sewing, others for serging and still others for embroidery. Other drawers have misc. small sewing items. The drawers fit neatly under two 8 foot home made tables used for 2 sergers and 2 embroidery machines. They were made to accommadate my short stature. (5'2")Now my elbows rest comfortably on the table. The chairs are low enough so that my feet are flat on the floor. (ergonomically correct)

There is also an 8 X 12 foot design wall covered with fleece. The fleece covers insulation fibre board so I can pin into it as well.

As someone else said about the fabric in boxes you have to keep moving boxes to get to the bottom one. It was a huge expense but I ordered 4 of the big metal storage cabinets from an office supply with 5 shelves and double doors that display everything at a glance. Before loading them up we cut a thick piece of plywood and added wheels for each of the cupboards. One holds quilting, one is for garment sewing, one for home dec and the other holds misc. and extra guides and threads for my long arm quilting machine.

The cutting table is from the sewbrite people and has a huge cutting mat. I've arranged the cubicles so I can sit in a drafting chair to sew if I want to alternate cutting and sewing quilt blocks.

My husband and I share one end of the 20 X 40 foot room for our computers and office supplies. We are both retired and spend a lot of time in this room. People that visit are awed by the size of the workroom until I tell them that to clean the floor it's like cleaning eight 10 X 10 foot rooms.
No matter what size the room we still have problems finding just the right place for everything. I think we could take a lesson from some of you who have condensed everything into smaller quarters.

My machines are an industrial straight stitch, industrial hemming machine, a Pfaff 7570, Brother Ult2001, Brother Inn-ovisD. My sergers are a very old Singer (3 thread), Pfaff Hobbylock (5 thread) and an Elna Coverlock. I added a Gammil longarm quilting machine a few years ago.

About 10 years ago we had our house built after we retired. It came with a 4 car attached garage. I had them finish it as a sewing room with windows instead of garage doors plus extra outlets all around the room above table height so I don't have to crouch on the floor to plug and unplug.

Depending on my mood or what I'm making, garments,home dec, embroidery or quilts, all the machines get used frequently.

I have 5 sewing machines,3 sergers and 1 longarm quilting machine.