I tend to make large lap/twin or wall quilts. It's a win-win. I get to make something useful and beautiful. Plus my quilter's ADD is satisfied(i.e. I get to move on to the next one sooner). :-)

Lately, I've made mostly twin sized quilts. I have no desire to quilt anything larger, on my DSM. :p

I make quilts in all sizes. Usually, after a long stint with a queen/king size, I will do a couple of baby/lap sized easy quilts to relax with. I always have a list of projects to work on -- the hardest part is choosing what to do next!

I make quilts in all sizes, from baby quilts to king sized. I have found that my girls, who all have queen size beds, prefer the big ones....100x100. That way when they are in bed and snuggling under the quilt with their mates, everything stays covered and warm. I have been making some utility quilts with 10" squares of scrap fabric, double batting, and whatever I can find in the stash for the backing. The double poly batting makes for a very warm quilt and the girls love em! I do all my own quilting on my Janome 6600.

I like to make table runners! they are easy and less fabric and doesn't take as much room to store. It seems everyone loves to get one of these that are home made!

I make all sizes, too. Most of the baby quilts I make are bigger--around 50-62. I do not know what they end up that size...it just seems like that is the size I make them. I do how ever want to start making baby quilts smaller. Till I can buy the packaged 45 x 60 batting, and not be cutting up bigger battings for them.

I tend to start with an idea for a quilt and just wing it. This one I started with just making little 4-patches. Then later I decided to use them as the corners of 9-patches, and it just went from there and I really liked the result. Not all are as good as this.

I have made two or three that are approximately 90 inches square...I have made one that was 87 inches square..and have made others that fit a full bed but probably most people would use as a twin. I don't like a lot hanging down so I know I am different in that.

Queen-sized guilts or baby quilts. Most patterns come out nicely just adding additional rows of patches to achieve the size you desire. Graph paper is helpful.

I make mostly lap/nap size quilts as I hand quilt and work full time, so it takes me usually about 8-10 months to complete one. I made one full size bed quilt and worked really hard on it and it took me 11 months to complete. After that, I realized I had to be realistic about my time and settled on the lap/nap size.

When I first started quilting (30+ years ago), I mostly did lap quilts (45x60). They were a good size for me to learn the basics, plus they weren't too bulky to quilt on my DSM. Then I went on to twin sizes as my kids grew up, then I did larger ones, when I found a local LA'er. 6 years ago, I got my own LA. Now, I mostly do K-Q sized quilts, but will do other sizes as needed for baby showers and so on.
I personally HATE square quilts (beds aren't square, are they?), and will often modify a pattern to change the square quilt to rectangular. And I really like my quilts extra long, to cover the pillows like a comforter. I've only done one "wall hanging" sized quilt - it's hanging on my quilt rack, next to some antique quilts I've found. Not hanging on the wall. Not really sure why, except maybe I can't figure out how to hang it up?!?

I used to make full size and queen size quilts and then we got a king size bed so now I am working on 2 king size behemoths. Other than that, I usually make twin for DGD or a wall hanging or two.

I must confess, I haven't made a bed-sized quilt since 1971. For functional quilts, I make mostly lap/couch size in the 60" to 72" range, always square because that's how I prefer to design. My art quilts range from quite small (mounted on artist's canvas) up to lap quilt size; the 30 to 48 inch range is my favorite. I like my quilts to be seen, not kept where they are only used in the dark and with closed eyes. :o

Traditional quilts, I've made all sizes. There's 2 beds in our house and 2 in my daughters. They all have several options. There's plenty of lap quilts, table runners, placemats, large wall hangings. I've made things for my extended family and some friends.

I've transitioned to art quilts, almost exclusively wall hangings. Sometimes the size is determined my the materials. I use quilter's grid often, it's 42" wide (I think), so, one measurement is less than that. I've determined size by the width of fabric to use on the back-no pieced back. And I've a stash big enough to never buy another piece of fabric, so it's got to be pretty important to buy 108" wide fabric. Most wall space isn't especially large so 3x4' is a large wall hanging.

Now I'm selling quilts. Things under $65 sells better, with -$commission that's about 12x12" mounted. I too have been mounting on canvas, so I figure about the size then find a canvas close to that size and that's what it will be. The same with foam core and picture frames-the wall hanging will fit a standard size to avoid custom costs.

Sometimes, rarely, I'll have a design that tells me what size it is when the design statement is complete, then it hanges as a quilt-no custom fitting.

These are my reasons. Works for me

I've made mostly lap sized quilts, but my "lap size" is actually somewhere between twin and double, lol. They will cover a double bed with no drop or a twin with about a 6-8" drop. I make them big because I want it to be big enough to cuddle with the hubby from shoulders to underneath my feet. I've made one queen quilt with about a 8-10" drop for my bed and am starting another one for my bed. I've made lots of crib sized baby quilts to give as gifts and a few wall quilts, but mostly oversized lap quilts.

It looks like the consensus is mostly lap size quilts and I probably do large lap sizes to twins most of the time too. I have made a few that will fit our queen bed and the double in the spare room plus quite a few wall hangings so I can change them out seasonally. And for the babies smaller ones of course. I quilt my own on my DSM so no king sized quilts for me. I actually quilt all my queens by hand. I don't think I could wrangle all of that bulk like some of you brave hearts do. I'm amazed at the very thought of that!

I like your math! Do you do different blocks or do you stay with the tried and true? It certainly makes it easier to keep it the same size.

Thank you everyone for your wonderful and informative comments and information. We are individuals aren't we. And our likes and artistic abilities really come to the front when deciding what turn or twist our inspired quilting takes us. I feel fortunate to be a quilter and to be part of such a marvelous group of talented folks.

This past year, I've been working on all queen sized or over-sized queen quilts. I do quilt some smaller stuff on occasion for a quick gift.