Tartan

I think that the patterns will probably stay the same because as others have mentioned, there are a lot of different width in fabric now. It is a good reminder to check before you buy though. I guess it is a sign of the times...higher prices and less fabric. Bummer and don't you hate those giant selvages?

eastermarie

I always use 40" wide rule myself. Then if its over , it's a bonus.

bearisgray

Some 42 inch fabrics have been around for at least 20 years.

One just needs to CHECK the width and not assume any particular dimension.

If one is a washer, one needs to factor in that SOME fabrics shrink widthwise instead of lengthwise.

Some fabrics don't shrink at all - a very few seem to "spread out" - some shrink only in one direction - some shrink in both.

I can't tell by looking at a piece what it might do.

QuiltnLady1

I normally buy the fabric when I find it and then try to find a pattern (or block) that will look good with it. When figuring how much fabric I need to buy, I assume 40" in my calculations. If I am buying for a pattern, I always add 1/4 to 1 yard extra to accound for shrinkage or if the calculations are based on a 42"-44" width. I like my borders to be LOF with no seams (unless they are pieced, or the fabric pattern requires WOF) and if the pattern maker figures on a 42-44" width I may not have enough for the blocks after I cut the borders.