The only pre-wasing UI do is batiks which are dark andhave a great deal of colot. I do however - wash my quilts after they are put together and quilted to get out all that sizing that I used putting them together - and also the sizing that is on the fabric when you buy it

Just go for it. Sew! Use a color catcher with first wash

Go for it..I hardly ever pre-wash !!

Just sew and enjoy...I hardly ever prewash....

I never prewash. If it is going to shrink, let it all shrink together. If you are quilting with a white (very light) color and a color that might bleed, then you probably have to prewash the dark color that will bleed.

Get to stitchin'!

I would not prewash at this point -- if you buy the precuts wyou would not was them.

As arule, I don't prewash. However, I do prewash my reds and dark blues since I have had some sad experiences. I also prewash flannels since I have had wildly varied shrinkage even in the same fabric line.

everyone has their own method/opinion about washing or not washing. But lets look at it this way.
If you use an assortment of fabrics from different manufacturers and different qualities and you don't wash. There is a good chance some will shrink more than others.
Do you really want a puff looking quilt. If it were me. I would wash them all and precut the squares to the same size even tho it will take a bit longer.

You will be fine! Enjoy making your quilt!

I never prewash and, knock wood, have never had a problem.

no washing necessary