Seam first, or shrink first?

Hi!

Iā€™m using mercerized cotton that I know will shrink length-wise after washing. I think I should seam (cartigan) first, then wash & shrink. Any wisdom? And should I sew on the buttons before or after shrinking?

Thanks

:stuck_out_tongue:

I would seam it first to make sure it all shrinks the same. I think the seams will help that.

I usually put buttons on last to make sure I place them properly.