Exact sizing help
We have a travel trailer with a non-standard bed size (60x74 – an almost queen). I want to make a quilt that just fits the top with the main piecing, has a 12" drop, ad a 6" pillow tuck (finished size 84x92). It really needs exact sizing because I need to "box" the outside corners (the bed raises up for storage, and the box corners keep the bedspread from getting caught when we lower the bed). I intend on using a wool batting, and I would prefer using a jelly strip to cutting the strips from yardage. It will be fairly lightly machine quilted, maybe every 3-4 inches to keep it soft. How do I account for the shrinkage from quilting and from washing? I have never made a quilt to precise measurements! I know the batting generally shrinks 3-4%. Can I just make the quilt that much bigger (88x94.5)? I could make it even bigger than that (2 or so more inches in a border), quilt, serge the edges to keep everything neat, then wash it. If it was too big, I could trim before applying the binding. I know how to box the corners, and I do intend on doing that after the firstwashing (thank goodness for sergers!).
Sigh. Making the quilt will be fairly easy, but getting the measurements right is driving me nuts (and I’m very good at math!).
Pam