Squaring Up Blocks and Laying Out the Top
Okay. You've chain pieced your way through a stack of blocks. Some of them are beautiful. Some of them are a little wonky. We're going to fix the wonky ones now, before you sew them together, because it's a lot easier to square up one block than to fight a whole top later.
Why squaring matters
Blocks drift when you piece. Seams pull things a little off-square even when you were careful, even when your quarter inch was honest the whole way through. That's normal. It's not a sign you did something wrong. It's just what fabric does.
If you skip this step and sew uneven blocks together, the unevenness compounds. Row one is a little off, row two is a little off in a different direction, and by the time you get to row six your top has a wave in it that no amount of pressing will fix. Squaring now saves you grief later.
What you need
- A square ruler, ideally one close to your finished block size. If your blocks are supposed to be 12 inches, a 12.5 inch square ruler (finished size plus your seam allowance) is close to ideal. If you don't have one that size, your regular rotary ruler works, it's just slower.
- Rotary cutter, sharp blade. A dull blade will drag instead of cut and you'll end up sawing at the fabric, which is how you get slipped rulers and nicked fingers. If it's been a while since you changed the blade, change it now.
- A cutting mat big enough that you're not hanging block edges off the side.
The actual process
Lay your block right side up on the mat. Find the center, either by pressing lines or just eyeballing it if your block has an obvious center point like a seam intersection.
Line your ruler up so the block's finished size lines fall right where they should, with an even seam allowance around every edge. This is where a lot of people get impatient and just trim to whatever's closest. Don't. Take the extra fifteen seconds to actually align it.
Trim two adjacent sides first. Then rotate the block, line the ruler up again using the sides you already cut as your reference, and trim the other two.
Do this for every single block, even the ones that look fine. Especially the ones that look fine, honestly, because that's exactly when people skip the step and get burned.
A word on losing size
You will lose a little fabric doing this. If your blocks are coming out consistently smaller than your pattern calls for after squaring, that's useful information. It usually means your seam allowance was running a hair wide somewhere back in the piecing. Worth checking before you cut your next project's pieces, not something to panic about on this one.
Laying out the top
Once your blocks are square, get them all out where you can see them at once. Floor, design wall, guest bed, whatever surface you've got. I use my living room floor most of the time. Alice has learned to walk around the quilt instead of through it, mostly.
Step back and actually look at it before you commit to an arrangement. This is the moment to move blocks around, rotate ones that read a certain direction, and notice if two high-contrast blocks are sitting right next to each other in a way that makes your eye jump.
I'll be honest, I don't have a system for this part. Color and layout is a shrug for me. I move things around until it feels right, sometimes I let Alice pick the arrangement, and I've stopped pretending there's a rule I'm following. If you want real guidance on layout theory, that's not going to come from me. I just go by feel.
Once you like the arrangement, take a photo on your phone before you touch anything. You will forget which block went where the second you start stacking them to carry to the machine. I promise you will. Take the photo.
Keeping the piecing order straight
Stack your blocks in piecing order, row by row, and pin a scrap of paper to each stack with a number on it. Row 1, Row 2, and so on. It feels like overkill until you've mixed up two rows and had to unpick a seam to figure out where things went. I've done that. It's not a fun twenty minutes.
I've got a spreadsheet at home where I track quilt ideas I want to make someday. Forty-one rows on it right now. I've actually made three of the forty-one. I'm fine with that ratio, but the reason I keep the spreadsheet at all is the same reason I'm telling you to number your rows and take a photo of your layout. My brain does not reliably hold onto plans. Yours might be better than mine. Write it down anyway.
Before next time
Square up every block in your stack and lay them out in the arrangement you want. Take that photo. Next lesson we'll sew the rows together and start dealing with the seams where rows meet, which is its own small headache we'll handle one at a time.