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Strips & logs · Beginner · 15" finished

15 inch Two-Tone Half Log Cabin quilt block

Cutting chart, piecing steps and yardage for a Two-Tone Half Log Cabin block that finishes at 15". The block is a 5 × 5 grid and each cell finishes at 3".

Finished block 15" × 15". Unfinished 15 1/2" × 15 1/2".

Cutting chart for one block

FabricCutSizeThen
Main1 rectangle15 1/2" × 3 1/2"–
Main1 rectangle12 1/2" × 3 1/2"–
Main1 rectangle9 1/2" × 3 1/2"–
Main1 rectangle6 1/2" × 3 1/2"–
Background1 rectangle12 1/2" × 3 1/2"–
Background1 rectangle9 1/2" × 3 1/2"–
Background1 rectangle6 1/2" × 3 1/2"–
Background1 square3 1/2" × 3 1/2"–
Accent1 square3 1/2" × 3 1/2"–

How to piece it

  1. Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
  2. Lay all the pieces out as in the diagram. The block is a 5 × 5 grid, and each cell finishes at 3". Sew neighbouring pieces into sections, then the sections into rows, pressing seams in opposite directions from row to row.
  3. Join the rows. The block should measure 15 1/2" now and 15" once it is sewn into the quilt.

Yardage for a quilt of 15" Two-Tone Half Log Cabin blocks

Quilt sizeBlocksFinished sizeMainBackgroundAccentBorder & bindingBacking
Baby2 × 3 (6)36" × 51"7/8 yd3/4 yd1/8 yd1 yd3 1/2 yd
Lap3 × 4 (12)51" × 66"1 5/8 yd1 1/8 yd1/8 yd1 1/8 yd4 1/4 yd
Throw4 × 4 (16)66" × 66"2 1/4 yd1 5/8 yd1/4 yd1 3/8 yd4 1/4 yd
Twin4 × 6 (24)66" × 96"3 1/4 yd2 1/4 yd1/4 yd1 1/2 yd6 yd
Queen6 × 6 (36)96" × 96"4 7/8 yd3 1/4 yd3/8 yd1 7/8 yd8 3/4 yd
King7 × 7 (49)111" × 111"6 7/8 yd4 3/4 yd5/8 yd2 1/8 yd10 yd

Blocks side by side with a 3" border, 2 1/2" binding, 42" usable width and 10% extra.

What a lap quilt looks like

3 × 4 blocks, 51" × 66" with border.

This diagram uses plain colors. To see the quilt in your own fabrics, with sashing or on point, use the tool below: tap a fabric and choose a photo.

5" Two-Tone Half Log Cabin7 1/2" Two-Tone Half Log Cabin10" Two-Tone Half Log CabinAll Two-Tone Half Log Cabin sizes

See it in your own fabrics

1. Your fabrics (tap a fabric, then choose a sample or your own photo)
2. Block
3. Quilt size
4. Block size
5. Setting

What to buy

FabricYardageCut

Based on 42" usable fabric width, 1/4" seams and 10% extra. Your photos stay on your device.

Questions

What do I cut for a 15 inch Two-Tone Half Log Cabin block?

1 main rectangle at 15 1/2" × 3 1/2"; 1 main rectangle at 12 1/2" × 3 1/2"; 1 main rectangle at 9 1/2" × 3 1/2"; 1 main rectangle at 6 1/2" × 3 1/2"; 1 background rectangle at 12 1/2" × 3 1/2"; 1 background rectangle at 9 1/2" × 3 1/2"; 1 background rectangle at 6 1/2" × 3 1/2"; 1 background square at 3 1/2" × 3 1/2"; 1 accent square at 3 1/2" × 3 1/2".

What size is the block before it is sewn into the quilt?

15 1/2" square. It finishes at 15" once the seams on all four sides are sewn.

How much fabric for a throw quilt of 15 inch Two-Tone Half Log Cabin blocks?

16 blocks make a 66" × 66" quilt. Buy 2 1/4 yd of main, 1 5/8 yd of background, 1/4 yd of accent and 1 3/8 yd of border & binding, plus 4 1/4 yd for the backing.