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Granny square blanket pattern: plan and join motifs

Make 20 matching solid squares, each with 4 rounds. Arrange them 4 across by 5 down. Sew the squares into strips, then join the strips.

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Joined solid squaresUS termsHook: 5 mm (US H-8), or the size that gives you gaugeSize from your washed swatchEm portuguêsDK or worsted yarn

Know these stitches: double crochet

The finished granny square blanket.

Materials and yarn planning

Yarns we’ve reviewed that suit it: Lion Brand Basic Stitch Anti-Pilling yarn, Lion Brand Heartland yarn, Lion Brand Wool-Ease DK yarn. For the hook, choose by size and handle.

To buy for a set, make one complete motif first and weigh it: multiply by the number you need, add a little for joins and finishing, and divide by the ball weight on the label. A rectangular swatch cannot predict yarn for this shape. With a total length instead, the yarn-length-to-balls calculator gives the ball count.

Finished size and gauge

Let L be a washed square’s side. The arrangement is approximately 4L wide by 5L long before seam allowances. Measure a joined pair to estimate how much your seam changes the dimensions.

The shape of the granny square blanket

The shape of the granny square blanket.

Sizes from your swatch

Example: a washed square 10 cm a side. Type the side of yours over it to see your counts.

Common blanket sizes, divided by the side of one washed square.
SizeWidthLengthSquares acrossSquares down
Crib114.3 cm (45 in)152.4 cm (60 in)1115
Lap91.4 cm (36 in)121.9 cm (48 in)912
Throw127 cm (50 in)152.4 cm (60 in)1315
Twin bed167.6 cm (66 in)228.6 cm (90 in)1723

Rounded to whole squares. Seams add a little; measure a joined pair before you commit.

The gauge calculator compares your swatch with the pattern. A stitch name you do not know is in the abbreviation chart; a UK pattern’s names are in the US/UK term reference.

The pattern

Count rows for this pattern

Make the squares

  1. Follow the solid-granny-square pattern through Round 4. Each square has 60 double crochets and 4 chain-2 corner spaces.
  2. Make 20 matching squares. Weave the individual square tails, then wash and dry all squares by their yarn labels.
  3. Lay out 5 rows of 4 squares. Photograph or sketch your chosen arrangement for your own reference before lifting any square.

Join without stretching

  1. Match corner spaces and corresponding stitch tops. Sew the 4 squares in the first row into a strip using the flat-seam method.
  2. Join the remaining rows in the same way. Align each strip with its neighbor, starting at an internal square junction.
  3. Sew between strips, keeping corresponding junctions together. Work toward the outer edges without gathering the joining yarn.
  4. Weave the joining tails. Inspect the front, back and every corner junction. Add a border only if you want one and the joined body lies flat.

Check the work

4 × 5 = 20 squares. Each square has the same round count, edge count and finished measurement before joining.

Double crochets per square, by round12 · 28 · 44 · 60
  • If one strip is longer, compare square dimensions and seam tension separately.
  • If a central junction forms a hole, check that the corner spaces were joined rather than skipped.

Updated . Stitch counts checked row by row; we haven’t crocheted a sample of this one yet. How the patterns are checked. Keep your yarn label, hook and swatch on the printable project worksheet.