Finished Size

Each square: 8 inches x 8 inches square (20.5 x 20.5 cm)
Rug before felting: 21 inches x 27 inches (53.5 cm x 68.5 cm)
Rug after felting: 16 inches x 25 inches (40.5 cm x 63.5 cm)

From the pattern description

This felted rug starts with just six garter stitch squares, each knit diagonally. The squares are then sewn together and crocheted around the outside edge. Each square is portable, making this a perfect project for knitting on the go.
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This pattern is also available from Canadian Living online.