How to knit a mitered square

Abbreviations: k: knit, sl1 pwise: slip1 stitch as if to purl, k2tog: knit 2 stitches together, psso: pass slipped stitch over stitch that was just worked & drop it off the needle.

To create a mitered square you are going to cast-on double the number of stitches you want one side of your square to be plus one stitch. For my square I cast-on 23 sts.

My 23 cast-on stitches.

Row 1: knit all stitches

Even rows will be decrease rows and to do them you will take your total number of sts and subtract 3. For my square that would be 23-3=20. Next divide your # in half.

This will give you the number of sts before & after the decrease. So for my square it would be 10 sts, 3 sts for decrease, 10 sts.

Row 2: knit until st before decrease. For my square I knit 10 sts.

Next slip 1 st as if to purl then knit the next 2 sts together. Finally take the st you slipped & pass it over the last st you knitted & drop the slipped st off the needle.

To finish the row knit the remaining sts which should be the same amount as before the decrease. Each decrease row decreases your sts by 2 sts. So for my square I now have 21 sts.

You will keep repeating the below rows until you have 3 sts left on your needles. Row 1: Knit all sts, Row 2: k until st before dec, sl 1 st pwise, k2tog, psso, k remaining sts.

knit row (21 sts)

Decrease row: k9, sl1pwise, k2tog, psso, k9 (19 sts)

knit all sts (19 sts)

Dec Row: k8, sl1pwise , k2tog, psso, k8 (17 sts)

knit all sts (17sts)

Dec row: k7, sl1 pwise, k2tog, psso, k7 (15 sts)

knit all sts (15 sts)

Dec Row: k6, sl1 pwise, k2tog, psso, k6 (13 sts)

Knit all sts (13 sts)

Dec Row: k5, sl1 pwise, k2tog, psso, k5 (11 sts)

knit all sts (11 sts)

Dec Row: k4, sl1 pwise, k2tog, psso, k4 (9 sts)

knit all sts (9 sts)

Dec Row: k3, sl1 pwise, k2tog, psso, k3 (7 sts)

knit all sts (7sts)

Dec Row: k2, sl1 pwise, k2tog, psso, k2 (5 sts)

knit all sts (5 sts)

Dec Row: k1, sl1 pwise, k2tog, psso, k1 (3 sts)

knit all sts (3 sts)

Dec Row: sl1, k2tog, psso (1 st)

Cut yarn and pull through last stitch on needle & tie off. You now have a mitered square.