How to Knit a Blanket

The finished result: How to Knit a Blanket
  • Difficulty: Easy
  • About 12 hours
  • 6 steps

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Steps written out by Crafting Step by Step from WOOLANDTHEGANG's video (opens YouTube) (12:38). Published .

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Step 5 of 5 inKnitting for Absolute Beginners

This is how Wool and the Gang teaches absolute beginners to knit a full blanket: square by square. Each square uses one stitch (garter), measures roughly 8 inches when finished, and takes maybe 30 minutes to knit. Make 35 of them and you have a generous throw.

You only learn three things here: how to cast on, how to knit every row, and how to cast off. The video also walks through joining the squares so the seam disappears.

What you need

  • Chunky or super bulky merino yarn (any brand works, not only the kit)
  • A pair of 12mm or 15mm knitting needles
  • A tapestry needle and scissors
  • A tape measure or ruler

Why squares beat one giant panel

A throw knit in one piece means a long circular needle, a heavy lump of fabric in your lap by week two, and a dropped stitch that can sit 40 rows down before you spot it. Squares fix all of that. Each one fits in a tote bag. A mistake costs you one square, not the blanket. And you finish something every half hour, which keeps you going through January.

How much yarn for each size

Each 8 inch square takes about 50g of chunky yarn. Work out your layout first, then multiply.

SizeLayoutSquaresYarn (approx.)
Baby blanket4 x 5201 kg
Lap blanket5 x 6301.5 kg
Sofa throw5 x 7351.75 kg
Bed topper7 x 8562.8 kg

Buy one extra ball for seams. Dye lots vary, so buy it all at once.

Keeping every square the same size

Your tension on square 1 will not match square 30. Hands loosen up. The fix is to stop measuring and start counting. When your first square reaches 8 inches, count the garter ridges (each ridge is two rows) and knit exactly that many on every square after. If a few still come out uneven, wet them, pin them to size and let them dry. Blocking evens out more than you would expect.

Joining: whip stitch or mattress stitch

The video uses an edge-to-edge stitch through the garter bumps, turning every other square 90 degrees so the ridges alternate. That hides the join and gives a basketweave look. A whip stitch over the edges is faster and leaves a small raised ridge. A mattress stitch is the flattest, near-invisible option. Pick one and use it for the whole blanket.

Planning the layout

Lay every square out on the floor before you sew a single seam. Two colours in a checkerboard is the easy win. Three or more colours look best placed at random, then nudged so no two matching squares touch. Take a phone photo so you can rebuild the layout after the cat walks through it.

Common mistakes

  • Tension drift. Count ridges, not inches, from square 2 on.
  • Curling edges. Garter lies flat on its own. If a square curls, it is usually a tight cast-off. Keep it loose.
  • Leaving all the ends for last. Seventy tails at the end is a miserable evening. Weave in ends as each square comes off the needles, keeping one long tail for sewing.

Want a smaller first finish? A ribbed hat takes one ball and a weekend.

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Quick answer

Knit a blanket from 35 simple garter-stitch squares. An easy project: about 12 hours. Materials cost about $25 to $50. The 6 steps: make a slip knot, cast on 14 stitches, knit the first row in garter stitch, knit every row until the square is 20cm, cast off the stitches and sew the squares together.

Step-by-step guide

6 steps, about 13 minutes. Tap a picture to jump to that step. Your progress saves automatically.

Tick each step off as you go.

  1. Step 1: Make a slip knot

    Watch this step · 1:20

    Pull about a six-inch tail of yarn off the ball. Loop the yarn around two fingers to form a small cross, then pull the working yarn through the loop you just made. Tighten by pulling on both ends.

    Slide the slip knot onto your knitting needle and pull snug - tight enough to stay on the hook, loose enough to slide along it. That's your first stitch.

    Tip:

    Your slip knot should slide along the needle without being so tight it can't move. Too tight and you'll fight every stitch; too loose and it falls off.

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  2. Step 2: Cast on 14 stitches

    Watch this step · 2:20

    Hold the working yarn in your hand and wrap it around your thumb so it forms a small loop sticking up like a pointer. Slide the empty needle under the loop, then lift the needle straight up to slip the loop onto the needle. That's one cast-on stitch.

    Repeat 13 more times until you have 14 stitches on the needle. Fourteen makes a square about 7.5 inches wide; if you want bigger or smaller squares, adjust the count.

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  3. Step 3: Knit the first row in garter stitch

    Watch this step · 4:00

    Hold the cast-on needle in your left hand and the empty needle in your right. Insert the right needle into the front of the first stitch on the left needle, going from front to back. The needles should cross like an X.

    Wrap the working yarn under and over the right needle, then pull that loop through the stitch and slip the old stitch off the left needle. That's one knit stitch. Repeat across the whole row - 14 stitches total.

    Tip:

    Stay near the tapered tip of the needle when you knit. If your stitches are too far down the shaft, they'll feel tight and the loops can slip off.

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  4. Step 4: Knit every row until the square is 20cm

    Watch this step · 6:40

    Turn the work, swap the needles between hands, and knit the next row exactly the same way. The fabric you're making is called garter stitch - every row is a knit row. The little bumps you see at the top of each row are the previous row's tops; knit into the V-shape below them, not into the bumps.

    Keep going until your square measures about 20 cm (8 inches) tall. The fabric will look uneven for the first few rows but evens out as it grows.

    Tip:

    If you lose count, lay the square flat and measure with a ruler. The point is to get a roughly square shape - exact stitch count doesn't matter as long as you started with 14 and didn't accidentally drop or add any.

    Back to all steps

  5. Step 5: Cast off the stitches

    Watch this step · 8:40

    Knit two stitches as normal so they sit on the right needle. Use the tip of the left needle to lift the first stitch up and over the second one and off the needle. You've cast off one stitch and one stitch remains on the right needle.

    Knit one more so two stitches are on the right needle again, then lift the previous stitch over the new one. Continue across the row. When one stitch remains, cut the yarn six inches from the needle, pull the tail through that last loop, and tighten.

    Tip:

    Keep the tension loose during cast-off. Tight cast-off rows curl and look pinched compared to the rest of the square.

    Back to all steps

  6. Step 6: Sew the squares together

    Watch this step · 11:20

    Lay two finished squares side by side. Rotate one of them 90 degrees so the garter ridges run vertical on one square and horizontal on the other. Alternating like this is what hides the seam.

    Thread a long yarn tail onto a tapestry needle. Stitch through the small bumps along each square's edge, alternating between squares - one bump from the left square, one from the right, repeat. Tie off and weave the ends back through the fabric. Repeat for every seam in the blanket.

    Tip:

    Use the same yarn you knit with for the seams. A different color shows up; matching yarn disappears between the ridges.

    Back to all steps

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Question 1 of 5

How many squares does the blanket use?

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Key takeaways from How to Knit a Blanket

5 questions, answers, and one-line explanations. Tap to expand.

  1. 1.How many squares does the blanket use?

    Answer: 35 squares

    35 squares, each about 8 inches when finished, stitched together makes a generous throw. Each square takes ~30 min.

  2. 2.What is garter stitch?

    Answer: Knit every row

    Garter stitch is just the knit stitch worked on every single row. It produces those signature horizontal ridges on both sides.

  3. 3.How many stitches do you cast on per square?

    Answer: 14 stitches

    14 cast-on stitches with chunky yarn gives a square roughly 7.5 inches wide. Adjust count for bigger or smaller squares.

  4. 4.Target finished size for one square?

    Answer: About 20 cm

    Each square should be about 20 cm (8 inches) tall. Stop knitting once you hit that height and cast off.

  5. 5.How do you hide the seam when joining squares?

    Answer: Alternate ridge direction

    Rotate one square 90 degrees so garter ridges run vertical on one and horizontal on the other. The alternating direction hides the seam.

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