Granny Square Blanket Crochet Patterns

Why the granny square still wins

The granny square survives because it solves a real problem: a blanket is an enormous project, but a square is a five-minute one. You can work three squares in an evening, carry them in a bag, and change colour as often as you like without a single ball being wasted. It is also self-correcting — if a square comes out a fraction too small, it disappears into the blocking, whereas the same error across a full-width blanket row would be permanent. That is why it remains the standard recommendation for a first crochet blanket.

Types of squares in this collection

• Classic granny: clusters of trebles with chain-space corners, worked outwards in rounds. The fastest to make and the easiest to memorise.
• Solid granny: no gaps between clusters, giving a denser, warmer fabric that is better for a cot or a pram blanket.
• Sunburst and flower squares: a circular centre worked into a square, which hides colour changes beautifully.
• Continuous granny: a single giant square worked from the middle outwards, so there is nothing to join at all.
• Blocks and sampler squares: different stitch patterns at the same finished size, joined into a patchwork.

How many squares, and how much yarn

Do the maths before you start, because it changes which square you choose. Decide your finished blanket size, crochet one square, block it and measure it, then divide. A lap blanket built from 15cm squares needs a very different number from one built from 25cm squares, and knowing the total up front tells you whether you have chosen a two-week project or a two-month one. For yarn, work out how many grams one blocked square uses, multiply by the number of squares, and add roughly ten per cent for joining and the border. DK acrylic and wool blends are the usual choice for washability; cotton gives crisper stitch definition but a heavier blanket.

Joining methods and how they look

The join changes the character of the finished blanket as much as the square does. Whip stitch through back loops gives a flat, almost invisible seam. Double crochet joining creates a raised ridge that reads as a deliberate grid, which suits bold colour schemes. Join-as-you-go attaches each square on its final round, so you never face a mountain of squares and a sewing session at the end — and it is the method most likely to get a blanket actually finished. Whichever you choose, join every square the same way round so the corners align.

Colour planning without overthinking it

Two approaches work reliably. Either fix the outer round of every square in one colour, which unifies any collection of centres however random, or work a repeating sequence of three or four shades so the eye reads a rhythm. Pure scrap-yarn blankets look best when squares vary in centre colour but share that constant border. Lay finished squares out on the floor and photograph them before joining; the photo shows clumps of similar tone that your eye glosses over in real life.

Blocking, borders and care

Block the squares, not just the finished blanket. Damp blocking on a mat with pins at the four corners turns slightly wonky squares into identical ones and makes joining much faster. Add a border of at least three rounds to a granny blanket: it frames the work, adds weight so the edges do not curl, and covers any small irregularity in the outer squares. Weave ends in as you go, round by round, rather than saving hundreds for the end. Machine wash acrylic and superwash blends on a cool gentle cycle, dry flat, and never wring a blanket by hand.

Granny square blanket questions

Is there a simple granny square blanket free pattern? Yes, free PDF designs sit alongside the paid ones here, including plain repeated-square blankets suitable for beginners.

How many squares make a blanket? Block one square, measure it, and divide your target blanket dimensions by that measurement. Sizes vary far too much for a single answer.

What hook and yarn should I use? DK with a 4mm hook is the most common starting point, but follow the pattern and swatch a square before buying the full quantity.

What is the neatest way to join squares? Whip stitch through back loops for an invisible seam, or join-as-you-go if you would rather avoid a long sewing session.

Can I use up odd balls? Yes — that is the granny square's great strength. Keep one shade constant on the final round to tie mismatched centres together.