Rectangle Crochet Blanket Pattern (Free, Make Any Size!)

This rectangle crochet blanket pattern is a simple and beginner-friendly way to create cozy blankets without joining hundreds of granny squares. Using classic granny clusters worked in the round, you can easily crochet lap blankets, throws, and even bedspreads. If you already know how to crochet a granny square, this rectangle crochet blanket will feel very familiar — just stretched into a practical rectangular shape.

What is a Rectangle Crochet Blanket Pattern?

A rectangle crochet blanket pattern uses the same construction principles as a granny square blanket, but starts with a rectangle foundation instead of a center ring. This allows you to crochet blankets that are longer on two sides and shorter on the other two sides, making them ideal for:

• Lap blankets
• Couch throws
• Twin beds
• Larger bedspreads

The biggest advantage is that you avoid sewing together lots of separate granny squares.Rectangle Crochet Blanket Pattern

If you enjoy textured blanket projects, explore the full crochet blanket patterns collection for more beginner-friendly ideas.

Almost everyone who has ever tried crochet has actually made a granny square. It is perfect for beginners to start on the art of crochet! Taking that a step further, you may have attempted a continuous granny square blanket, constructed just like a small granny square, but you continue crocheting until your square is large enough for a blanket. This saves the trouble of sewing all those little squares together!

But, you may say, most blankets are rectangular in shape. I do not want a perfectly square blanket; I want it longer on two sides and shorter on the other two. I want to make a blanket for a twin bed or a throw for my rectangular sofa. Well, you have come to the right spot! This is how to make a rectangular crochet blanket without sewing hundreds of little squares together!

How to Crochet a Rectangle Blanket (Step-by-Step)

Supplies

• Yarn of your choice. These blankets look wonderful in multiple colors and make a wonderful scrap-busting project, but you can always make them in just one color! Use DK or worsted-weight yarn.
• Crochet hook suitable for your yarn. 4mm for DK or 5mm for worsted.
• Scissors.
• Tapestry needle or yarn needle for weaving in ends.

Gauge

This blanket can be made with DK or worsted yarn. Gauge isn’t overly important, since you can crochet the blanket to any size. Read my article on crochet blanket sizes.

• Worsted – 13 st and 8 rows of dc with a 5mm hook.
• DK – 16 st and 8 rows of dc with a 4mm hook.

Abbreviations

All instructions are written in US terminology.

• ch = chain stitch
• dc = double crochet stitch
• sp = space
• rep = repeat
• sl st = slip stitch
• sk = skip

Granny Rectangle Blanket Sizes

You can use this pattern to make a crochet blanket of any size. The formula for calculating the length of chains for row 1 is as follows:

Length of Chains = (Length−Width)

Note: this gives you the length of the chain and not an actual number

If you want the number of chains, multiply the length by the yarn gauge per 1-inch. (DK = 4 stiches, Worsted = 3.2 5stitches)

Here are some suggested sizes (all rounded to multiple of 3 + 2 for turning):

Blanket Type	Dimensions	Chain Length	Number of Chains DK (4 st /inch)	Number of Chains Worsted (3.25 st/inch)
Lapghan	40×48″	8”	33+2=35	26+2=28
Throw	48×60″	12”	48+2 =50	39+2=41
Twin	66×90″	24”	96+2=98	78+2=86
Full/Double	80×90″	10”	40+2=42	33+2=35
Queen	100×95″	5”	21+2=23	18+2=20
King	106×100″	6”	24+2=26	21+2=23

Color Sequences

I used the following 5 colors in the following sequence:

• Row 1, 2  – Color A (Blue)
• Row 3 – Color B (Cream)
• Row 4,5 – Color D (Fuchsia)
• Row 6 – Color B (Cream)
• Row 7,8 – Color D (Teal)
• Row 9 – Color B (Cream)
• Row 10, 11 – Color E (Light Pink)

Repeat the sequence as many times as you wish.

How to Crochet a Rectangle Blanket Pattern

When crocheting a square blanket, you would start with a magic ring, or chain 4, and join with a slip stitch to form a ring. Instead of starting with a ring, you will need to start with a rectangle of chains and build the blanket around that. The construction method is exactly the same; only the start is different.

Row 1

1. In color A, start with a foundation chain of a multiple of 3 +2.
2. Insert into the 3rd chain from the hook and crochet a row of sc into each chain.

Row 2

1. Chain 3 (equal to 1^st dc),
2. 2 double crochet into the first single crochet stitch below.
3. Skip 2, ch1, 3 dc into next stitch.
4. Repeat from * until the end of the row. Finish with 3 dc into the space formed by the 2 chains at the start.
5. (Ch2, 3 dc, ch2, 3dc) all into the same space. (Corners formed.)
6. Work back along the bottom of the row of sc, working 3dc clusters into the same stitches as before to create a perfect mirror image. You will end with 3dc into the last stitch.
7. (Ch 2, 3 dc) into the same space as 1^st cluster.
8. Chain 2, slip stitch into the top of the 3 chains at the start of this round.

Row 3 and Beyond

1. Fasten off and join new color in any space on the long sides. (Alternatively – If you are continuing in the same color for this round, sl st to the next space.)
2. Work (3 dc, ch1) into each space along the side, then (3 dc, 2 ch, 3 dc) into each corner space.
3. Join with a sl st.
4. Continue in this pattern for each round, changing colors in your desired pattern sequence.

Common Mistakes When Crocheting a Rectangle Blanket

One common mistake is forgetting to account for corner increases, which can cause the blanket to lose its rectangular shape. Another issue is inconsistent tension, especially when changing colors frequently. Some crocheters also accidentally skip spaces between granny clusters, causing uneven stitch counts. Counting corners and checking shape regularly helps avoid problems.

Tips for a Perfect Rectangle Crochet Blanket

• Using stitch markers in corner spaces can help keep track of increases.
• Changing colors every few rows creates beautiful striped or ombre effects.
• If your blanket starts curling, try loosening the tension slightly or increasing the hook size.
• Weaving in ends as you go saves time later.

Rectangle Crochet Blanket Pattern FAQs

Pin for Later

Rectangle Crochet Blanket Pattern – In Conclusion

Now that you know how to make a rectangle crochet blanket pattern, you can easily customize blankets for couches, beds, gifts, and home décor. This simple granny cluster method creates a cozy, textured blanket without the hassle of joining separate squares. Once you master the repeating rounds, rectangle crochet blankets become relaxing and highly addictive projects to make again and again.