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Learn How to Modify Afghan Crochet Patterns to Any Size

By Toni Rexroat, Crochet Me editor

So you want to learn how to crochet an afghan of any size? Crochet blankets are simple in shape, a basic rectangle of crochet stitches, but modifying crocheted afghans can sometimes be anything but simple. With no fit and rarely any shaping, crochet afghans are a perfect blank canvas for learning or playing with new techniques such as cables, Tunisian crochet, motifs, and more.

Crochet Afghan Patterns: City Stripes

City Stripes by Leigh Radford

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Afghan Crochet Patterns: Solas Caomh

Solas Caomh by Jodi Euchner

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There are three basic sizes for crochet blankets: afghan, lap blanket, and baby blanket. Traditionally a full-size crochet afghan measures about 50" by 65". The lap blanket is about 35" by 40". And the perennial favorite, the baby blanket, measures about 25" by 30". These measurements are just guidelines. Your crochet afghan's size can be determined by your gauge, stitch pattern, or motif size.

Basic or Striped Afghans


Crochet Blanket Patterns from the Craft Tree Crocheted Afghans eBook

The Moorish Mosaic Afghan from the Craft Tree: Crocheted Afghans eBook.

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Crochert Afghans from the Unexpected Afghans Book

Desert Sunrise Afghan Pattern from the Unexpected Afghans Book. Order the book or download the eBook instantly.

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But what if you want to modify a baby blanket into a full size afghan or a large afghan into a crib size blanket? Easy crochet afghan patterns that are worked in stripes using a single stitch, such as the City Stripes afghan by Leigh Radford, are the easiest to modify. Use the gauge, in this case 11 single crochet and 14 rows equal 4". This is 2 ¾ single crochet and 3 ½ rows equals 1". So to create a crochet baby blanket, you would need to work only 69 stitch and 105 rows in the color stripe pattern.

Crochet Afghans with Consistent Stitch Patterns or Motifs


Crochet afghans that are worked in a specific stitch pattern or are created by joining motifs are constrained in size to the proportions of the stitch pattern or motif. The size of the Moorish Mosaic Afghan by Lisa Naskrent is determined by the main octagonal motif. This motif is 8" wide and 8" tall. The original pattern is 5 motifs wide and 6 motifs high. But what if you want to convert this crochet blanket pattern to a lap afghan size? Pull out your calculator. A configuration of 4 motifs wide and 5 motifs high will create a lap afghan that is 32" by 40". A baby blanket of 24" by 32" is easily constructed with rows of motifs 3 wide and 4 high. You can adjust the size of an afghan worked in a stitch pattern in the same way by working more or fewer repeats of the stitch pattern.

Inconsistent Pattern


A crochet blanket like the Solas Caomh by Jodi Euchner that incorporates a pattern that is not consistent across the width or height requires some creativity to modify. To modify this crochet blanket pattern from a baby blanket to an adult size afghan, you have several options. You could simply increase the number of double crochet stitches between the cable bands or you could work more cables bands in any configuration you find pleasing.

Yarn Weight


Another way to modify the size of an afghan is to substitute the yarn with a lighter or heavier weight yarn. A full size afghan like the Desert Sunrise by Carol Ventura, worked in worsted-weight yarn, can be modified to a lap afghan or baby blanket by working the pattern in a sport-weight yarn instead. Modifications in yarn weight and hood size mean the swatch becomes very important if you want to ensure your finished afghan is the correct size.

Download or order your favorite crochet afghan patterns and learn how to crochet a blanket of any size today.

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Toni Rexroat

Best wishes,


Toni Rexroat is the editor for Crochet Me.

Outfitted with several crochet hooks and surrounded by bins of yarn, she has been the assistant editor for Interweave Crochet magazine and sister publication PieceWork. She was born and raised in a little town in Wyoming where she was exposed to wool and other fibers at an early age, and began crocheting in her early teens. Enjoying a wide variety of fibery hobbies from crochet and knitting to sewing, she is determined to learn to spin so she can crochet with her own yarn.


Continue Learning How to Crochet a Blanket and Modify Them with these Favorite Resources.
(And don't forget your 10% discount* with coupon code SAVELP)

Crochet Blankets with Various Stitches: Unexpected Crochet Stitches for Afghans and Beyond Video

How to Crochet an Afghan: Chain Reaction Afghan Project Crochet-Along Video

Crocheted Afghans: Warm & Cozy Afghans from 1918 to Crochet eBook

How to Crochet a Blanket Using Blocks: 200 Crochet Blocks Book

Unexpected Crochet Stitches for Afghans
and Beyond
(DVD)
Watch and learn how to crochet an afghan
with this workshop video. Start with the basics, then move on to stitches and all sorts of techniques for beginner to intermediate. Plus with two afghan crochet patterns and 25 stitch patterns, the sky is the limit!

Chain Reaction Afghan Project
Crochet-Along

(DVD or Video Download)
Full of beautiful ideas for crochet afghans,
this workshop is all about exploring crochet blankets. Choose from 20 afghan squares, from intricate Tunisian to easy crochet afghan patterns, and add as many as you want to create the perfect sized blankets.

Warm & Cozy Afghans from 1918
to Crochet

(eBook)
Get warm and cozy with timeless crochet afghan patterns. With 8 designs from a 1918 manual, these patterns will delight your inner crocheter. Explore many stitches while whipping up a crochet blanket pattern that is sure to be treasured.
200 Crochet Blocks for Blankets, Throws,
and Afghans
(Paperback)
Motifs are the building blocks for customized crochet blankets. Just pick your favorites and make up as many as you need to combine to the correct dimensions. This book will walk you through 200 blocks to crochet for all the blankets, throws and afghans you can imagine.