How to Crochet a Chunky Blanket – Free Pattern Video Tutorial

Make an Interlocking Crochet Chunky Blanket with this Free Pattern and Step-by-Step Video Tutorial. This chunky crochet blanket pattern is made with simple stitches but uses an advanced crochet technique. If you are a beginner crocheter looking for a challenge this is a perfect project to learn something new. Read more below about interlocking crochet, sometimes called double filet crochet but not to be confused with mosaic crochet, Happy Crocheting!

Best Bang for your Buck, get a Kit From Lion Brand includes printable PDF and Yarn! Or get an ad-free PDF Version on Etsy or Ravelry!

Helpful Tips and More About This Pattern

Be sure to place a stitch marker in the last st of the end of each row before switching to the next color so that your stitches do not get dropped.

This is a great pattern to try interlocking crochet for the first time since it uses bulky chunky yarn and a large crochet hook. Just like learning how to make your first crochet stitches, using big yarn and a big hook makes seeing what you are doing easier!

Be very mindful of your tension when making your favorite new blanket! If you don’t match your gauge and tension on both colors you won’t get the squishy chunky texture!

Do you love chunky throw blankets? Check out all of my free patterns using chunky bulky weight yarn!

What is Interlocking Crochet 

Interlocking Crochet is a technique that is sometimes mixed up with mosaic crochet. You might know it as double filet crochet, interweave or intermeshing. However you call it, one thing is for sure, it is gorgeous! This special crochet technique creates double-sided designs making the pattern completely reversible.

This is a crochet technique where you create two layers of fabric (filet mesh) and work them together at the same time so that the rows are woven or interlocked!

It is important to note that each repeat row is actually two rows and the patterns are created by some stitches being worked in front and some in back but never mixing the stitches of your two separate colors. 

Stitch placement is noted as dcb (double crochet in back) and dcf (double crochet in front). These stitches are explained further below.

While this designated as an advanced skill level crochet technique you only have to know some simple stitches. If you know how to chain and make double crochet stitches then the rest is just stitch placement and counting!

I hope you enjoy this pattern and be sure to watch my YouTube Video Tutorial if you need some help!

How to make a Smaller Blanket or Larger Blanket

Is the size I wrote this crocheted blanket pattern not the size you were looking for? Maybe you want to make baby blankets or any other custom size. Use these steps to make this blanket the right size for what you need!

NOTE: Make and measure your swatch using basic stitches, in this case the pattern repeat, to see if your yarn and hook combo works with your tension. If your swatch is wavy and seems to have too much fabric you will need to go down a hook size. If your swatch does not lay flat and seems to be pinching you will need to use a slightly larger hook.
Gauge fro this pattern:

• Chain 18 for Foundation Row A
• Chain 16 for Foundation Row B
• Follow pattern for first repeat (Rows 1-6)
• Swatch will measure 6 by 6 inches

NOTE: The multiple for this pattern is 12 + 6 for Foundation Row A and for Foundation Row B you will do 2 less chains than what was use for Foundation Row A.
NOTE: You will measure your swatch across on Color A since Color B will be smaller on the back.

Step 1: Make your swatch. Your swatch in the pattern repeat should measure 6 inches by 6 inches on Color A IF you are using recommended yarn and hook combo and match my gauge. 

NOTE: If you are using a bigger or smaller yarn and hook combo this measurement will be different.

Step 2: Figure out your stitch and row measurements. The swatch made consists of 1 repeat of the pattern plus one border edge, so each repeat created will give you 6 inches of width. The 6 rows completed to create 6 inches means that each repeat is 6 inch tall.

Step 5: So you now know 1 repeat is 6 inches wide and 1 set of row repeats is 6 inch tall. Therefore, if you wanted to make a smaller blanket such as a lovey that is 24 by 24 inches then you would take 24 inches / 6 inches per repeat to get 4 repeats then multiple 4 by 12 (stitch multiple) to get 48 + 6 for a starting chain of 54 stitches.

Step 6: To make the blanket 24 inches tall you will take 24 inches and divide by 6 inches per repeat to get a total of 4 x 6 rows/repeat for a total of 24 rows.

You can use this method to figure out how to make this blanket in a larger size or smaller size. Get creative to make a range sizes of finished blankets!

Yarn Substitutes

• Hue + Me with Mandala Impressions
• Any Bulky weight combo
• Or try using worsted weight held double to do some stash busting to use up leftover yarn!

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• Copyright 2025, Life and Yarn, Brianna Iaropoli. Pattern contents are NOT to be re-shared, DIRECT LINKS ONLY to this post for the pattern.

Materials

• 8.00 mm Crochet Hook
• 6 Skeins of Lion Brand Hue + Me in Salt [617-098AS] – Color A
• 2 Skeins of Lion Brand Scarfie
  Evergreen/Pearl Grey [826-241F] – Color B
• 2 Stitch Markers
  OR
• #5 Bulky Weight Yarn – 2040 yards
  820 Yards – Color A
  620 Yards – Color B

Gauge

• Chain 18 for Foundation Row A
• Chain 16 for Foundation Row B
• Follow pattern for first repeat (Rows 1-6)
• Swatch will measure 6 by 6 inches

If your swatch is too big you will need to go down a hook size, if it is too small you will need to go up a hook size.

Sizing 

• One Size: 48 by 48 inches
• This stitch pattern blocks out significantly so this blanket can be much larger. 

Stitch Descriptions and Abbreviations

• Chain Stitch – ch 
• Stitch(es) – st(s)
• Space – sp    
• Skip – sk
• Stitch Marker – SM
• Single Crochet – sc
• Double Crochet – dc
• Double Crochet in Front – dcf – Work your double crochet as your normally would from the front. Sometimes this requires pulling the stitch through the corresponding window of the opposite color. To do this your will yarn over, bring your hook to the front, go through the window to pick up the dc needing to be worked on the back, insert your hook, pull the stitch through the window to the front, then complete your double crochet stitch as normal.
• Double Crochet in Back – dcb – Work your double crochet as your normally would from the back. Sometimes this requires pulling the stitch through the corresponding window of the opposite color. To do this your will yarn over, bring your hook to the back, go through the window to pick up the dc needing to be worked on the front, insert your hook, pull the stitch through the window to the back, then complete your double crochet stitch as normal.

Pattern Notes

• * Designates a repeat.
• “sc 1” means to single crochet in the next stitch.
• “sc 2” means to single crochet in each of the next 2 stitches.
• “2 sc” means to single crochet twice in the next stitch to create an increase.
• Ch 4 counts as first dc and ch-1 sp throughout.
• Final dc sts are placed in the 3rd chain of the t-ch.
• When working rows you will only work your stitches in the color you are currently using (ex. Color A only creates stitches in the previous Color A Row) and work through, in front or in back of the color you are not using, never around the other color.
• Row Instructions give two sets of instructions noted as Row “1A” and Row “1B”. The A and B Reference the color you are working with, so each row is really two rows worked in succession.

Interlocking Crochet Mandala Blanket

Foundation Row A
Ch 114, dc in 6th ch from hook, *ch 1, sk 1, dc in next, repeat from * to end, place SM. 
Foundation Row B
Ch 112, dc in 6th ch from hook, *ch 1, sk 1, dc in next, repeat from * to end, place SM.

Note: Lay Foundation Row A on top of Foundation Row B with the working yarn at the same side so you may begin working Row 1A below followed by Row 1B. 

Note: Be sure to take the working yarn from Foundation Row B and drop it to the front so that you can work your Row 1B on the Front (Right Side) of your project. 

Note: Place a SM at the end of each row before starting the next.

Bring Color B Working Yarn to Back. 
Row 1A
Ch 4, dcf in next dc, *(ch 1, dcb in next dc) 4 times, (ch 1, dcf in next dc) 2 times, repeat from * to end.
Note: When working this row for the first time the stitch placement can be tricky before the pattern be comes easy to see. The first stitch (dcb in next dc) will be picked up between the first and second dc of Foundation Row B then the rest of the stitch placements are easy.
Row 1B
Ch 4, dcf in next dc, (ch 1, dcf in next dc) 4 times, *ch 1, dcb in next dc, (ch 1, dcf in next dc) 5 times repeat from * to last dc, ch 1, dcb in last dc (3rd ch of t-ch).

Turn entire piece.

Bring Color B Working Yarn to Front. 
Row 2A
Ch 4, dcb in next dc, *(ch 1, dcf in next dc) 4 times, (ch 1, dcb in next dc) 2 times, repeat from * to end.
Row 2B
Ch 4, dcb in next dc, ch 1, dcb in next dc, *ch 1, dcf in next dc, (ch 1, dcb in next dc) 2 times, repeat from * across to last dc, ch 1, dcf in last dc (3rd ch of t-ch).

Turn entire piece.

Bring Color B Working Yarn to Back. 
Row 3A
Ch 4, dcf in next dc, *ch 1, dcb in next dc, (ch 1, dcf in next dc) 2 times, repeat from * to end. 
Row 3B
Ch 4, dcf in next dc, ch 1, dcf in next dc, *ch 1, dcb in next dc, (ch 1, dcf in next dc) 2 times, repeat from * across to last dc, ch 1, dcb in last dc (3rd ch of t-ch). 

Turn entire piece.

Bring Color B Working Yarn to Front. 
Row 4A
Ch 4, dcb in next dc, *(ch 1, dcf in next dc) 4 times, (ch 1, dcb in next dc) 2 times, repeat from * to end. Row 4B
Ch 4, dcb in next dc, (ch 1, dcb in next dc) 4 times, *ch 1, dcf in next dc, (ch 1, dcb in next dc) 5 times, repeat from * across to last dc, ch 1, dcf in last dc (3rd ch of t-ch)

Turn entire piece.

Bring Color B Working Yarn to Back.
Row 5A
Ch 4, dcf in next dc, *(ch 1, dcb in next dc) 4 times, (ch 1, dcf in next dc) 2 times, repeat from * to end.
Row 5B
Ch 4, dcb in next dc, *ch 1, dcb in next dc, repeat from * to end. 

Turn entire piece.

Bring Color B Working Yarn to Front.
Row 6A
Ch 4, dcb in next dc, *ch 1, dcb in next dc, repeat from * to end. 
Row 6B
Ch 4, dcf in next dc, *ch 1, dcf in next dc, repeat from * to end. 

Turn entire piece.

• Repeat Rows 1A/B to 6A/B (9) times total, omitting the final Row 6B so that Color B ends on a Row 5B repeat while Color A ends on a Row 6A repeat. 
• Finish off Color B but do NOT finish off Color A and continue to “Blanket Border Trim” Instructions below.

Blanket Border Trim

Continuing with Color A from Row 6A turn so that the Right Side of the blanket is facing you so you can work Row 6A and Row 5B together.

1. Ch 1, sc in first dc of Color A, then pick up Color B behind and place another sc around Color A’s ch-1 and Color B’s first dc to bring them together.
2. Then working your way across to join both colors using Color A, place each next sc in the next dc and around the corresponding next ch-1 sp. You will always place a sc in a dc and ch-1 sp, never in the same type of st, repeat this to the end treating your t-chs as ch-1 sps as dc sts.
3. Place 3 more sc in the last worked stitch of Color A for a total of 4 sc to create a corner, turn your Blanket to begin working down the side in your row ends.
4. For the side of your blankets’ row ends you will place 2 sc in each t-ch, place 1 sc in each dc and 1 sc around each dc post. Each row end will get 2 sc sts by working in this manner.
5. When you reach the end, place 3 sc in the last stitch to create your next corner and turn your blanket to join Foundation Row A and B together.
6. Join Foundation Row A and B together in the same fashion as your final Row 6A and Row 5B by working a sc in a dc and a ch-1 sp making sure you are joining corresponding stitches.
7. When you reach the end, place 3 sc in the last stitch to create your next corner and turn your blanket to begin working down the last side in your row ends.
8. Place your sc sts in the same fashion on this side as you did the other side (Step 4) and then when you reach the end place 3 sc in the first dc-st worked to complete the corner, finish off.

If you loved this free crochet pattern check out more of my crochet blankets for your next project!