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Free Reversible Double Sided Interlocking Crochet Pattern – Balsam Blanket

Make a double sided interlocking crochet pattern! This gorgeous double filet crochet blanket pattern is made using interlocking crochet, a technique that makes two beautiful patterns so there are no wrong sides!

Each side creates a different pattern that pops by using contrasting yarn colors! You are going to love creating this free pattern for an interlocking crochet blanket inspired by Christmas Trees.

Start making the Balsam Blanket using the easy to navigate Table of Contents under the first photo below.

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Free Reversible Double Sided Interlocking Crochet Pattern - Balsam Blanket

Double Sided Interlocking Crochet Pattern Info

This pattern is designated as an Advanced Skill Level pattern because this special crochet technique can be tricky to get started. 

For this pattern I have written it for three sizes, Baby (Lapghan, Throw) with measurements of 24 x 30 (42 x 35, 42 x 35) inches.

BONUS: I have included a section below explaining the multiple and how to make different blanket sizes. 

When choosing your yarns for this project be sure to pick contrasting colors to really make this beautiful blanket pop so that the stitch design stands out!

For mine I chose to use a deep, muted green and a middle tone warm neutral. Had I used a darker green or an off white this blanket would have popped even more!

COLOR Choice Tip: If you want the look of color work, try using a self striping yarn like Mandala with a Solid, check out my Duality Blanket as an example!

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

The chain spaces in this pattern are never worked except when adding trim. You only work in the double crochet stitches and the turning chain. 

Interlocking crochet is one of a few wonderful crochet techniques that creates a double-sided reversible fabric if you do not like the mosaic option.

double-sided crochet stitch blanket

FAQ: What is Interlocking Crochet? 

Interlocking Crochet is a technique that is also called mosaic crochet, 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!

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 row is actually two 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. Noted as dcb (double crochet in back) and dcf (double crochet in front). These stitches are explained further below.

double filet crochet blanket

How to Adjust to Make More Sizes

There are two multiples for this interlocking crochet blanket pattern.

For Color A the Multiple is 8 plus 4. For Color B it is 2 stitches less than the foundation chain for Color A.

So if you notice the gauge swatch is 28 stitches (24 + 4) for Color A and 26 stitches (28 – 2) for Color B. 

Using that gauge swatch you can figure out more sizes even if you use larger or smaller yarn with a different hook. 

Feel free to make a baby blanket, couch throw, something simple like a pot holder or hand towels just to get the hang of the different stitch patterns in this special crochet technique.

As far as yardage goes you will need pretty close to even amounts of each color. Always get a bit more than needed so you don’t have to worry about dye lots later. 

Yarn Substitutes

For this pattern I used Cottino from Lion Brand, a CYC 3 cotton wool blend yarn. I love this yarn and all of its color options, but if you wanted something else I have a few suggestions.

  • Wool Ease DK and Mandala if you want the look of color work.
  • Wool-Ease Recycled is a great yarn!

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  • Copyright 2026, Life and Yarn, Brianna Iaropoli. Pattern contents are NOT to be re-shared, DIRECT LINKS ONLY to this post for the pattern.

Materials

  • 2 (4, 5) skeins Cottino in Ranger [614-173AN]- Color A 
  • 3 (5, 6) skeins Cottino in Limestone [614-122AL]- Color B             
  • #3 DK Weight Yarn 
  • 592 (1184, 1480) skeins Cottino in Ranger [614-173AN]- Color A 
  • 888 (1480, 1776) skeins Cottino in Limestone [614-122AL]- Color B
  • Size 5.5 mm crochet hook
  • Yarn Needle                           
  • 2 Stitch Markers   

Gauge Swatch Instructions

  • Foundation Chain A 28 sts.
  • Foundation Chain B 26 sts.
  • Follow pattern repeat 1 time for 6 x 4 inches.

Sizing 

  • Baby (Lapghan, Throw) – 24 x 30 (42 x 35, 42 x 35) inches

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.
  • Stacked Single Crochet as hdc – STsc/hdc – insert your hook into the designated stitch, YO, pull up a loop, YO, pull through both loops, insert your hook into the second vertical bar on the stitch you just created, YO, pull up a loop, YO, pull though all loops.

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.

Free Interlocking Crochet Blanket Pattern

Foundation Row A
Ch 108 (196, 196), dc in 6th ch from hook, *ch 1, sk 1, dc in next, repeat from * to end, place SM. 
Foundation Row B
Ch 106 (194, 194), 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 back 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, dcb in next dc, *ch 1, dcf in next dc, ch 1, dcb in next dc, repeat from * to last dc, ch 1, dcf in last dc (3rd ch of t-ch).

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, *(ch 1, dcb in next dc) 2 times, (ch 1, dcf in next dc) 2 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, dcf in next dc, *ch 1, dcb in next dc, ch 1, dcf in next dc, repeat from * to last dc, ch 1, dcb in last dc (3rd ch of t-ch).
Row 2B
Ch 4, dcb in next dc, ch 1, dcb in next dc, *(ch 1, dcf in next dc) 2 times, (ch 1, dcb in next dc) 2 times repeat from * to last dc, ch 1, dcf in last dc (3rd ch of t-ch).
Turn entire piece.

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

Bring Color B Working Yarn to Front. 
Row 4A
Ch 4, dcf in next dc, *ch 1, dcb in next dc, ch 1, dcf in next dc, repeat from * to last dc, ch 1, dcb in last dc (3rd ch of t-ch).
Row 4B
Ch 4, dcb in next dc, ch 1, dcb in next dc, *(ch 1, dcf in next dc) 2 times, (ch 1, dcb in next dc) 2 times repeat from * 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, dcb in next dc, *ch 1, dcf in next dc, ch 1, dcb in next dc, repeat from * to last dc, ch 1, dcf in last dc (3rd ch of t-ch).
Row 5B
Ch 4, dcf in next dc, ch 1, dcf in next dc, *(ch 1, dcb in next dc) 2 times, (ch 1, dcf in next dc) 2 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 Back. 
Row 6A
Ch 4, dcb in next dc, *ch 1, dcf in next dc, ch 1, dcb in next dc, repeat from * to last dc, ch 1, dcf in last dc (3rd ch of t-ch).
Row 6B
Ch 4, dcf in next dc, ch 1, dcf in next dc, *(ch 1, dcb in next dc) 2 times, (ch 1, dcf in next dc) 2 times repeat from * to last dc, ch 1, dcb in last dc (3rd ch of t-ch).
Turn entire piece.

  • Repeat Rows 1A/B to 6A/B 9 (10, 12) times TOTAL.
  • Then repeat Rows 1A/B and 3A/B, finish off.

Note: I opted to only put trim on the bottom and top edge since I really liked how the row ends looked on this pattern. You should have enough extra yarn of Color B to add trim to the each side if you choose to do so. 

Note: We will now work Color A and Color B together by alternating Double Crochets and Half Double Crochets since the rows are different heights and this will help to keep the blanket from bulging.

Next: Reattach your yarn in the Foundation Row in Color A using Color B.

Row 1 – STsc/hdc where you reattached your yarn in Foundation Row A, *dc around Color A and in the next st of Color B so that the two colors are brought together, hdc in next st of Color A skipping next stitch of Color B so that the Color B stitch doesn’t get pulled up, repeat from * to end placing your final hdc in only Color A.

Explanation of Row 1: You will see as you are working this row that you are using a shorter and longer stitch but he top of the row will line up since the foundation rows are uneven.

Row 2 – Turn, STsc/hdc in first st, *FPdc in next st, BPdc in next stitch, repeat from * until 1 st remains, hdc in last stitch.
Row 3 – Turn, STsc/hdc in first st, *FPdc in next st, BPdc in next stitch, repeat from * until 1 st remains, hdc in last stitch, finish off.

Next: Reattach your yarn in the your final Row in Color A using Color B.

Next: Repeat Rows 1 to 3 working in the Final Rows as you did for the Foundation Rows however you will need to swap your double crochets and half double crochets since Color B will now be taller than Color A.

Next: Finish Off, weave in your ends and enjoy!

I hope you enjoyed this free crochet blanket pattern! Please check out the Main Page of the Life and Yarn Blog to browse all of the free crochet patterns!

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