Super Chunky Through the Window Afghan – Free Crochet Pattern | Super Chunky Mosaic Crochet Afghan Pattern

This is a free crochet pattern and video tutorial showing how to crochet the Super Chunky Through the Window Blanket – a fun crochet pattern that uses the inset mosaic crochet technique. Don’t let it scare you! It’s comprised of simple single crochet stitches, chains and easy double crochets. 11 sizes included, and super chunky yarn means it’ll work up fairly quickly.

Find the free crochet pattern instructions below, or purchase a printer-friendly, ad-free PDF on Ravelry by clicking here.

This post contains affiliate links for WeCrochet and Lion Brand Yarns. If you make a purchase by clicking on them, I make a small commission at no extra cost to you. Thanks for your support!

In a hurry? Pin this for later when you have more time.

I have been trying to work on my home decorating, and bring more of a modern farmhouse feel. I thought this chunky crocheted blanket in shades of white and blue would be the perfect addition for Winter.

A blanket in my Through the Window series has also been one of the most requested patterns I’ve received since publishing my Through the Window Afghan Square. So now, you can use that square, and make many and sew together for a blanket, or you can make this larger scale blanket!

The idea of mosaic crochet may intimidate you, but please don’t let it. This stitch pattern is comprised of single crochets and chains with some double crochets to create the overlap. I think a confident beginner could do this.

While my favorite way to work this technique is with a variegated color underneath, and a solid coordinating color on top, it also looks great with a two solids or even just one color.

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Materials:

• 50 (291, 615, 1091, 1332, 1980, 4231, 5791, 6645, 7705, 7901) Yards of Super Bulky Yarn – I used Bernat Blanket Yarn in White and Faded Blues; Respectively, that’s 1082 yards + 898 yards
• M13/9mm Crochet Hook
• Small Crochet Hook (like a G6/4.25mm) with large mouth to weave in ends

Material Notes:

My sample is the throw size. The rest of the size yardages are estimated based on my sample and listed as White; Faded Blues:

• Newborn Photography Layering Blanket: 30; 20
• Newborn Photography Blanket: 160; 131
• Newborn Blanket: 329; 286
• Lapghan: 575; 516
• Toddler/Child: 695; 637
• Throw: 1082; 898
• Twin: 2236; 1995
• Full: 3040; 2751
• Queen: 3476; 3169
• King: 4021; 3684
• California King: 4224; 3677

Time Spent:

The throw size took me just over 11 and a half hours.

Measurements:

Quick guide: 0.13″ = 1/8″, 0.25″ = 1/4″, 0.5″ = 1/2″, 0.63″ = 5/8″, 0.75″ = 3/4″, 0.88″ = 7/8″

• Newborn Photography Layering Blanket: 9.75″ Wide by 10″ Tall
• Newborn Photography Blanket: 20.63″ by 21″
• Newborn Blanket: 29.75″ by 31.5″
• Lapghan: 37.88″ by 41.63″
• Toddler/Child: 40.63″ by 48.88″
• Throw: 50.13″ by 59.88″
• Twin: 66.5″ by 90.63″
• Full: 88.25″ by 92.25″
• Queen: 93.75″ by 97.13″
• King: 108.25″ by 97.13″
• California King: 113.63″ by 97.13″

While the newborn photography blanket is sized similarly to preemie blanket guidelines, I do not recommend a blanket made from Bernat Blanket Yarn for a preemie because it is too heavy for them, and they can become overheated easily.

The first two sizes are meant to be newborn photography photo props. Typically, the base is the blanket, and then the layering blanket is laid in a different direction on top, and then baby. Sometimes the newborn size is also used in photography.

Gauge (Not Essential):

In Pattern, 2 DC + 2 SC = 1 7/8″ Wide; 10 Rows = 5″ Tall

Abbreviations (US Terms):

• SC – Single Crochet (Photo Tutorial)
• DC – Double Crochet (Photo Tutorial) – in this inset pattern it’s worked in front of the chains
• MC – Main Color
• CC – Coordinating Color

Pattern Notes:

If you wanted to alter the width of the afghan, the chain multiple is 4 + 3. That means the final stitch count must be a multiple of 4, then add 3, and work in pattern.

If you want to alter the height of the afghan, add or subtract rows by 4 – this is the repeat.

In the pattern, I will instruct to example, in Round 5 “DC into R3”. In the photo above, you can see how there is a skipped stitch in white, and two rows of chains above it. You will push those chains to the back, and work the double crochet just into that skipped stitch in white. Shown on my Through the Window Soap Cozy or Small Bag.

The MC, or Main Color, is going to be the color you start your afghan with, and the color that shows on top as it’s also the same one the double crochets are worked in. The CC, or Coordinating Color, is going to be the color that you add in at the second row, and shows underneath to create the colored squares.

To change yarn colors, do so in the last yarn over of the previous row. If needed, see my How to Change Yarn Colors in Crochet tutorial. Drop old color to the back, and carry up the side. When you add your border, it will cover up the carried yarn. This is shown on my Through the Window Scarf.

This is what the back looks like, also shown on my Through the Window Scarf.

For the border, I fastened off after Rounds 2 and 3, and reattached in the next chain space. You can do so this way, or continue to switch colors as you have been for the afghan – in the last yarn over of the last stitch. The Border pattern is written to slip stitch over the chain space to begin the next round, but you can also chain 1, and work in pattern over to the chain space instead.

Super Chunky Through the Window Afghan, Video Tutorial:

Super Chunky Through the Window Afghan, Written Pattern:

In MC, chain 15 (39, 59, 75, 83, 99, 135, 183, 195, 227, 239). SC into the 2nd chain, and each across. [14 (38, 58, 74, 82, 98, 134, 182, 194, 226, 238) SC]

R2: Chain 1, turn. SC into the 1st SC, and each SC across. Switch to CC. 

R3: In CC, chain 1, turn. SC into the 1st 2 SC, (chain 2, skip the next 2 SC, SC into each of the next 2 SC) 3x (9x, 14x, 18x, 20x, 24x, 33x, 45x, 48x, 56x, 59x). 

R4: Chain 1, turn. SC into the 1st 2 SC, (chain 2, SC into each of the next 2 SC) 3x (9x, 14x, 18x, 20x, 24x, 33x, 45x, 48x, 56x, 59x). Switch to MC.

R5: In MC, chain 1, turn. SC into the 1st 2 SC, DC into each of the 2 open stitches from R3, (SC into each of the next 2 SC, DC into each of the next 2 stitches of R3) 3x (9x, 14x, 18x, 20x, 24x, 33x, 45x, 48x, 56x, 59x). 

R6: Chain 1, turn. SC into the 1st SC, and each SC across. Switch to CC.

R7 – 14 (42, 62, 88, 100, 118, 194, 198, 214, 214, 214): Repeat Rows 3 – 6, fastening off CC in the last set of repeats.

Border:

Chain 1, turn. (SC, chain 2, SC) into the 1st stitch to form a corner, SC into each remaining stitch across over to the last stitch, (SC, chain 2, SC) into the last stitch to form a corner, evenly SC (that’s 1 stitch per row) down the side of the blanket to the last stitch, (SC, chain 2, SC) into the last stitch to form a corner, SC across the opposite side of the foundation chain over to the last stitch, (SC, chain 2, SC) into the last stitch to form a corner, evenly SC (that’s 1 stitch per row) up the side of the blanket to the first stitch, then slip stitch join to the 1st SC.

Photo Blankets and Newborn: Slip stitch over to the chain space. Chain 1 without turning, and work in the same manner for 2 more rounds for a total of 3 rounds.

Lapghan, Toddler/Child, Throw, Twin, Full, Queen, King, and CAL King: Slip stitch over to the chain space. Chain 1 without turning, and work in the same manner for 7 more rounds for a total of 8 rounds.

Fasten off, and weave in ends.

Please feel free to make and sell your own items made using this pattern, but keep in mind, this written pattern and my photos are protected by copyright. Please DO NOT claim this pattern as your own nor should you sell my pattern. DO NOT re-publish my photos as your own. DO NOT copy and paste my pattern anywhere, link to it instead so other’s can visit. Making videos providing instructions how to make my projects on any social media platform is also not permitted.

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