Third Dimension 8 Inch Afghan Block Free Crochet Pattern
As an Amazon Associate, I earn from qualifying purchases. When you purchase through links on my site, I may earn an affiliate commission. Here’s how it works.
The Third Dimension 8 Inch Afghan Block is a beautifully textured crochet square that’s perfect for afghans, blankets, and modular projects. This free crochet pattern creates a stunning 3D effect using simple stitches. Whether you’re joining it with other blocks or using it as a feature square, this design adds depth and texture to any blanket.
Materials & Pattern Details
- Yarn: Red Heart with Love. Worsted Weight Yarn [4]
- Crochet Hook: 5.5 mm (I)
- Finished Size: 8 inches x 8 inches (20 x 20 cm)
- Stitches Used: [e.g., double crochet, front post double crochet, chain, slip stitch]
- Skill Level: Intermediate (or Easy-Intermediate)
- Pattern Format: Written instructions with step-by-step photos
🖨️ Tip: You can print or download a free copy of this pattern using the printer icon at the top of this post.
Third Dimension 8 Inch Afghan Block Pattern
Supplies
Yarn: Red Heart with Love
Crochet Hook: 5.5 mm (I)
Finished Size
Approximately 8 inches by 8 inches square
Abbreviations
US Crochet Terminology
- ch(s) – chain(s)
- ch3sp – chain 3 space
- dc – double crochet
- FPsc – front post single crochet
- R – row
- RS – right side
- sc – single crochet
- * to ** – work instructions between the number of times indicated
Stitch Multiple
Chain a multiple of 4 stitches, plus an additional 2 stitches for the starting chain
Special Stitches
FPsc: Front Post Single Crochet – (you will be working around the post of a stitch) – insert your hook from the front of your work to the back of your work and back to the front around the post of the specified stitch; yarn over your hook and pull up 1 loop, yarn over and draw through both loops on your hook
How to Crochet the Third Dimension Afghan Block
R1 (RS): Ch 26, 1 sc in the 2nd ch from the hook. *Ch 3, skip 3 chs, 1 sc in the next ch**. Work from * to ** across. Turn. [7 sc, 6 ch3sp]
R2: Ch 3 (this counts as 1 dc) and 1 dc in the first sc, skip the next ch3sp. *3 dc in the next sc, skip the next ch3sp**. Work from * to ** across to the last sc. Work 2 dc in the last sc. Turn. [19 dc]
R3: Ch 1, 1 sc in the first dc, ch 3. *Skip the next 2 dc, work 1 FPsc around the next dc, ch 3**. Work from * to ** across to the last 3 dc (remember the initial ch 3 from R2 counts as 1 dc). Skip the next 2 dc and make 1 sc in the last dc. Turn. [2 sc, 5 FPdc, 6 ch3sp]
R4: Ch 3, 1 dc in the first sc, skip the next ch3sp. *3 dc in the next FPsc, skip the next ch3sp**. Work from * to ** across to the last sc. 2 dc in the last sc. Turn. [19 dc]
R5-R20: Repeat R3 and R4
Do not finish off – proceed to the Border.
Afghan Block Border
Working around the outside of the afghan block.
Ch 1, turn to work along the top edge of your square (across Row 20). 1 sc in each of the next 3 sts, 1 FPsc in the next st, *1 sc in each of the next 2 sts, 1 FPsc in the next st **. Work from * to ** across to the last 3 sts. 1 sc in each of the last 3 sts. Ch 1, rotate to work along the side of your square.
Work 25 sc evenly across the side edge of the square. Ch 1, rotate to work across the bottom of the square.
1 sc in the corner st, skip 1 ch, 1 sc in each of the next 2 chs. *1 sc in the next sc, skip 1 ch, 1 sc in each of the next 2 chs.** Work from * to ** across. Ch 1, rotate to work along the final side of your square.
Work 25 sc evenly across the side edge of the square. Ch 1, rotate and make an invisible join before finishing off and weaving in your ends.
Finishing Instructions
- Weave in any remaining ends.
- Block your square.
Step-By-Step Photo Tutorial
How to Use This Block in Your Projects (for blankets, pillows, etc.)
This 8 inch crochet block works beautifully for blankets, throws, and modular afghan projects. You can combine multiple blocks for a full-size blanket, use it as a feature square in a sampler afghan, or even make a pillow front. It pairs well with simple joining methods to keep the texture as the main focus.
FAQ
This block measures approximately 8 inches x 8 inches (20 x 20 cm) when finished. The size may vary slightly depending on your yarn, hook size, and personal tension.
Worsted weight yarn works beautifully for this design. It provides good stitch definition, which helps highlight the 3D texture of the block. You can use other yarn weights, but the finished size will change.
This afghan block is perfect for making blankets, throws, and modular projects like pillows or tote bags. You can use it as a feature square or combine multiple blocks to create a larger project.
Yes. To adjust the size, you can use a different yarn weight and hook size or add extra repeat rows. Using lighter yarn will make the block smaller, while bulkier yarn will make it larger.
Related Crochet Patterns & Tutorials
The Third Dimension 8 Inch Afghan Block is a simple way to add rich texture and depth to your crochet projects. Whether you use it to build a cozy blanket, design a statement pillow, or mix it with other squares for a sampler afghan, this block is both fun and versatile. Save this pattern to Pinterest for later or explore more of my free crochet block patterns to keep your next project inspired and growing.
Happy crocheting!
Join the Oombawka Design Crochet Facebook Group!
Share your project photos, ask questions, and connect with other crocheters using Oombawka Design Crochet patterns and tutorials. We’d love to see your progress and finished makes! Join us here.
Connect with Me
Follow me on Facebook, Pinterest, and Instagram for the latest updates.
Love Furls Crochet?
Use my discount code OOMBAWKA2025 to receive 15% off the Furls Crochet Collection. Limit 1 use per customer. Expires December 31, 2025.
Love Shady Lane Original Crochet Designs?
Use code OOMB for 15% off any pattern on the Shady Lane website, or code OOMBAWKA in her Etsy Shop. Expires December 31, 2026.
I am working this pattern. Mine is wanting to go sideways. Is it me or just how the pattern goes until I block it. All my stitches match up and are even
Hi Lois 🙂 You can print or save a PDF copy using the PrintFriendly option in the post. I wrote a post about how to do this : https://oombawkadesigncrochet.com/how-do-i-print-your-free-patterns/
All the best 🙂 Rhondda
I love the pattern. How can I save it? I tried scanning it, but it didn’t work. Your showing how it is done with pictures is
the best way to learn the pattern. Thank you.
Hi June, Thank you 🙂 If you have any questions please just message me! Have a Happy New Year, Rhondda
Thank you so much Marcie 🙂
Thank you for the instructions to this pattern. I had tried it before but got lost. Your instructions with the pictures look easy to follow.
Thanks again
This is so wonderfully written and pictured that even I, who has trouble following written directions can follow this. Thank you.