If you have been following along, in this series of blogs I am sharing how to make my Geometric Squares Crochet Blanket. This crochet blanket features four different crochet squares, each featuring a different geometric design. In case you missed the earlier blogs, check those here:
- The Triangle Puff Square,
- The Square Berry Square,
- The Diamond Treble Square and
- The Hexagon Bobble Square
In this final blog post, I will talk about the final measurements of my blanket, how much yarn I used and how many squares I crocheted, and how I joined the squares and created a border for the blanket.
Check out the video tutorial here – use the timestamps provided to skip to different parts of the tutorial:
How many crochet squares will you need?
This totally depends on how big a blanket you want to make. For my blanket, I crocheted 12 squares of each design. So a total of 48 squares! With the border, my blanket measured 50 inches wide by 69 inches long. As mentioned in previous posts, each square measures 8×8 inches so that is a helpful guide when you are planning your blanket. You can customise your blanket and use fewer designs/squares or use all four but vary how many of each you make.
Before you start joining the crochet squares, I would recommend that you block them – but you can also block your final project as a whole. As I have used acrylic yarn, I placed my blanket on my bed on top of a bedsheet and used a spray bottle to dampen it. I made sure it was the right size and shape. Then I covered it with a clean towel and pressed it for a few seconds with the iron.
This step is not absolutely essential. Your blanket will still look lovely even if you don’t block the squares but it is one little thing you can do to give your blanket an extra good finish.
Preparing for joining the crochet squares
You can join the crochet squares in whichever way you want! However, if you want to achieve the same look as me then you will need to first crochet a border with some white yarn around each square. I used Paintbox Acrylic DK in Paper White (100).
With the right side facing up, make a slip knot and put your hook through any of stitches of your square. Yarn over and slip stitch. Make an SC in the same stitch and then place a single crochet across each stitch and row. Once you have gone round the square, slip stitch to the first stitch, chain one and fasten off your yarn.
The Hexagon Bobble and the Diamond Treble Squares are all made up of 35 rows. But the Berry Square is made up for 33 rows and the Puff Triangle has 37 rows. So for the Berry Square, add 2 extra SCs on each of the sides when you are working on the SCs. For the Triangle Puff, skip 2 rows on each of the sides (I chose to do that at the top and bottom of each side). This will mean that you will have 31 SCs on two of the sides and 35 SCs on the other two across all of your squares.
If you are not familiar with the SC stitch, check out my step by step video tutorial here:
Once you have crocheted the border around all the squares, place them in a pattern that suits you. I placed them in the following way (B = square berry , T = triangle puff, D = diamond treble, H = hexagon bobble):
Making the slip stitch join
I used the slip stitch join to connect the squares first vertically (columns) and then horizontally (rows).
To make the slip stitch join:
- Start by crocheting together the columns of your blanket. Start by taking two squares and place them on a flat surface facing up. Use stitch markers to keep your work straight.
- Make slipknot and put through your hook. Position your yarn underneath the two squares.

- Find the first stitch of that side of your square. Place your hook through the front loop of the crochet square to your right.

- Then place your hook through the back loop of the other crochet square, making sure you are on the first stitch of that side.
- If you have difficulty in identifying the front and the back loop, the font loop is the one facing up and the back look is facing your flat surface when you have your squares laid out. See also the photo below.
Pick up your yarn and yarn over. Pull through all the loops.


- You should repeat this across all the stitches of your crochet square side.
- Once you are done with the first pair of squares, continue joining the next pair in the same way.
- Once your are done with the whole column, CH 1 and fasten off your yarn.
Once you have crocheted all your columns, you can start working on your rows in the same way. When you reach the vertical joins, after you have completed the slip stitch join in the last pair of squares, skip the column join and find the closest to you crochet stitches on the other two squares which have been previously joined – they are easy to spit as they will look slightly elongated. Pick up the front loops on both of these stitches and slip stitch through them. Continue by picking up the font and back loops as before.
How to make the blanket border?
I crochet the border in ‘rows’ by slipstitching in the end to the first stitch and then turning the blanket and continuing to crochet. You can also make the border by crocheting in the round, however, the look and thickness of your border will be different. See photo below.
To make your blanket border:
- Turn your blanket so that the wrong side is facing you as you crochet. Make a slipknot and put through your hook.
- Choose a point in your blanket, it does not matter where, and put the hook through the stitch. Yarn over and make a slipstitch. Make an SC in the same stitch. Place a stitch marker to more easily spot which your first stitch is.
- Place 1 SC in each of the stitches along your blanket.
- When you reach the edge of each square place 2 SCs in the last stitch before the join. Then, for the join between two squares, place two SCs in the last ‘braid’ or ‘V’ shape stitch connecting the two squares on the front part of your blanket. Then, place another 2 SCs in the first stitch of the square after your join. You will need to make two decreases on the next row, so feel free to place a stitch marker on the second SC of your first square, and the second SC placed on the join stitch.
- For the corners, place 3 SCs on a corner stitch, you can mark the middle stitch with a stitch marker.
- Continue placing SCs across the edge of your blanket. When you have made your last SC, slipstitch into your first SC and CH 1.
- For the second row of your border, turn your piece around and SC along the blanket. When you reach the edge of each square, where you previously placed two SCs, place 1 SC in one and then SC two together two times. If you placed stitch markers, this will help you identify the relevant stitches. To make one decrease, place your hook through your stitch, yarn over and pull through. Then, place your hook through the next stitch, yarn over and pull through. Yarn over and pull through all three loops. Continue by placing 1 SC in each stitch and placing 3 SCs in the corners.
- For the next two rows, simply SC across all stitches but continue making the increases on the corners.
- Finish by slipstitching into the first stitch and CH 1. Do not fasten off your yarn, you still need it to make the crab stitch edge!
How to make the crab stitch edge?
Now make one more row with the crab stitch to finish off your blanket. The crab stitch is a reverse SC. To make the crab stitch:
- Take your hook and place it in the previous stitch. If you hold your loop onto your hook with your index easier it will make this easier.
- Put your hook through the stitch and yarn over.
- Pull through, yarn over and pull though all loops.
Try to keep your tension even and not too tight as this help make the border look good. When you have placed one crab stitch or reverse SC into all stitches, slipstitch to the first stitch.
How much yarn will I need?
This will depend on your preferred size, but for my blanket I used the following approximate amount of Paintbox DK Acrylic yarn:
- 4 skeins of Paper White (100)
- 3 skeins of Raspberry Pink (143)
- 3 skeins of Melon Sorbet (116)
- 3 skeins of Vintage Pink (155)
- 2 skeins of Dusty Rose (141)
- 2 skeins of Peach Orange (154)
- 2 skeins of Mustard Yellow (123)
- 1 skein of Tea Rose (142)
- 1 skein of Bubblegum Pink (150)
Happy Crochet
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