Colin Harper Throw Pillow – Free Crochet Pattern in 8 Sizes | Basic C2C Throw Pillow worked in HDC Boxes

This is a free crochet pattern and video tutorial showing how to crochet the Colin Harper Throw Pillow, which is a Basic C2C Throw Pillow worked in HDC Boxes with 8 sizes included.

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

Even though it’s Summer time, I have got Fall on my mind, and this is the first project that came to mind – a throw pillow made with corner to corner (C2C) boxes worked in half double crochet, and appliqued with falling leaves – I will use my Basic Leaf 2 Ways crochet pattern.

I’ll look similar to my Fall Inspired Lightweight C2C Scarf, but in throw pillow form.

And hopefully will be a good pair to my Fall Vibes Square that I’m hoping to turn into a throw pillow soon too.

Step one was to create the front of the throw pillow, which I accomplished last month. I ended up working up 12 sizes for this afghan square, and you can find that in my Basic C2C Afghan Square in HDC Boxes. You can create lots of matching pieces with this afghan square pattern!

Step two is creating the back panels, and assembling, which you’ll find in this post. I love envelope style pillows so I can easily switch the covers out depending on my mood or the time of year, plus no guess work in stuffing, and it makes washing very easy too.

Step three will be appliqueing on the leaves, which I will share in another post soon.

How Do You Crochet a Simple Envelope Style Throw Pillow?

Step 1: Crochet a square to your desired size for the front panel.

Step 2: Crochet two back panels that overlap at least 3″, and are the same width as your front panel.

Step 3: With wrong sides facing up, lay the back top panel down, then lay the back bottom panel down with the two pieces overlapping, then lay the front panel on top with the wrong side facing down and line the stitches up all the way around.

Step 4: Seam through all the layers to join – my preferred way is to single crochet the layers together, and I do this with the right side of the pillow facing up to get the nicest, most defined edge.

How Do You Crochet a Simple Throw Pillow in C2C HDC Boxes?

If you do not want to crochet an envelope style throw pillow, you can crochet two front panels, and seam them together, stuffing with Poly-fil before closing all the way up. Easy peasy throw pillow! And gauge isn’t essential – you just need two squares that are the same size.

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What Supplies Do I Need to Crochet a C2C Throw Pillow?

• 397 (541, 692, 921, 1146, 1401, 1660, 2047) Yards Total of Worsted Weight Yarn – I used Red Heart Super Saver in Buff and Soft White
• I9/5.5mm Crochet Hook
• Tapestry Needle
• Soft Tape Measure (if gauge is essential for your project)
• Envelope Style: Pillow Form – I get mine at JoAnn, but there are a lot of options on Etsy, and on Amazon
• Closed: Poly-fil Stuffing

Material Notes:

Similar Yarns: Caron’s One Pound, Bernat’s Super Value.

The yardage has been tested with the 16″ size, and the rest are estimated based on this. If you want to split the colors like I did (Buff on Front, Soft White on Back), then you’ll need the following yardages shown as Buff; Soft White:

• 12″: 185; 212
• 14″: 257; 284
• 16″: 329; 363
• 18″: 438; 483
• 20″: 545; 601
• 22″: 668; 733
• 24″: 800; 860
• 27″: 969; 1078

Sizes Included:

12″ (14″, 16″, 18″, 20″, 22″, 24″, 27″)

Gauge:

6 Squares = 4.13″ (4 1/8″) Wide by 3.63″ (3 5/8″) Tall

Abbreviations (US Terms):

• HDC – Half Double Crochet (Photo Tutorial)
• SC – Single Crochet (Photo Tutorial)
• C2C in HDC – Corner to Corner in Half Double Crochet Boxes (Photo Tutorial)

Pattern Notes:

All panels grow from the bottom corner upward diagonally. This is the nature of C2C, or Corner to Corner.

Beginning chain 1 in the boxes and the skipped stitches from the chain 5 does count as a stitch. In the border, the chain 1, does not count as a stitch.

A box is comprised of four half double crochet’s.  

The “space under the same chain joined to” is defined as the space between the last two half double crochets of the previous rows box.

Working the final half double crochet into the top of the chain from the previous row helps to keep the edge more even. After completing the first box, you may also need to lightly tug on it to keep it even as well.

Instructions for smallest size – 12″ shown with 14, 16, 18, 20, 22, 24 and 27 in parenthesis.

There are a lot of words and numbers to this pattern, and that can seem intimidating or daunting, but basically, you are going to build your panel one row at a time increasing until you get the size you’re looking for, [where applicable, maintaining the number of boxes to meet the width desired], then decreasing back down to one box. The border will add 0.5″ to the finished size, so keep that in consideration while increasing.

As you work your panels, the row you stop increasing on will measure 0.5” larger then the finished measurement. It’s safe to say this will be the finished size after the border is added, and the fabric “rests”. If after you finish the first round of the border, your panel is not measuring large enough, you can add another round to the border working one stitch per single crochet and per chain space all the way around increasing in the corners.

Colin Harper Throw Pillow, aka Basic C2C Throw Pillow worked in HDC Boxes, Video Tutorial:

Front Panel Measurement (Width by Height):

• 12″: 12.38″ (12 3/8″) by 12.13″ (12 1/8″)
• 14″: 14.13″ (14 1/8″) by 13.63″ (13 5/8″)
• 16″: 16″ by 15.75″ (15 3/4″)
• 18″: 18.38″ (18 3/8″) by 18.25″ (18 1/4″)
• 20″: 20.38″ (20 3/8″) by 20.25″ (20 1/4″)
• 22″: 22.38″ (22 3/8″) by 21.75″ (21 3/4″)
• 24″: 24.38″ (24 3/8″) by 24.25″ (24 1/4″)
• 27″: 26.88″ (26 7/8″) by 26.75″ (26 3/4″)

Front Panel, Basic HDC C2C Throw Pillow Written Tutorial:

Chain 5. HDC into the 3rd chain, and into each of the next 2. (1 Box)

Row 2: Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box. Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (2 Boxes)

Row 3: (I) Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box; 
(II) Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(III) Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (3 Boxes)

Rows 4 – 21 (25, 28, 33, 37, 41, 45, 50): Using Row 3 as a base, you will continue working in the same manner repeating (II) one extra time each row to increase the number of boxes by one each row. At the end, you will have the same number of boxes as rows.

Begin Decreasing:

Row 22 (26, 29, 34, 38, 42, 46, 51): Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(IV) (chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box) 19x (23x, 26x, 31x, 35x, 39x, 43x, 48x);
Chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. [20 (24, 27, 32, 36, 40, 44, 49) Boxes]

Work Until You Have 3 Boxes Left: Using the previous row as a base, you will continue working in the same manner repeating (IV) one less time each row to decrease the number of boxes by one each row. Continue working until you have 3 boxes left.

2 Boxes: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box, chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. (2 Boxes)

1 Box: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to. Skip the next 3 HDCs, slip stitch into the top of the last stitch. (1 Box)

Border: Chain 1. SC into the space just under the same chain joined to, [chain 1, (SC into the next space in between boxes, chain 1) across to the corner, (SC, chain 2, SC) into the corner] 4x, chain 1, slip stitch join to the 1st SC.

Fasten off, and weave in ends.

Back Bottom Panel Height:

• 12″: 5.88″ (5 7/8″)
• 14″: 7″
• 16″: 8.13″ (8 1/8″)
• 18″: 9.25″ (9 1/4″)
• 20″: 9.88″ (9 7/8″)
• 22″: 11″
• 24″: 12.13″ (12 1/8″)
• 27″: 13.38″ (13 3/8″)

Back Bottom Panel, Basic HDC C2C Throw Pillow Written Tutorial:

Chain 5. HDC into the 3rd chain, and into each of the next 2. (1 Box)

Row 2: Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box. Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (2 Boxes)

Row 3: (I) Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box; 
(II) Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(III) Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (3 Boxes)

Rows 4 – 10 (12, 14, 16, 17, 19, 21, 24): Using Row 3 as a base, you will continue working in the same manner repeating (II) one extra time each row to increase the number of boxes by one each row. At the end, you will have the same number of boxes as rows.

Now that this panel is as tall as we need, we will no longer begin with a chain 5 on this side. We will slip stitch over to form an even edge, then work across adding a box to the width so it will get wider to match the front panel. Then we will begin the next row with a chain 5 to form an extra box to add to the width, work across the row only up to the height of the last box to maintain the edge. You will maintain the same number of boxes in this process.

Work until you have 21 (25, 28, 33, 37, 41, 45, 50) boxes wide.

Begin Decreasing:

Next Row: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(IV) (chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box) 8x (10x, 12x, 14x, 15x, 17x, 19x, 22x);
Chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. [9 (11, 13, 15, 16, 18, 20, 23) Boxes]

Work Until You Have 3 Boxes Left: Using the previous row as a base, you will continue working in the same manner repeating (IV) one less time each row to decrease the number of boxes by one each row. Continue working until you have 3 boxes left.

2 Boxes: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box, chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. (2 Boxes)

1 Box: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to. Skip the next 3 HDCs, slip stitch into the top of the last stitch. (1 Box)

Border: Chain 1. SC into the space just under the same chain joined to, [chain 1, (SC into the next space in between boxes, chain 1) across to the corner, (SC, chain 2, SC) into the corner] 4x, chain 1, slip stitch join to the 1st SC.

Fasten off, and weave in ends.

Back Top Panel Height:

• 12″: 9.25″ (9 1/4″)
• 14″: 9.88″ (9 7/8″)
• 16″: 11″
• 18″: 12.13″ (12 1/8″)
• 20″: 13.38″ (13 3/8″)
• 22″: 14.63″ (14 5/8″)
• 24″: 15″
• 27″: 16.75″ (16 3/4″)

Back Top Panel, Basic HDC C2C Throw Pillow Written Tutorial:

Chain 5. HDC into the 3rd chain, and into each of the next 2. (1 Box)

Row 2: Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box. Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (2 Boxes)

Row 3: (I) Chain 5, and turn. HDC into the 3rd chain, and into each of the next 2, slip stitch into the top corner stitch of the next box; 
(II) Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(III) Chain 1, work 2 HDC into the space under the same chain joined to, HDC into the top of the last stitch. (3 Boxes)

Rows 4 – 16 (17, 19, 21, 24, 26, 27, 30): Using Row 3 as a base, you will continue working in the same manner repeating (II) one extra time each row to increase the number of boxes by one each row. At the end, you will have the same number of boxes as rows.

Now that this panel is as tall as we need, we will no longer begin with a chain 5 on this side. We will slip stitch over to form an even edge, then work across adding a box to the width so it will get wider to match the front panel. Then we will begin the next row with a chain 5 to form an extra box to add to the width, work across the row only up to the height of the last box to maintain the edge. You will maintain the same number of boxes in this process.

Work until you have 21 (25, 28, 33, 37, 41, 45, 50) boxes wide.

Begin Decreasing:

Next Row: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box;
(IV) (chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box) 14x (15x, 17x, 19x, 22x, 24x, 25x, 28x);
Chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. [15 (16, 18, 20, 23, 25, 26, 29) Boxes]

Work Until You Have 3 Boxes Left: Using the previous row as a base, you will continue working in the same manner repeating (IV) one less time each row to decrease the number of boxes by one each row. Continue working until you have 3 boxes left.

2 Boxes: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top corner stitch of the next box, chain 1, work 2 HDC into the space under the same chain joined to, skip the next 3 HDCs, slip stitch into the top of the last stitch. (2 Boxes)

1 Box: Turn. Slip stitch into the 2nd stitch, and each of the next 2. Chain 1, work 3 HDC into the space under the same chain joined to. Skip the next 3 HDCs, slip stitch into the top of the last stitch. (1 Box)

Border: Chain 1. SC into the space just under the same chain joined to, [chain 1, (SC into the next space in between boxes, chain 1) across to the corner, (SC, chain 2, SC) into the corner] 4x, chain 1, slip stitch join to the 1st SC.

Fasten off, and weave in ends.

How to Assemble an Envelope Style Crochet Throw Pillow:

Lay the top back panel down with the wrong side facing up.

Lay with top bottom panel on top of the other panel also with the wrong side facing up overlapping about 3″ – it doesn’t have to be perfect because you’ll get it there in the next step.

Lay the top panel down on top of the back panels with the wrong side facing down, and line up the sides.

You can use sewing pins or locking stitch markers to keep everything in place, but what I like to do is just work with the front panel and the top back panel until I get to the point where I add in the bottom back panel, then I realign everything.

With the front side of the pillow still facing you, attach yarn into any stitch working through both layers, and chain 1. I like to do it into the first single crochet after the top right corner.

Evenly SC through each single crochet stitch, and each chain space working through all given layers (mostly two layers, but will be three layers in the center where the two back panels overlap), and work a “SC, chain 1, SC” in each corner. This will produce a corner that is more rounded, for a more square corner, add more chains. Once back to the beginning, slip stitch join to the 1st SC, and fasten off. Weave in final ends, and then add pillow form.

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