UNIQUE Seaside Mug Rug Crochet Pattern (Free!)

Looking for a quick & easy crochet mug rug pattern to make this summer? The Seaside Mug Rug features unique shell stitches reminiscent of the beach! I have always loved the look of crocheted mug rugs, so I’m excited that I get to show you my very own take on one today.

Without further ado, meet the Seaside Mug Rug! Find the free crochet pattern instructions below, or purchase a print-friendly, ad-free PDF here.

Free Mug Rug Crochet Pattern

What is a mug rug?

If you’re wondering what a mug rug is anyway, it’s really just a simple coaster. While sewn mug rugs are often large – big enough for a mug and a sweet treat – I’ve found that crochet mug rugs are more like a square or rectangular coaster with fringe.

The key really is the fringe, because it gives it the look of a mini rug, you know?

Mug rugs are great for having around your house when you need to set down drinks of all kinds—whether it’s a smoothie, your morning coffee, or something like this delicious white chocolate mocha!

Easy Crochet Mug Rug

How do you crochet a mug rug?

It is pretty simple to crochet a mug rug. You can literally use any combination of stitches to create a square or rectangle…and then add fringe!

In the case of this free pattern, we’ll be using a lot of triple crochet and a unique shell stitch to get a finished mug rug reminiscent of the beach.

Seaside Mug Rug - FREE Crochet Pattern

How big should a mug rug be?

You can make mug rugs of all different sizes! The size of this pattern in particular is 4.5″ by 6.5″, which is pretty standard. I’ve also seen crochet mug rugs that are 4″ by 5″, 4″ by 7″, and a lot of other sizes in between!

Mug Rug Coaster Pattern

Ad-Free Mug Rug Coaster Pattern

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Mug Rug Crochet Pattern Free

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Easy Mug Rug Crochet Pattern

Ready to make this mug rug for yourself? It works up literally SO FAST! Let’s get started!

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Video Tutorial

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Easy Free Mug Rug Crochet Pattern



  1. Ch 4 at beginning of row counts as a tr.
  2. If you have any trouble at all with this pattern, see the tutorial on pages 3-6


Approximately 4.5” wide and 6.5” long (INCLUDES 1” fringe)

Abbreviations/Stitches Used (U.S.) 

Chain – ch

Single crochet – sc

Triple crochet – tr

Repeat – rep

Skip – sk

Space(s) – sp(s)

Stitch(es) – st(s)

Beginning – beg

Special Stitch:

Shell: Tr into indicated stitch. (Ch 1, tr into same space) 4 times.

Written Instructions:

Mug Rug

Ch 18.

Row 1 (WS): Sc in second ch from hook and each ch across. (17 sc)

Row 2 (RS): Ch 4, tr in next sc. Tr in next 3 sc. Sk 3 sc, sh in next sc. Sk 3 sc, tr in last 5 sc. Turn.

Row 3: Ch 4, tr in next tr. Tr in next 3 tr. Sh in the middle tr of next sh. Tr in last 5 tr. Turn.

Row 4-6: Repeat row 3.


For the border, we will simply be making sc around the entire mug rug. 

Step 1: Start by going down the left side of the mug rug, working on the side of the last tr of the row you just made. Work your way down the entire left side. I recommend doing 2-3 sc per tr. I found it works best to do 2 sc in the rows that started with chs, and 3 sc in the rows that started with tr. However, you can do whatever works best with your tension. The goal is just to get the side straight.

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Step 2: When you’ve reached the first corner, do 2 sc in the corner. Then work sc all across the bottom of the mug rug – the chain row.

Step 3: When you’ve reached the second corner, do 2 sc in the corner. Then work sc up the other side of the mug rug. This process will be the same as you did for the first side.

Step 4: When you’ve reached the third corner, do 2 sc in the corner. Note: this corner is a little tricky because there isn’t a specific stitch to really work in. I recommend just doing a few extra sc on the side as the corner. Next, work sc across the top as follows: 

Sc in next 4 tr. Sk first tr of sh, sc in ch-sp. (Sk next tr of sh, sc in ch-sp) 3 times. Sk last tr of sh, sc in next 4 tr. The final tr of this row should be about where you do the corner stitches. Work one last sc in the same space where you started the border. This will form the last corner. Sl st to first sc. Fasten off.


Add fringe to the top and bottom if desired. My fringe was about 1-1.5” long when finished. I cut 3 strands of yarn at about 3” long for each set (these strands are folded in half to do the fringe. When you’re done it is half as long and looks like 6 strands per set). If you’re unfamiliar with how to add fringe with this method, please check out this video.


Steam Block your coaster so it will open up and look beautiful! Weave in all ends.

Crochet Mug Rug Tutorial

Need some help making these coasters? These step by step photos should help. 🙂

Make your row of 17 sc. Then make row 2, with 5 tr on each edge and a shell in the middle. Photo below shows what row 2 looks like:

Crochet Mug Rug Tutorial - Row 2

For row 3, turn and ch 4. Then work 4 regular tr as shown below.

Mug Rug Crochet Tutorial - row 3

Make your shell in the MIDDLE of the previous shell. This is what it looks like when you begin the shell:

Mug Rug Crochet Tutorial - shell stitch

This is what the shell should look like finished:

Crochet Mug Rug Tutorial - shell stitch

Work 5 regular tr after the shell, and then just keep repeating row 3! This is what your work should look like after 4 rows total:

Mug Rug Crochet Tutorial

Making the border

To make the border of the mug rug, you’ll just be going around in even sc, with 2 sc in each corner.

This is what the top of the border should look like. As you can see you will work sc into the ch-sps of the shell, but skip the triple crochets of the shell.

Crochet mug rug border

This is what the side of the border looks like. As I mentioned, I did 3 sc in the sides of the regular triple crochet, whereas I usually did just 2 sc in the sides of the ch-4 sps. You can do it however works best to make the edges straight!

mug rug crochet border tutorial

That’s really all there is to making these easy crochet mug rugs!

I hope you guys enjoyed this pattern – it was such fun for me to design. I love quick projects!

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Happy Crocheting!

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