Mosaic Knit Placemat: Free Knitting Pattern for a Stunning Table Accessory

There’s something deeply satisfying about sitting down to a meal at a table dressed with handmade textiles. Placemats are one of those small but meaningful touches that elevate an everyday dining experience, and when you’ve made them yourself, every meal feels just a little more special. This free mosaic knit placemat pattern is the perfect project for knitters who want to explore colorwork without the complexity of stranding or Fair Isle techniques. Mosaic knitting uses only one color per row, making it approachable for confident beginners and endlessly rewarding for experienced knitters looking for a satisfying, meditative project.

Whether you’re making these placemats as a gift, refreshing your own dining table for the season, or simply looking for a quick and practical knitting project, this pattern delivers beautiful results with a minimal learning curve. Let’s dive into everything you need to know about mosaic knitting, the materials for this project, and the full pattern itself.

What Is Mosaic Knitting?

Before we get into the pattern itself, it’s worth taking a moment to understand what makes mosaic knitting so clever and so beginner-friendly compared to other colorwork techniques.

Mosaic knitting was popularized by Barbara G. Walker, who introduced the technique in her influential stitch treasury books. The core principle is simple: you work with two colors, but you only carry one color per row (or round if working in the round). The illusion of intricate interlocking patterns is created not by carrying yarn across the back of the work, but by slipping stitches from the previous row. When you slip a stitch, you’re essentially pulling it up from the row below, which allows the contrast color to “show through” the current row without you ever having to handle both yarns at once.

The result is a fabric that looks far more complicated than it is to create. Geometric shapes, chevrons, Greek keys, basketweave effects, and diamond lattices are all achievable through mosaic knitting, and yet your hands are always doing one of the simplest possible things: knitting, purling, or slipping.

This makes mosaic knitting ideal for projects like placemats, where you want visual interest and texture, but you also want the finished object to lie flat, have good stitch definition, and hold up to regular use and washing.

Why Knit Your Own Placemats?

Knitted placemats occupy a sweet spot between practicality and artisanship. They’re large enough to be a satisfying knit, but small enough to finish in a reasonable amount of time. A single placemat can be completed in a few evenings of casual knitting, making this pattern excellent for destashing yarn, using up leftovers from bigger projects, or trying out a new colorway combination before committing to a larger blanket or throw.

Knitted placemats also have a warmth and softness that woven or vinyl alternatives simply can’t match. They cushion the clink of dishes, add a layer of insulation under hot plates, and bring a handcrafted quality to your table that no store-bought product can replicate. They make wonderful gifts for housewarmings, weddings, holidays, and birthdays, especially when made in colors that complement the recipient’s kitchen or dining room.

Cotton and cotton-blend yarns are the classic choice for placemats because they’re durable, washable, and have excellent stitch definition that really lets the mosaic pattern sing. We’ll talk more about yarn choices below.

Materials You’ll Need

Yarn: Approximately 80–100 yards of Color A (main color) and 60–80 yards of Color B (contrast color) in a worsted-weight or DK-weight cotton or cotton-blend yarn per placemat. Good options include Lion Brand 24/7 Cotton, Paintbox Simply DK, Paintbox Simply Worsted, Drops Safran, or any smooth, tightly twisted cotton or cotton-blend yarn in the same weight.

Needles: US size 5 (3.75 mm) for DK weight, or US size 7 (4.5 mm) for worsted weight. The key is to knit on the tighter side of the yarn’s recommended needle range, which creates a denser fabric that lies flat and holds up well on the table.

Notions: Scissors, a tapestry needle for weaving in ends, and a ruler or measuring tape.

Gauge: Gauge is flexible for this project, but aim for approximately 20–22 stitches and 28–30 rows over 4 inches (10 cm) in stockinette stitch with DK weight, or 18–20 stitches and 24–26 rows with worsted weight. A slightly tighter gauge is preferable to a looser one for this project.

Finished Dimensions: Approximately 12 inches wide by 16 inches long (30 cm x 40 cm). These dimensions can be easily adjusted by casting on more or fewer stitches in multiples of the pattern repeat.

Choosing Your Colors

Color choice is where mosaic knitting really becomes a creative playground. Because you’re working with only two colors throughout the entire project, the contrast between them is everything. High-contrast pairings — think navy and cream, charcoal and ochre, forest green and natural, burgundy and blush — create dramatic, graphic results that really make the geometric pattern pop.

Low-contrast pairings — like two shades of the same color family, or tonal combinations like sage green and dusty mint — give a more subtle, sophisticated result that feels quieter and more tone-on-tone. Both approaches are beautiful; it just depends on the aesthetic you’re going for.

If you’re making these as a matching set, consider doing some with Color A and Color B swapped. Using the same two yarns but alternating which color is “dominant” creates a beautiful coordinated look with natural variation, as if the placemats belong together without being completely identical. It also uses your yarn very efficiently.

Pattern Notes

Slipping Stitches: All slipped stitches in this pattern are slipped purlwise with the yarn held to the wrong side (wyib on knit rows, wyif on purl rows). This is the standard default for mosaic knitting and keeps the floats on the back of the fabric.

Working the Pattern: Each chart row represents two actual knitting rows: one right-side (RS) knit row and one wrong-side (WS) purl row. When you work Row 1 of the chart in Color A, you knit across the RS, then turn and purl back across the WS in the same color (slipping the same stitches that were slipped on the RS row). Then you drop Color A, pick up Color B, and work the next chart row the same way.

Color Changes: Colors are changed at the beginning of every other pair of rows. When you’re not using a color, simply let it hang at the side. Because you’re only carrying yarn up two rows at a time, there are no long floats along the selvedge and weaving in ends is minimal.

Reading the Chart: Color A is represented by squares and Color B by circles (or in written instructions, by their letter designation). Filled squares are knit stitches; open squares are slipped stitches. The chart is read from right to left on RS rows and from left to right on WS rows.

Abbreviations

CO — cast on
K — knit
P — purl
SL — slip stitch purlwise
wyib — with yarn in back
wyif — with yarn in front
RS — right side
WS — wrong side
Rep — repeat
PM — place marker
BO — bind off

The Pattern

Cast On

Using Color A and your chosen needle size, CO 61 stitches using a long-tail cast on or your preferred method. The stitch count is based on a 6-stitch repeat plus 1 edge stitch on each side, so you can adjust by adding or subtracting multiples of 6.

Border Setup

Work 4 rows in garter stitch (knit every row) in Color A before beginning the mosaic pattern. This creates a tidy lower border and helps the work lie flat from the very start. At the end of these 4 rows, you will be ready to begin the mosaic section from the RS.

Mosaic Pattern: Geometric Diamond Lattice

This pattern is a classic mosaic design built on a 6-stitch, 12-row repeat. It creates an interlocking diamond lattice that is visually striking but straightforward to execute once you’ve worked through the first repeat.

Row 1 (RS, Color A): K1, K5, SL1 wyib; rep from to last 6 sts, K6.
Row 1 (WS, Color A): K1, P4, SL1 wyif, P5; rep from to last 2 sts, SL1 wyif, K1.

Row 2 (RS, Color B): K1, SL1 wyib, K3, SL1 wyib, K1; rep from to last 6 sts, SL1 wyib, K3, SL1 wyib, K1.
Row 2 (WS, Color B): K1, SL1 wyif, P3, SL1 wyif, K1, SL1 wyif, P3; rep from to last 2 sts, SL1 wyif, K1.

Row 3 (RS, Color A): K1, K1, SL1 wyib, K1, SL1 wyib, K2; rep from to last 6 sts, K1, SL1 wyib, K1, SL1 wyib, K2.
Row 3 (WS, Color A): K1, P1, SL1 wyif, P1, SL1 wyif, P3; rep from to last 5 sts, SL1 wyif, P1, SL1 wyif, P1, K1.

Row 4 (RS, Color B): K1, K2, SL1 wyib, K1, SL1 wyib, K1; rep from to last 6 sts, K2, SL1 wyib, K1, SL1 wyib, K2.
Row 4 (WS, Color B): K1, P2, SL1 wyif, P1, SL1 wyif, P3, SL1 wyif, P1; rep from to last 2 sts, SL1 wyif, K1.

Row 5 (RS, Color A): K1, SL1 wyib, K1, SL1 wyib, K3; rep from to last 6 sts, SL1 wyib, K1, SL1 wyib, K3.
Row 5 (WS, Color A): K1, P3, SL1 wyif, P1, SL1 wyif, P3, SL1 wyif; rep from to last 2 sts, P1, K1.

Row 6 (RS, Color B): K1, K4, SL1 wyib, K1; rep from to last 6 sts, K4, SL1 wyib, K1.
Row 6 (WS, Color B): K1, SL1 wyif, P5, SL1 wyif; rep from to last 5 sts, P4, K1.

Repeat Rows 1 through 6 (all RS and WS rows combined) until your work measures approximately 14.5 inches from the cast-on edge, ending after completing a full 6-row repeat with the WS row of Row 6 in Color B.

Closing Border

After the final pattern repeat, work 4 rows of garter stitch in Color A, mirroring the opening border. This creates a tidy, symmetrical finish at both ends of the placemat.

Bind off all stitches knitwise on the RS using Color A. The bind off should be firm but not tight — if your bind-off tends to be tight, go up one needle size for this step.

Finishing

After binding off, cut both yarn tails leaving at least 6 inches for weaving in. Using a tapestry needle, weave all ends in along the wrong side of the fabric, following the path of stitches in the same color to keep everything invisible from the front.

The side edges of the placemat will show color-change stripes where the two colors alternate up the selvedge. These look neat and tidy if you’re consistent about carrying your yarn up the same way each time, but if you prefer a cleaner edge, you can weave them in as you go or trim and re-join at each color change (at the cost of more ends to weave in).

Blocking: Wet blocking is highly recommended for cotton yarn. Soak the finished placemat in cool water for 20–30 minutes until fully saturated, then gently press out excess water in a towel without wringing. Lay flat on a blocking mat or clean surface, pin or smooth into the desired dimensions, and allow to dry completely. Blocking will even out your stitches, open up the mosaic pattern beautifully, and help the placemat lie perfectly flat on the table. This step genuinely transforms the finished object — the before and after is striking.

Tips for Success

Take your time on the first pattern repeat. Mosaic knitting has a rhythm that feels slightly unfamiliar at first, but after one full 12-row repeat (all 6 chart rows in both RS and WS iterations), it clicks into place and becomes genuinely meditative. Many knitters find that after the first repeat, they can work the pattern while watching television or listening to a podcast without needing to reference the written instructions at all.

Use stitch markers to separate your pattern repeats. Place a marker after every 6 stitches across your cast-on row. This makes it easy to spot any errors within a single repeat rather than discovering a problem rows later.

Keep your slipped stitches loose. This is the most common issue for newer mosaic knitters. If your slipped stitches are too tight, the fabric will pucker and pull horizontally. Practice slipping with a relaxed tension, allowing the yarn to form a gentle float across the back of the slipped stitch rather than drawing it tight.

Track your colors on paper. Before you start, write down “Row 1: Color A, Row 2: Color B, Row 3: Color A” and so on and check them off as you go. This prevents the classic mosaic error of picking up the wrong color at a row change, which can be very difficult to spot until you’re several rows ahead.

Making a Matching Set

This pattern is perfect for making a set of four or six matching placemats. If you’re making a set, work all placemats at the same time if possible, or at least start each one from the same dye lot and track your row counts carefully to ensure consistent sizing.

Consider mixing and matching your two colors across the set for variety. You might make two placemats with navy as Color A and cream as Color B, and two more with the colors reversed. The pattern will read as negative and positive versions of the same design, and together they create a beautifully cohesive table setting.

You can also coordinate your placemat set with matching knitted dishcloths or pot holders using the same yarn and the same mosaic stitch pattern worked on fewer stitches. The mosaic diamond pattern works at any scale, so a 37-stitch, 37-row square makes a lovely coordinating dishcloth.

Care Instructions

Cotton and cotton-blend yarns are generally machine washable on a gentle or delicate cycle in cool water. Check the specific care label of your chosen yarn before washing, as some cotton blends with linen or acrylic may have slightly different requirements. Lay flat to dry rather than putting in the dryer, which can cause shrinkage and distortion in knitted fabric. With proper care, these placemats will stay beautiful and functional through years of regular use.

A Note on Yarn Substitutions

This pattern was designed with smooth, tightly spun cotton or cotton-blend yarn in mind, and that remains the top recommendation for best results. However, if you want to experiment with other fiber types, wool works beautifully from an aesthetic standpoint but requires hand washing and is not as practical for table linens. Linen yarn creates an incredibly beautiful drape and stitch definition but can feel stiff at first; it softens with use and washing. Linen is also naturally antibacterial, which makes it a lovely choice for dining table accessories.

Avoid very loosely spun or chunky yarns for this project, as the mosaic pattern requires clear stitch definition to read well visually. Similarly