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Mosaic stitch

Little woven squares, each made of three diagonals. Your first patterned filling stitch — and a very satisfying one.

Framed needlepoint canvas spelling MOSAIC in mosaic stitch
The beauty portrait — the stitch spelled in its own texture. Same frame and crop across every stitch in the library.
One mosaic block up close: a short diagonal, a long diagonal corner to corner, and a short diagonal on a square tile

What the texture looks like

Worked up close, one block: a short diagonal, a longer one corner to corner, and a short one — three parallel diagonals filling a little square.
Difficulty
Ready for more  Your first patterned stitch.
Appearance
Rows of small, neat woven squares.
Coverage
A good textured fill with a bit more depth than plain tent.
Good for
Small backgrounds · borders · patterned areas · checkerboards.
You'll need
Tapestry needle · one thread color · 13-mesh canvas (canvas with 13 holes per inch).
Exactly how to make it

One little square at a time

Completed stitches are shown in blush, the stitch you're making now in red, and the next hole to come up through is circled in blue. One square is three stitches: small, long, small.

1
Step 1 — Come up at 1, go down at 2 — a small tent stitch over one intersection.12
Come up at 1, go down at 2 — a small tent stitch over one intersection.
2
Step 2 — Come up at 3, go down at 4 — a longer diagonal over two, corner to corner.34
Come up at 3, go down at 4 — a longer diagonal over two, corner to corner.
3
Step 3 — Come up at 5, go down at 6 — a second small tent stitch closes the little square.56
Come up at 5, go down at 6 — a second small tent stitch closes the little square.
4
Step 4 — Come up at 7, go down at 8 — start the next square beside it: small…78
Come up at 7, go down at 8 — start the next square beside it: small…
5
Step 5 — Come up at 9, go down at 10 — …long across the middle…910
Come up at 9, go down at 10 — …long across the middle…
6
Step 6 — Come up at 11, go down at 12 — …and small again. Each unit is a tidy woven square.1112
Come up at 11, go down at 12 — …and small again. Each unit is a tidy woven square.
How the squares tile

From one block to a field

Every block is the same trio — short, long, short. Set them side by side and they tile into a field of even little squares, all leaning the same way.

Four completed mosaic blocks arranged two by two; each block is three parallel diagonals on its own square tile
Four completed blocks, two by two — the square repeat is clear.
One completed mosaic block on the return row: a short diagonal, a long diagonal corner to corner, and a short diagonal filling a square
On the return row you work back the other way — but each block is still short, long, short. A complete block, unchanged.
This is normal: the first few squares feel fiddly and the count feels slow. Once the small-long-small rhythm clicks, the little squares line up on their own.
What yours should look like

Front and back

A field of repeated mosaic blocks, each a short-long-short trio of parallel diagonals, all the same direction
Front — a field of repeated square blocks, each one three parallel diagonals, all leaning the same way.
Back — short carries stepping between the units.

Common mistake — and the fix

Don’t skip the long middle diagonal. Small-long-small is what makes the square read as a square; three small stitches just make tent stitch again.

Keep going

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Pairs well with: ScotchTentBrick
Written for absolute beginners, in plain language.
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