Sea

Seaweed

Seaweed as a tidy 21 by 21 filet motif with a strong silhouette that survives even on a smaller grid, ideal for nautical blankets, beach-house runners, and bathroom pieces. Load it in the editor to adjust the spacing, add a surrounding frame, or mirror it for a matched pair, then save or print the finished chart.

Grid
21 × 21
Difficulty
Beginner
Mesh count
441
Category
Sea
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Perfect for

Skill level: beginner

If this is one of your earliest charts, you are in safe territory. The outline is bold and simple, so a small miscount rarely shows in the finished piece.

Yarn and hook

Size 10 cotton thread on a steel hook makes a fine seaweed panel; switch to DK or worsted cotton with a 3.5–4 mm hook and it grows into a soft, blanket-weight piece. Stick to one well-defined colour for the motif; the contrast between filled and open squares is what carries the design.

Project ideas

Whether you are making a nautical blanket or a beach-house runner, the seaweed drops in cleanly, ideal for a beach-house gift. Set it on its own, pair it with a matching motif, or run a row of them along an edge.

Who it's for

A seaweed panel makes a thoughtful handmade gift for a sailor, and it fits naturally with a summer make. Add a name or date in editable bitmap lettering to make it a one-of-a-kind keepsake.

Size, printing, and scaling

Expect roughly 5.3 by 5.3 inches at 4 mesh per inch. Drop to fine thread for a smaller piece, or move to worsted to scale it right up. Send the chart straight to print for a clean numbered grid, or resize and re-crop it in the editor first and export a PDF, PNG, or CSV.

Before you start

Hook
3.5–4.5 mm hook
Thread / yarn
DK or worsted-weight cotton
Finished size
5.3 × 5.3 in at 4 mesh/in
  • Print or export a numbered chart from the editor
  • Have your hook and thread or yarn ready
  • 21 rows, worked bottom to top

Learn the technique

How to Read a Filet Crochet Chart

New to charts? Learn exactly how to read this one square by square.

Seaweed filet crochet pattern — FAQ

Can a beginner crochet the seaweed pattern?
Yes. The seaweed is one of the more beginner-friendly charts here — it reads clearly and forgives the odd miscount. If you can work a double crochet and a chain, you can follow it.
What can I make with the seaweed pattern?
It works well as a lone swimmer or a whole underwater scene — think a bathroom set or a coastal cushion, and it is a natural choice for a coastal make.
Can I resize the seaweed chart?
Yes. Open it in the editor and change the grid dimensions, crop it, or tile it. Because every cell is a true block or open mesh, scaling never makes half-stitches.
What yarn works best for this seaweed chart?
Size 10 cotton thread with a steel hook gives a fine, traditional filet; DK or worsted cotton with a larger hook makes a softer, blanket-weight version. A smooth, solid, light colour reads best.
How many stitches is the seaweed pattern?
The chart is 21 by 21 squares — 441 mesh in total, about 58 of them filled. At 4 mesh per inch that finishes roughly 5.3 by 5.3 inches.

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