Test Tube Diagonal

Icon: Lucide — ISC license (lucide.dev)

Free filet crochet pattern

Test Tube Diagonal

By StitchingLab ·

This 50×50 chart finishes at roughly 13×13 inches in size-10 thread filet mesh, using 2 colors — a clean two-color project — a good first counted chart. Worked in filet, the motif reads through the open mesh — ideal for café curtains and linens. The grid, materials estimate, and written row-by-row instructions below are all free; open the chart in the editor to resize it or swap the palette to yarns you already own.

Stitch type
Filet crochet
Grid
50 × 50
Colors
2

Make it fit your project

This chart is 50×50 stitches — about 13×13″ in size-10 thread filet mesh. Pick a project and the motif rescales onto the right canvas (centered, never stretched), ready to fine-tune in the editor.

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Chart

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Materials

626g total · 2 colors

Project kit

Gear this chart actually calls for

  • Clover Amour Crochet Hook Set

    Comfort-grip hooks in every size a chart can call for — one set covers the whole CYC weight range. — 5.5-6.5 mm (I-9 to K-10½)

    Buy on Amazon →
  • Tapestry Needles

    Blunt-tip needles for weaving in the ends every color change leaves behind.

    Buy on Amazon →
  • Locking Stitch Markers

    Mark pattern repeats, color-section starts, and the first stitch of the round so a miscount never survives a row.

    Buy on Amazon →
  • Sharp Yarn Snips

    Small, sharp snips cut yarn clean at every color change — cleaner joins and easier weaving-in than scissors.

    Buy on Amazon →

Project reality check

intermediate
Strands at once
5
Color changes
154
Ends · intarsia
8
Ends · tapestry
4
  • Up to 5 strands will be active in a single row — wind one bobbin per strand before you start to avoid tangles.

Written instructions

  • spOpen mesh
  • blBlock

Before you start

  • Open mesh (sp) = dc, ch 2, skip 2; block (bl) = 3 dc plus the shared boundary dc — a row of n cells always totals 3n + 1 dc.
  • Foundation: ch 3x(cells) + 3 if Row 1 starts with a block (turning ch-3 counts as first dc), or + 5 if it starts with a space (first dc in 8th ch from hook).
  • Turn with ch 3 (counts as dc) before a block, ch 5 (counts as dc + ch 2) before a space.
  1. 1 RS50 sp
  2. 2 WS50 sp
  3. 3 RS38 sp4 bl8 sp
  4. 4 WS6 sp8 bl36 sp
  5. 5 RS35 sp10 bl5 sp
  6. 6 WS4 sp12 bl34 sp
  7. 7 RS33 sp5 bl4 sp5 bl3 sp
  8. 8 WS3 sp4 bl6 sp5 bl32 sp
  9. 9 RS31 sp5 bl8 sp4 bl2 sp
  10. 10 WS2 sp4 bl9 sp5 bl30 sp
  11. 11 RS29 sp5 bl10 sp4 bl2 sp
  12. 12 WS2 sp4 bl11 sp5 bl28 sp
  13. 13 RS27 sp5 bl11 sp4 bl3 sp
  14. 14 WS3 sp5 bl11 sp5 bl26 sp
  15. 15 RS25 sp5 bl11 sp5 bl4 sp
  16. 16 WS5 sp22 bl23 sp
  17. 17 RS23 sp21 bl6 sp
  18. 18 WS6 sp22 bl22 sp
  19. 19 RS21 sp22 bl7 sp
  20. 20 WS9 sp5 bl11 sp5 bl20 sp
  21. 21 RS19 sp5 bl11 sp5 bl10 sp
  22. 22 WS11 sp5 bl11 sp5 bl18 sp
  23. 23 RS17 sp5 bl11 sp5 bl12 sp
  24. 24 WS13 sp5 bl11 sp5 bl16 sp
Show all 50 rows
  1. 25 RS15 sp5 bl11 sp5 bl14 sp
  2. 26 WS15 sp5 bl11 sp5 bl14 sp
  3. 27 RS13 sp5 bl11 sp5 bl16 sp
  4. 28 WS17 sp5 bl11 sp5 bl12 sp
  5. 29 RS11 sp5 bl11 sp5 bl18 sp
  6. 30 WS19 sp5 bl11 sp5 bl10 sp
  7. 31 RS9 sp5 bl11 sp5 bl20 sp
  8. 32 WS21 sp5 bl11 sp5 bl8 sp
  9. 33 RS3 sp9 bl11 sp5 bl22 sp
  10. 34 WS23 sp5 bl11 sp9 bl2 sp
  11. 35 RS3 sp7 bl11 sp5 bl24 sp
  12. 36 WS25 sp5 bl11 sp5 bl4 sp
  13. 37 RS5 sp5 bl9 sp5 bl26 sp
  14. 38 WS27 sp5 bl7 sp5 bl6 sp
  15. 39 RS7 sp5 bl5 sp5 bl28 sp
  16. 40 WS29 sp5 bl3 sp5 bl8 sp
  17. 41 RS9 sp5 bl1 sp5 bl30 sp
  18. 42 WS31 sp9 bl10 sp
  19. 43 RS11 sp7 bl32 sp
  20. 44 WS32 sp6 bl12 sp
  21. 45 RS13 sp5 bl32 sp
  22. 46 WS32 sp4 bl14 sp
  23. 47 RS15 sp3 bl32 sp
  24. 48 WS33 sp1 bl16 sp
  25. 49 RS50 sp
  26. 50 WS50 sp

Work the pattern · row tracker

Row tracker

1/50

Row 1 of 50 - 2% done

Row 1 (RS) 50 sp

Progress saves on this device and in the link above — bookmark it, or paste it into your Ravelry project notes to pick up exactly where you stopped, on any device.

Pattern code · SLPN v1

A canonical, lossless representation of this pattern. Paste it into any StitchingLab converter to reload, or share it as a single line of text.

SLPN/1/F/50x50/2:6F8AA0,F8F8F8/B:______________________v_______x_______8P_______B_______wP______8B______-AP______BB______g4P_____wfB_____4P4P____8H_B____-D_4P____B_8B____g_-AP___wf_AH___4P_g____8H_wf___-D_4P____B_8H____g_-D____wf_B____4P_g____8H_wf___-D_4P____B_8H____g_-D____wf_B____4P_g____4AAAf___8AAAP____AAAH____gAAB____wf_B____4P_g____-H_wf____D_4P____w_8H____8P-D_____D_B_____4fg_____-Dwf_____wAP_____-AH______wD_______D______________________8A/BN-SV-DB:0,BN-SV-WH:1

content_hash · 088242500704

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