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Windowpane Check Corner

A solid corner triangle with a grid of small open squares set into the ground along its two straight edges, tapering to a stepped diagonal. Intended as the corner of a handkerchief or collar border; the mostly filled ground uses more thread than its size suggests, and the diagonal edge decreases one mesh per row, so check the chart at each turn.

Filet crochet chart: solid right-triangle corner motif with a windowpane grid of small open squares and a stepped diagonal edge.

VINTAGE · 1914 CORNERS & INSERTIONS

Chart size18 × 18 meshes
Worked rows18
Stitches usedch, dc — that's all
DifficultyIntermediate
Written rowsevery row, with per-row shaping
SourcePriscilla Filet Book No. 2, 1914

Download chart (SVG) Start crocheting

Restored, not scanned. Shaped chart — the row edges step in and out. Every row that changes width carries a [Shaping: …] note saying how many meshes wider or narrower it is at its start and end, read straight off the chart. Finished size depends on your thread and tension — swatch first.

Left-handed? These rows are written for right-handed working (odd rows read right to left). Reverse the reading direction of every row, or use the chart maker, which writes the pattern left-handed for you.

Written instructions

How to count. The turning chain at the start of a row stands in for the first stitch of that row's first mesh, and that mesh is already included in the counts below — work only what the counts say, not one mesh more.
Row 1: 2 open meshes (2 meshes in total). Turn.
Row 2: ch 5, 3 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 3: ch 5, 4 open meshes. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 4: ch 5, 1 open mesh, 1 filled mesh, 2 open meshes. Turn.
Row 5: ch 5, 2 open meshes, 2 filled meshes, 1 open mesh. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 6: ch 5, 1 open mesh, 3 filled meshes, 3 open meshes. Turn. [Shaping: ends 2 meshes wider than the row before.]
…
Show all 18 rows
Row 1: 2 open meshes (2 meshes in total). Turn.
Row 2: ch 5, 3 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 3: ch 5, 4 open meshes. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 4: ch 5, 1 open mesh, 1 filled mesh, 2 open meshes. Turn.
Row 5: ch 5, 2 open meshes, 2 filled meshes, 1 open mesh. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 6: ch 5, 1 open mesh, 3 filled meshes, 3 open meshes. Turn. [Shaping: ends 2 meshes wider than the row before.]
Row 7: ch 5, 2 open meshes, 4 filled meshes, 1 open mesh. Turn.
Row 8: ch 5, 1 open mesh, 2 filled meshes, 1 open mesh, 2 filled meshes, 2 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 9: ch 5, 2 open meshes, 2 filled meshes, 2 open meshes, 2 filled meshes, 1 open mesh. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 10: ch 5, 1 open mesh, 7 filled meshes, 2 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 11: ch 5, 3 open meshes, 1 filled mesh, 2 open meshes, 1 filled mesh, 2 open meshes, 2 filled meshes, 1 open mesh. Turn. [Shaping: starts 2 meshes wider than the row before.]
Row 12: ch 5, 1 open mesh, 2 filled meshes, 2 open meshes, 1 filled mesh, 2 open meshes, 2 filled meshes, 3 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 13: ch 5, 3 open meshes, 5 filled meshes, 1 open mesh, 4 filled meshes, 1 open mesh. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 14: ch 5, 1 open mesh, 2 filled meshes, 2 open meshes, 1 filled mesh, 2 open meshes, 1 filled mesh, 1 open mesh, 2 filled meshes, 3 open meshes. Turn. [Shaping: ends 1 mesh wider than the row before.]
Row 15: ch 5, 3 open meshes, 2 filled meshes, 2 open meshes, 1 filled mesh, 2 open meshes, 1 filled mesh, 2 open meshes, 2 filled meshes, 1 open mesh. Turn. [Shaping: starts 1 mesh wider than the row before.]
Row 16: ch 5, 1 open mesh, 13 filled meshes, 2 open meshes. Turn.
Row 17: ch 5, 3 open meshes, 14 filled meshes, 1 open mesh. Turn. [Shaping: starts 2 meshes wider than the row before.]
Row 18: ch 5, 18 open meshes. Fasten off.

Stitch along

Tick rows off as you go — progress is saved on this device only.

More from the 1914 collection

Rose Spray Triangle Insert34 × 44 meshes · Advanced Nested Triangle Corner18 × 18 meshes · Intermediate Openwork Sprig Point15 × 28 meshes · Intermediate

About these patterns. Crochetpatternmaker.com is an independent site. The vintage charts in our library are restored from The Priscilla Filet Crochet Book, No. 2 (Priscilla Publishing Company, Boston, 1914), a work in the public domain; we re-charted each design from the original plates and cross-checked it against the printed mesh counts. We are not affiliated with any past or present publisher. The chart maker runs entirely in your browser — images you upload never leave your device. Finished sizes are estimates: filet gauge depends on your thread, hook and tension, so work a small swatch first.