Shell corners: Blanket Border & Corner Generator

Separate shell valleys from corner turns

This eighteen-by-twelve receiving-edge study gives every straight side a whole number of six-base shells. The long sides carry three fans each, and the short sides carry two. Four additional corner bases receive their own single-crochet and chain-space turns. Its goal is a decorative frame with explicit transitions between a shell valley and the next corner, rather than a plain single-crochet border renamed as a shell pattern.

Prepare sixty-four usable bases

Count eighteen ordinary positions along each long edge and twelve along each short edge. Mark four corner sources separately. The ordinary sides contribute sixty bases and the corners four more. Use smooth compatible yarn, a trial hook, four corner markers and a distinct start marker. If the receiving fabric has row ends instead of stitch tops, make a measured pickup trial before assigning these counts. The generator works from available insertion positions and does not measure an unknown blanket edge.

Understand why one round is enough here

Choose the one-round shell-frame construction. Each straight repeat skips two bases, works five double crochets into the third, skips two and slip stitches into the sixth. The next round could not simply repeat that rule over the uneven mix of fan tops, slip stitches and corner spaces without a new source specification. This implementation therefore rejects additional rounds for the selected shell finish. A different multi-round scallop needs its own counted design.

Work a corner before the first shell

Attach at a marked corner, chain one without counting it, and work single crochet, chain two and single crochet into that corner base. Work three shell repeats across the long side, then the next corner and two repeats across the short side. Repeat those instructions for the remaining sides. Keep the final slip stitch of each side in its own sixth ordinary base. It must not occupy the next corner source. After the fourth side, join to the first actual corner single crochet.

Verify the completed circuit

Ten fans produce fifty double crochets. Ten closing slips and eight corner single crochets bring the main count to sixty-eight. The eight corner chains are separate, as is the ordinary joining slip stitch. Fasten off, weave tails and inspect all four corner spaces. Count three fans on both long sides and two on both short sides before assessing physical fit. The source arithmetic verifies placement, while the actual yarn and receiving fabric determine whether the edge lies comfortably.

Questions and repair choices

Why is my last fan incomplete?

Check the straight-side bases between marked corners. A corner counted as part of eighteen or twelve often steals a needed repeat position.

Can I replace the two corner single crochets with a shell?

That would change the corner structure and total. Record a separate trial rather than treating the saved sixty-eight-stitch circuit as unchanged.

Does the shell count tell me finished width?

No. Measure the finished trial in the selected yarn. Five posts sharing one base have a different physical spread from five posts on separate bases.

Exact generator inputs and full instructions

Use the shell construction, long sides 18 ordinary bases, short sides 12 ordinary bases and 1 border round. Palette: #306C69, #306C69. The resulting main counts are 68. In UK terminology US sc becomes dc, hdc becomes htr, dc becomes tr, tr becomes dtr and front/back-post dc becomes front/back-post tr. Ordinary joins and height chains stay outside the main counts.

Download this exact original border project and restore it in the Blanket Border and Corner Generator. Compare the insertion map with the full working steps below. Read the stitch-chart guide if source lines and shared-base symbols are unfamiliar.

1. Prepare a rectangular receiving edge with 18 straight bases on each long side,12 on each short side,and four additional marked corner bases. Begin at a corner:ch1 (not counted),[sc,ch2,sc] in that corner base. Along the following long side repeat [skip2,5dc in next base,skip2,sl st in next] 3 times. Work [sc,ch2,sc] in next corner;repeat shells 2 times along the short side. Repeat those long/short instructions for the remaining two corners and sides. Join to first corner sc without counting the join. 50 dc,10 sl and8corner sc;8corner chains separately. Fasten off and weave in. Main count: 68.