Single crochet border: Blanket Border & Corner Generator

Count the receiving corners separately

This single-crochet border surrounds a receiving rectangle with twelve ordinary stitches on each long side,six on each short side,and four separately identified corner stitches. The design question is whether a stated side length includes the corner bases. Here it does not. The receiving perimeter therefore has forty bases rather than thirty-six. One decorative circuit produces forty-eight single crochets. No physical blanket dimensions or finished fit are inferred from those counts.

Prepare an inspectable perimeter

Use smooth DK cotton and choose a trial hook from the yarn label as a starting point; adjust after checking a sample in this border construction. Have scissors,a tapestry needle,four corner markers,a start marker and a ruler ready. Prepare a receiving sample whose corner bases can be distinguished from its straight-side positions. If the actual fabric has a different edge construction,establish its usable positions first. Do not enter a convenient rectangle size and then assume the real piece has the required forty insertion sources.

Enter the one-round reference

In the generator set long base edge to twelve,short base edge to six,and border rounds to one. Choose US terms and blue #243BCE in both palette entries. The two long sides contribute twenty-four straight bases,and the short sides contribute twelve. Four additional corner bases bring the total to forty. Put markers in those four actual corner stitches rather than in nearby gaps that are not part of the receiving-source plan.

Exact border and source diagram

Download this exact border JSON into the Blanket Border Generator.

1. Work 12 sc on each long edge, 6 sc on each short edge and 3 sc in each corner. Join. Count 48 completed stitches.

Expand only at the marked corners

Work three single crochets into each old corner stitch,and one single crochet into every ordinary side stitch. Beginning chain one does not count. Join to the first actual single crochet after the circuit. Each corner consumes one old base and produces three stitches,adding two. Across four corners,the expansion is eight. The thirty-six ordinary sources still produce exactly thirty-six stitches,and the four corner sources produce twelve.

Check all three perimeter quantities

The receiving total is forty,the new corner-group total is twelve,and the finished circuit total is forty-eight. These figures describe different sets. Do not interpret three stitches at a corner as three separate old corner bases. Mark the middle single crochet of each group if another border round will be planned later. The other two stitches belong to the neighboring side allocations;they should not each become a new corner increase on the next circuit.

Inspect the receiving-edge transition

If a side appears short,check whether its corner was counted among the twelve or six straight positions. If a corner bulges,look for an extra increase in a neighboring stitch before changing the hook. A correct total can conceal a missed ordinary base balanced by an unintended increase elsewhere,so inspect each side and corner separately. Fasten off and weave the ends without pulling the joining point tighter than the surrounding perimeter.

Questions before applying the border

Does this establish a forty-eight-centimeter edge? The count is in stitches,not centimeters. Can the three corner stitches be placed around an uncounted hole instead? That requires a different receiving-source specification. Care for a physical trial and compare relaxed fit before adding the border to a finished item. Consult the gauge guide when measuring. This record verifies corner-source consumption and output counts,not physical flatness,edge strength or a crocheted sample.