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Basket Weaving Reed Calculator

Plan the reed for a round woven basket: how many rows of weavers fit the wall, how much weft the flare takes, what to cut for the stakes and the rim.

millimetres across the round base, 40 to 800
millimetres from the base to the rim, 20 to 800
millimetres across the top; larger than the base flares the wall
millimetres across the weaver; #3 round reed is about 3 mm
even number around the base, 6 to 64; match your base's slots
percent added for going over and under the stakes
Enter the basket size and reed width to see the reed plan.

Rows of weavers climb the wall one reed width at a time, so rows are the wall height divided by the reed width, rounded to the nearest whole row. Each row is taken at its own diameter, interpolated between the base and the rim, and its weft length is the circumference of that diameter plus the weave slack. Stake length is the slanted wall length plus four reed widths past the rim for the border. The rim figure covers a three-rod wale: three weavers, each once around the rim, with the same slack. Round reed is sold by diameter, so a #3 reed fills a 3 mm row. This is a purchasing estimate: cut long rather than short, and remember that soaked reed, sharp tapers and a different border all change the total. Everything runs in your browser with no storage, uploads or network access.