Gridfinity Sewing Thread Tray

Gridfinity Sewing Thread Spool Tray — 6×3 Base, American Size Spools A Gridfinity thread spool tray sized for American spools - 15 spools, stackable, and designed from scratch to fit your spools.My sister liked the 30 x 40 Thread Spool Gridfinity Tray by @user_2287153542. That design is nicely executed for European-standard spools (30 mm x 40 mm), but standard American sewing thread runs larger: 35 mm in diameter and 45 mm tall. I built this spool tray from scratch in Fusion to accommodate those dimensions. Design DetailsThe tray is a 6×3 Gridfinity base, 6u tall, holding 15 spools in a 5×3 arrangement. Each slot is sized to cradle a standard U.S. sewing thread spool (35 mm diameter, 45 mm height), keeping colors clearly visible. The slot geometry keeps spools secure without requiring a lid.The trays stack - stack multiple trays, or combine with other Gridfinity storage on the same base grid. The two-color version adds a dark contrasting rim that gives the tray a polished, professional