Generate Gridfinity-Compatible Storage Bins
Free parametric generator for Gridfinity-compatible bins and baseplates — the modular 42 × 42 mm storage system designed by Zack Freedman (CC BY 4.0). Configure grid size, bin height in 7 mm units, magnet holes, screw holes, stacking lip and label ledge, then export ready-to-print STL. Handles 1×1 up to 10×10 grids for both single bins and baseplates.
How to generate Gridfinity bins
Bins hold things; baseplates are the grid they snap into. Most workshops print one large baseplate per drawer and multiple bins.
Measure your drawer to the nearest 42 mm — a 420 × 420 mm drawer fits a 10×10 baseplate.
Heights are in 7 mm units (the thickness of the baseplate foot). A U3 bin = 21 mm tall, U6 = 42 mm, U12 = 84 mm.
Adds 6 mm diameter × 2 mm deep holes on the bottom — glue in 6×2 mm neodymium magnets for extra hold on a steel tool tray.
Download STL, slice at 0.2 mm layer height and print with PLA or PETG. Most bins print in 1–4 hours depending on size.
Build modular workshop storage that snaps to the Gridfinity grid — bins and baseplates, any size, any height.
Grid
Options
Gridfinity is a CC BY 4.0 modular storage system designed by Zack Freedman. This generator outputs Gridfinity-compatible geometry and credits the original design.
