Standard 4U Gridfinity-Compatible Bins

Compact, open-top storage for small parts, hardware, electronics, LEGO elements, craft supplies, and more.

Available in 16 footprints. 10 colors. More options on the way.

Compact Storage. Maximum Flexibility.

Sort Dock Standard 4U bins are the shallowest bins in the lineup, making them ideal for smaller components and high-density organization.

Every bin is designed around the Gridfinity-compatible system, allowing you to mix footprints and build layouts around the way you work, collect, build, or create.

A top view of six empty rectangular plastic containers in red, gray, purple, black, orange, and white, arranged on a white surface.

Why Choose 4U?

Best for smaller parts and shallow storage.

4U bins keep small items easy to see and access while allowing more vertical storage density. They're a strong choice for fasteners, electronic components, LEGO pieces, beads, craft supplies, and other small items that don't need a deeper bin.

Need more capacity?

Choose your footprint