Do these cabinets lock together when stacked?

Stacking method not confirmed in product specs. Test placement before loading to ensure stable configuration, or secure with fasteners if you're running them on a workbench where movement is a concern.

Can I use just one cabinet, or do I have to buy both?

They're sold as a two-piece set — that's what ships. Each cabinet functions on its own, so you can deploy them separately once you have them, but the purchase is for the pair.

What's the return window if these don't fit my space?

Review our return policy on the order confirmation or contact support with your order number — they'll walk you through the process and any restocking terms that apply.