We use standard size boxes (called Euro Boxes) with a side door for easy access when the boxes are stacked. This is both practical and weight saving, as you only need one set of heavy duty slides. We like these boxes as it keeps the garage organised with a minimal amount of effort while giving you a good overview due to the transparent sides.

DACH: https://www.obi.de/aufbewahrungsboxen/obi-eurobox-system-tauro-box-flap-side-40-x-30-x-22-cm-transparent/p/2615755

USA: Unfortunately the Euro Box system is not established in the USA. There seems to be a high demand for these boxes, so if you are interested in trading them in bulk and have experience in importing larger quantities, let us know and we will get you the contact details from the manufacturer.