Indeed, I have plans to make a new cabinet/workbench and I shudder to think of what the materials would cost. I have the 100# full extension drawer slides but plywood has gone through the roof.I found some units at... guess where... Ikea again. But they have improved over my vintage. Legitimate steel bearing slides with stops, beefier box & retention hardware. They had a system with identical box dimensions but one had a filing cabinet bottom drawer which I actually preferred over a bank of drawers only because I could put tall stuff in there. But with all the pandemic rigmarole they were perpetually out of stock. This went on for better part of a year & I just gave up. Then about a month ago I checked again. Lots of drawer units but discontinued or redesign of the deep drawer unit. I figured I wanted this over & with so just bit the bullet. To make me feel a bit better I couldn't even buy the materials at Home Depot never mind the work.