Interesting...Mealworm Racks

[Beneath]

Ive been researching mealworm racks and found these pics:

Ive been trying to find what type of bin that is or somthing like it. Anyone have any suggestions? Ive been looking for the last few days.

If I can't find it, anyone have any suggestions? Looking for large scale. I currently have 50 sterilite 1960's full of mealworms/beetles. Will be needing to expand.

 

[Shadraak]

Wow. I need mealies bad. Growing slowly. Look like thecement bins people use for rat racks. May be wrong though

 

[Beneath]

Wow. I need mealies bad. Growing slowly. Look like thecement bins people use for rat racks. May be wrong though

I guess they do look like them.