UNS 150U stand (tank 150 x 60 x 60 footprint). The stand is black so a little difficult to photograph. You may be disappointed. No cross bracing under the tank itself. They even skipped most of the paint on the underside
Outside Front (3 door):
Doors Open. Two vertical pieces between doors principally as door stops.
Note there is no wall between door sections. The interior is completely open from left to right. The 'door stops' are oriented front to back to provide some front bracing support, though.
There is a small open rectangle (maybe about 6"x8") in the back panel toward the floor on the right hand side (I am using it for ATO cords and tubing). There is a much larger rectangular opening on the back panel on the left side about 2/3's of cabinet height. There is no additional vertical bracing on the back panel. It is flat (sorry, the filter and UPS are bit in the way). That opening is about the height of the Biomaster 600 on the left.
This is the underside of the cabinet. Possibly MDF top? Stand seems too light overall to be all MDF, though. MDF is pretty heavy. Maybe a mix of ply and MDF, not sure. I don't see any obvious grain, but it's difficult with the black laquer version to tell. NO interior under-tank horizontal bracing, other than the front brace above the doors, and minimal interior underside paint apparently

Wish I had noticed that before, I would have fixed that before I installed it. I will say I was quite surprised when it arrived at just how light this cabinet is for an approximately 400lb 15mm thick glass tank! So far it's holding up, but it's not how I would have built a stand if I did it myself. Sleek, though, but you could probably mod an Ikea cabinet with interior stud bracing and have something just as sleek looking. I will say I do appreciate not having vertical walls to drill holes through between each door section. Hooking up hoses and tubing is beautifully easy. Lots of elbow room! Functionally I do like it, but it's a pretty basic box for the price.
