Aquarium stand build question
I'm building an aquarium stand frame out of 2x4 poplar (1 3/4x3 1/2) and using Baltic birch 18mm plywood to skin it and for the bottom. The top will likely be 1 1/4" hard maple.
With regards to the floor of the stand (where the equipment sits), it seems most people notch the plywood to fit around the inner upright supports. Wouldn't it be easier to just screw the plywood onto the base frame (i.e. no notches) and then screw the outer frame uprights into the plywood? This is how they do it with subfloors in homes and they use OSB for that, so I'd imagine a piece of 18mm x 13-ply Baltic birch should be able to handle the weight.
The only real difference I can see is that you wouldn't use the 4 inner uprights that connect the tops. Most designs seem to use those for lateral support to prevent rocking but wouldn't the 18mm plywood skin (glued, screwed from the inside, and nailed with 15ga brads) be sufficient?
This stand is for an ADA 90-P, which I believe will weigh under 500 lbs with water and Yamaya stones.
Is there anything I'm missing or should consider?