RocketEng,
This is a post from before the split of the thread, no matter how much i measured and tried to cut the legs all the same length i have some gaps like in the picture below, i am trying to fill them with wood glue or epoxy as i glued all of my joints together before i screwed them together so disassembly is not an option. The stand is per your OP it is 72x24x40 , will the weight of the tank once full of water "settle out the gaps" or will it cause stress points when it does? I will try to post some pictures of my gaps later, however they are just like in the picture below some are flush and some are an 1/8" - 1/16" gap, your thoughts...???
I noticed the following picture and was curious because my stand also has these little inconsistincies. if you look at the corner that is closest to you in this picture there is a space showing between the top horizontal support and that corners 2x4 vertical supports. I assume since they are screwed to the strips that they cant settle out once the tank is on there with some water. I guess i wonder how much deflection like this is okay. I planned on firming everything up, sanding to make it level and then putting on the top frame and put the tank on half full let it sit, and then take it off and THEN I was going to sand and if nessacary plane it level. This sound okay?
Maybe i'll have to shim it... I just see a space like that and I think thats not really sitting on those 2x4's... thats sitting on those screws.