Metal 90 gallon stand

[Giblin7]

I am building a 90 gallon stand out of tube steal. I need to know what size of tubing I need. The stand is going to measure 48"x18"36".

 

[alco1]

ive welded up a frame for my 265g tank, I went with 50mm square galvanised steel which was divided by 300mm spaces all the was across.... never had a problem but I think it may be an overkill.

friend of mine is building a 400g tank and used 100mm tube with just 2 beams across and the engineer believes that will be fine.

you might be able to work out what you need from my experiences.... hopefully...... but probably not lol