Im looking at making a stand for my 50L fish tank for my daughter. Wanting to make sure it can support up to 100kg just for safety. Not even sure where to start honestly. the tank is 58.5 x 32 x 38.5 cm (LxDxH)
Welcome to the Bunnings Workshop community. Thank you for joining us and sharing your question about how to make a stand for a 50-liter fish tank.
Building a stand for your fish tank is a fantastic D.I.Y. project. My apologies I did not see that you had posted the measurements already. I suggest as an option using a Pinnacle 1500 x 810 x 310mm 4 Shelf Unit. It can be assembled to a shorter height, and each shelf is rated to carry 160kg evenly spread. Let me make some basic plans and get back to you.
Let me tag our experienced members @JoeAzza and @TedBear for their recommendations.