75G Stand build

[TaiVo]

I’m planning on building a stand for my 75 gallon tank as the picture attached. Would it be ok and safe enough to use 1x3 board instead of 2x4 to withstand the weight? I’m trying to create more space in the sump and less bulky of the stand. Thanks!

 

[gbroadbridge]

You are planning on adding cross bracing?

 

[rwb500]

The pictured stand is very dangerous without cross bracing such as a glued-on plywood skin. The issue with 1x3's is less so the strength and more so the difficulty in making rigid joints. But if you can get everything perfectly square and glue on a near-complete plywood skin, 1x3's can work. Its just easier to make with 2x4's, thats why they are more commonly used.

 

[z0mbeh]

The pictured stand is very dangerous without cross bracing such as a glued-on plywood skin. The issue with 1x3's is less so the strength and more so the difficulty in making rigid joints. But if you can get everything perfectly square and glue on a near-complete plywood skin, 1x3's can work. Its just easier to make with 2x4's, thats why they are more commonly used.

This exactly, if you try and twist or push that stand I am sure you will find some flex in it. Now factor in a minimum of 825lbs of a filed 75gal tank on the top.

 

[Rhino]

I used 2x6 for the frame on mine when I did it. Overkill, most likely. However I found I ample room underneath using the RocketEngineer method. It was heavy, but peace of mind for me was worth it.

 

[TaiVo]

The pictured stand is very dangerous without cross bracing such as a glued-on plywood skin. The issue with 1x3's is less so the strength and more so the difficulty in making rigid joints. But if you can get everything perfectly square and glue on a near-complete plywood skin, 1x3's can work. Its just easier to make with 2x4's, thats why they are more commonly used.

I do planning on covering the whole stand with 3/4 plywood.

 

[Jekyl]

I would check some YouTube videos on stand building. As is and even with some plywood the bracing is suspect. Here's some pics of the one I built for my 90g

 

[Jekyl]

You need to at least add cross bracing and 2x4s at the corners that go from the floor to the top.

 

[Jekyl]

Here's another pic I found while I was building.