My DIY 75G (or 90G) Stand, Plans And Pics Included

Colin_BC

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I recently picked up a new 75 gallon aquarium, so it was time to build a new heavy duty stand. This is based off plans for a 55g stand I made 19 years ago (Click here to see the original stand and plans), but with a few revisions on the fly.

One mistake I made on the original plans I drew up 19 years ago was o made the assumption that dimensional lumber such as 2x6’s were actually 2 inches x 6 inches, but in reality they’re 1.5 inches x 5.5 inches. I corrected that on the new plans. As well, the original plans were left with an open face on the bottom to allow for more tanks. On the new stand, I plan for cupboards on the bottom, so when I put my reinforcing 2x4’s at each cross section, I this time rotated the 2x4s so they reinforced the joints on the upper frame.

For the bottom panels, I screwed in a couple pieces per each of the 3 sections a half inch from the top so I could then drop a piece of 1/2 plywood into each section for a flush shelf. I deliberately made these easy to remove for the purpose of checking for leaking water without having to move the whole stand.

I measured and cut some 1/2” plywood panels to seal up the back and sides. For the front and the upcoming cupboard doors, I’m using 1/2” MDF for a smoother look. It was originally just going to be the cupboard doors that were MDF, but I ended up getting a deal on a bigger sheet and had enough leftover to make the front face frame.

I gave all the paintable surfaces a good sanding to smooth it out, then put 2 coats of primer on (1 day apart with a light sanding with 220 grit after each coat had dried). I’ve now been puttting light coats of a black high-gloss acrylic/latex/water base paint. Again, a very light sanding between coats, but now with 320 grit. I’ll probably do a couple more very light coats of paint on everything but the top of the stand, and then apply some sort of clear coat.

It still has a bit of work left, such as installing cupboard doors, plus a couple more light coats of paint. I have to wait at least a couple more days for the paint on the top to cure before I put the new 75 gallon on it, so that should give me time to finish up the doors and some basic trim work.

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Like the build, but, noted that your plans don't seem to match the final product. The drawings seem to be missing some of the internal "studs", but the final build looks quite strong. I find the DIY stands quite interesting.
 
You are over built. That stand will hold three tanks stacked on top of each other and still handle more weight I have built a number of wood stands. As you can see 2x4s on edge were more than enought tpo support the tanks
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Bot tanks were filled with water, substrate, lots of wood and rocks. They have glass lids and lights on on top. Because I used pressure treated lumber I used 2x4s between the front and back more to keep it all squared rather than for any support. The were used as to keep things straight. The end verticals are also 2x4s. As you can see I only used three 2x6s for vertical support along the front and back. I had both tanks filled for years.

The 125 was emptied when I sold all the plecos it held. A couple of months back the 150 developed a slow leak from the bottom. I moved the contents into the empty 125 and send the 159 and its stand to the dump. Here is a pic of the 150 filled etc.
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I build both stands in the room where they are. But I cut the lumber outdoors using a rented compound miter saw. I have no plywood on top, the tank rim is all that is supported anyway, so there is no needed to make a full flat surface under the tank unless it is rimless.

Your stand is nice looking even if it is over built. Just more work and expense than you really needed.
 
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Overbuilt is my goal when building stands. The original stand that drew these plans up for is still in use and perfectly stable over 19 years later 😋

As for the plans, yes, they are missing the vertical supports I added in as an afterthought. I originally drew those plans up in Microsoft Paint over 19 years ago. I’ll try to add the pics of my additional hand written notes later if I can find them. I had written out most of the cuts/total pieces needed and their respective sizes. 🍻
 

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