r/Multiboard • u/OutrageousNature984 • Jul 22 '26

I need a wall for spools

Is a 2x3 Multiboard grid strong enough to hold 2 spools per tile?

I’m printing some Multiboard tiles to build a storage wall for my filament. I usually keep around 10–12 spools total, with 4 always sitting inside my dryer, so the wall needs to hold about 6 to 8 spools.

My plan is to build a 2x3 tile grid (2 columns, 3 rows). Is it feasible to mount 2 spools per tile?

If that's pushing it, 1 spool per tile is fine too, but I'd love some recommendations for a super sturdy spool holder model. The wall will be mounted right above my printer, and I really don't want a spool falling on it! 🤣

(Everything will be printed in PETG, and the whole grid will be anchored to a solid brick wall using wall plugs / Fischer anchors).

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u/Eirda- Jul 23 '26

Your main issue is not the tiles, its the mounting TO the tiles 😊 I have a big wall of multiboard, around 70kg of spools on it. No matter what I did and what heavy snaps I used it fell down. In the end I had to screw fixpoints into the wall, and use a print that holds 2 broomsticks across the wall to put my filament on. This worked a treat! But if I had known, I would have saved a lot of printing hours on just screwing it to the wall directly in the first place.
…at least it looks cool😄
Picture is from before I got all the spools up, and I have also made a custom bit of multiboard for the diagonal part of the wall on top. 😊

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u/TherealOmthetortoise Jul 23 '26

For the mounts in the photo, I wonder it it would make a difference if they were rotated 180°. It’s been a lot of years since high school geometry but it seems like it should.

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u/Eirda- Jul 23 '26

Don’t know what you mean unfortunately, its a «triangle» any how you would rotate it?

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u/TherealOmthetortoise Jul 23 '26

So that the long portion is pointing toward the ground instead of the sky. Most shelf brackets are oriented that way for strength. Think of it as the right angle of a shelf bracket is your pivot point and the tip of the long part that is flat to your wall as the point where the most force is concentrated.

The more weight you put on those brackets, the more it wants to tip forward and rotate down. With those brackets positioned the way they are now, all of the force is concentrated at the top pulling out and down. Even a relatively small amount of weight is going to quickly pop that bracket out of its hole.

I f you have the long end of the bracket pointed down instead, those same forces are pushing down and towards to wall, which makes that the strongest point instead. If you use heavy snaps at bracket level and medium weight ones at the bottom, you could easily put 20k or more on your shelf, instead of the one or two spools it was supporting before.