r/DIY • u/AutoModerator • Aug 24 '26

weekly thread General Feedback/Getting Started Q&A [Weekly Thread]

General Feedback/Getting Started Q&A Thread

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u/ploplyguy Aug 25 '26

Working on a very large butcher block floating desk for gaming/crafting. I have a handful 36" x 96" butcher blocks that weigh at least 200 lbs on their own which would then have monitors/peripherals. Basically estimating at least 500-600lb based on napkin math.

I am installing directly into the cement wall of my basement so I am not limited to studs. Would 3-4 of these be enough? I would specifically go for the 28 inch ones which would leave an overhang of 8 inches.

https://www.fastcap.com/product/speedbrace?utm_source=google&utm_medium=organic

I would then follow the instructions and run a cleat along the wall first, but I would really only be able to do the cleat along the backside as this would essentially be freefloating in the room and would not have a cleat on the left/right side.

I have been doing a lot of research on how best to support these and it feels like this should work, but would like another opinion. I like the idea of a floating desk with several of these lined up, but also want to make sure I am building this safely. Instead of floating, would there be a better option?

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u/danbalanescu Aug 31 '26

Those FastCap SpeedBraces are absolute beasts and the perfect choice for a 500-600lb floating setup. Since you are anchoring into a solid concrete basement wall, you have the ultimate structural foundation.

To answer your questions directly:

  1. Yes, 3 to 4 of the 28-inch braces will easily be enough. Space them out evenly (roughly every 24 to 32 inches). The 28-inch brace leaves an 8-inch overhang on a 36-inch deep top, which is safe and prevents the butcher block from tipping or sagging when you lean on the front edge.

  2. The back cleat is highly recommended to prevent the wood from bowing along the wall seam. Since you can't run side cleats, make sure you secure the butcher block directly to the top holes of the SpeedBraces using heavy-duty wood screws so the entire assembly locks together as a rigid unit.

  3. For the concrete wall, do not use standard plastic plugs. Use 5/16" or 3/8" wedge anchors (like Red Heads) or heavy-duty concrete Tapcon screws, embedding them at least 2 to 2.5 inches deep into the solid cement.

By the way, since you are setting up a massive 3" x 96" crafting/gaming station in a basement layout, if you end up doing more structural leveling down there or need to calculate materials for underlayment and flooring boxes to complete the office space around that desk, I built a clean, ad-free suite of tools that maps layouts instantly. No ads or sign-ups tracking your project: https://materialsnap.com

That floating setup is going to look incredible!