I'm working on building a treehouse using the tribeam/yoke method, and I've got some 6x6 lumber on hand. I know that typically, a 6x8 is more suitable for the span, but I'm wondering if I can effectively use the 6x6 instead. I've seen beams made from stacked 2x material with bolts, but in my case, if I place a 2x6 on top of the 6x6 horizontally, will that help improve the load capacity, like creating a makeshift 6x8?
2 Answers
Absolutely, stackable construction methods can definitely work here! Check out some resources about sandwich construction—it's commonly used in boat building and similar projects. Just be sure to get the right setup for the stress you'll be seeing.
Haha, directions unclear, but I did get my hand stuck in a sandwich! But seriously, thanks for the tip!
So if your 6x6 is horizontal and facing the load, I think putting a 2x6 on top isn't the best idea in terms of strength. You might want to sister the 2x6 so that its 6" height supports the vertical weight better—this way you'll get more out of your setup! Here's a visual that illustrates it:
```
┌───────┬
│ │
│ │
└───────┘
```
That makes sense! I'm trying to maximize the support for the load; appreciate you clarifying that!
Got it! I was used to seeing that approach flipped the other way. Appreciate it!