Hey everyone! I'm in the process of building a detached 8'x8' roof to shelter some bicycles. Initially, I planned on using pressure treated 4x4 posts from Home Depot, but I recently discovered the Japanese technique of charring wood, known as Yakisugi, to protect it from pests and moisture. Now I'm considering using regular pine 4x4 posts that I've charred myself. Does anyone have experience or tips for properly charring wood for better protection against insects like termites and moisture? Also, since I'll be anchoring the posts using an 8-inch diameter Quikrete concrete form with a PB44Z Simpson metal post base, do I really need pressure treated wood if the posts won't be in the ground?
2 Answers
Ultimately, it comes down to what works for you and what you like aesthetically. If the posts are above ground and kept dry, even untreated wood like cedar or Douglas fir can last for decades. So if you're leaning towards a more natural look without all the hassle of pressure treating, you could be fine with standard wood.
Charring wood really isn't effective for long-term protection. There are studies that show it doesn't really help against pests like termites. In fact, charring might even reduce the life of your posts instead of preserving them, especially in the critical areas where they sit below ground. If you’re looking for durability, consider using osage orange or black locust, which have proven to last a long time. If you stick with pressure treated wood, you'll be in a better spot for longevity—just my two cents!
I found a study that indicates charring followed by an oil treatment might help a little with pest resistance. It could be worth a shot if you want to give Yakisugi a second thought! Here's the link if you're interested: [link]. But definitely check your local conditions—what works in one area might not in another!
Appreciate the advice! I’m really curious about how it will look, too. Thanks for your input!