Last week, I shaped the tips of nearly half of the columns using a chainsaw.
Today, I continued charring the larch wood fence posts using a propane burner. This is a variation of the traditional Shou Sugi Ban technique (Japanese: 焼杉), in which the wood surface is carbonized to enhance durability, weather resistance, and protection against fungal decay.
I opted for a gas burner instead of an open fire, as it allows for more even and controlled charring. The temperature ranged between approximately 1200°C and 1600°C. Each column took about 10–15 minutes. I kept the flame constantly moving to avoid scorching any single spot and to achieve a consistent, shallow burn across the surface. If the wood starts to crack or the char flakes off easily, it’s gone too far.
I'm quite satisfied with the results.
From my experience, durability is best when the surface of the heartwood is smooth and evenly charred. I’m convinced that charring larch wood without the sapwood results in greater resistance compared to burning the entire piece with the sapwood intact. Carefully brushing the posts with a brass brush afterward removes loose burned particles and smooths the surface. A second round of careful charring after brushing can further deepen the carbon layer.
#woodworking #craftsmanship #wood #shousugiban #fenceproject #handcrafted #farmwork #naturalpreservation