There’s a new blog post on RealMatcher:
The problem is that many lumberyards are selling people meranti (Shorea spp.) as mahogany…and it is not. Merchants will separate 125 different species of Shorea into four different groups according to their color and weight (dark red, light red, white and yellow). Grain direction is usually unpredictable and the white version is high in silica which dulls cutters while the dark red and yellow tend to warp. While dark red is only moderately resistant to rot - light red, white and yellow are not durable in conditions where they are exposed.
Read full blog post: When is Mahogany Not Really Mahogany?