Sal woods are durable, termite- and fungi-resistant. This wood products should not be kept in the glare of direct sunlight as it will form cracks. Why sal wood is ideal for furniture: Sal wood is highly durable and very strong, for which reason it is ideal for making window sills, door, frames and beams. Its sapwood is white in color, not as durable as the wood but thick. Its wood pores are full of resin. Uses: The sal tree is used for a variety of purposes, such as: Medicinal uses: Sal resin is used as an astringent to relieve diarrhoea and dysentery.