Spruce, larch, pine, fir: System D helps you recognize the peculiarities of softwoods to use them best in your DIY projects.
Its heartwood is not distinct from the sapwood. The wood is a very pale yellowish white with an orange veining. His thread is very straight and the grain fine and regular. The knots are quite hard and sometimes not very adherent. All types of glue are suitable.
It has a yellowish-white sapwood and a heartwood that goes from pink to reddish-brown. Nodes are quite hard, sometimes not very adherent. For bonding, an alkaline, solvent or resorcinol adhesive is preferably used (on freshly planed or sanded surfaces).
Its heartwood is reddish brown more or less pronounced. Its sapwood is pale and is distinguished from the perfect wood. It is a straight grain wood with a medium to coarse grain. Its bonding can be easily achieved with all types of glue.
Its sapwood is very broad, yellow-white in color, and its reddish to light brown heartwood, veined and striated with large resinous canals. The thread is straight and the irregular grain is coarse. Nodes are quite hard, sometimes not very adherent. Its bonding is easy, except in case of significant resin content (then use an alkaline or resorcinol adhesive).
It has a broad sapwood of yellowish white hue and a heartwood ranging from pink to reddish brown. His thread is usually straight and his grain rather coarse. The hard knots are sometimes not very adherent. All types of glue are suitable for gluing (if the wood is very resinous, use an alkaline or resorcinol glue).