Norway spruce (Picea abies) is a light, pale softwood that’s valued for consistency, easy machining and an excellent stiffness-to-weight ratio. In UK timber yards it’s one of the main species behind the “whitewood / European spruce” category.
For general building work it’s a staple: straight-grained stock planes and fixes easily, and it’s widely available in predictable grades for studs, joists, battens and packaging. Carefully selected, slow-grown material is also the famous “resonance wood” used for instrument soundboards.
Natural durability is only modest, so exterior use needs protection, treatment or smart detailing. In other words: spruce is a superb structural and utility softwood indoors, and an outdoor softwood only when the system around it is doing the heavy lifting.