Specific weight range:
Average modulus of Elasticity:
380 440 kg/m3
Sitka Spruce is the wood of choice for masts and spars of sailing yachts and the Sitka from South Eastern Alaska is simply the finest in the world ! No other specie matches its strength to weight ratio and it is available from our mill in clear lengths up to 12 metre (40ft)
Sitka Spruce works well with hand or machine tools and has good turning properties. Nails and screws hold without pre-drilling and retain good holding properties. Sitka Spruce is one of the easiest woods to cut, glue, and finish. Sitka Spruce grows along the northern Pacific Coast of North America, from Alaska to Oregon, and is known by many names: Airplane Spruce, Silver Spruce, Oregon and Washington Spruce, Pacific Coast Spruce, Western Spruce and Great Tideland Spruce. Regardless of common name, Sitka Spruce is unique among woods for its unusual combination of specific qualities.
The heartwood of Sitka Spruce is a very light, silvery white that blends gradually into a narrow, cream-coloured sapwood. When planed, its surface takes on a silken shine. It is tough, even grained and soft textured. Sitka Spruce is easily worked with hand or machine tools and has little tendency to split or splinter. It is not difficult to kiln dry as it shrinks or swells very moderately.
Sitka Spruce has a very high strength-to-weight ratio and is extremely resilient, with excellent shock-absorbing qualities. It holds fasteners securely and has the ability to withstand sharp impacts and suddenly applied loads. This combination of attributes makes Sitka Spruce the pre-eminent wood for light aircraft construction and a number of other specialized applications including masts, spars and turbine blades for boats, wind-tunnel propellers, and fine cabinets. It is also highly resonant, making it desirable for the sounding-boards, posts and sounding-board ribs in pianos and for the bodies of stringed instruments. In addition, it is odourless.