Douglas Fir – The Undervalued exceptional wood flooring option

Posted: September 23, 2019

Douglas fir is an exceptional and undervalued wood flooring species. Much maligned for its low score on the Janka hardness test, Douglas fir makes up for this with many other positive qualities. An excellent option for reclaimed wood flooring, Douglas fir hardwood flooring will add style and resale value to your home.

Angiosperm vs. Gymnosperm Trees

One of the big misunderstandings about wood floors is the difference between “hardwoods” and “softwoods.” While hardwoods in the aggregate tend to have higher Janka hardness scores than softwoods, that doesn’t mean that every hardwood is harder than every softwood. In fact, hardwood and softwood are only nicknames for a more scientific separation of species. Hardwoods are actually angiosperms, which means “enclosed seed.” Angiosperm trees have mature seeds that grow in a fruit or a nut, like oak and cherry. Gymnosperm trees have naked seeds that are carried in things like pine cones. Species such as pines, firs, and cedars are gymnosperms. While it might be called a softwood, Douglas fir is actually harder than some angiosperm hardwoods, such as chestnut.

Durability of Douglas Fir Hardwood Flooring

Douglas fir is a very durable hardwood flooring option. We need only look to the early twentieth century houses of the Pacific Northwest, many of which have Douglas fir floors that have retained their quality for nearly 100 years, in order to see this. The reason that Douglas fir is sometimes mistaken as a less durable flooring material is because it has a relatively low Janka score. The Janka hardness test is the measurement by which a hardwood species’ “hardness” is determined. The score is based on how much force it takes to embed a .444-inch steel ball halfway into a plank of wood. Montana Douglas fir has a Janka score of 770, meaning it takes 770 pounds of force to do this. Clearly, unless you’re shooting at your floor regularly, this is an adequate level of hardness. Durable Douglas Fir hardwood flooring makes up for its comparatively low Janka rating in other ways though. It has an excellent modulus of elasticity, meaning it can bend and return to its original shape, unlike many brittle hardwoods, as well as good ratings for tension parallel-to-grain, shear, and compression.

Adding a texture to your Douglas Fir flooring is also an excellent way to combat the inevitable dent, ding, or scratch. Texturing such as wire brushing, circular sawn kerfs, or hand scraping adds a beautiful natural rustic look and feel. All wood floors are susceptible to daily wear and tear, adding texture simply camouflages the inevitable and extends the lifetime between re-finishing.

Maintaining Douglas Fir Hardwood Floors

As with any hardwood flooring species, Douglas fir is prone to scratches and scrapes. This is especially true because it is a slightly softer species of wood. One of the most common ways that hardwood floors get scratched is when grit, grime, dust, and dirt build up and act as an abrasive force against the surface of the floor, like sandpaper. To prevent this from happening only minimal regular cleaning is required. Sweeping regularly and occasionally vacuuming should prevent this problem, and a periodic damp mopping wouldn’t hurt. Be mindful of things like pet claws and stiletto heels, which have a habit of causing dents and dings, and never drag furniture across your Douglas fir floors, always lift it.

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