Other than the size of the beam, we also have a wide range of selection of wood species and commercial grade. We want to choose the size of lumber that can support the beam load we need to apply to it and can handle the effects of humidity and moisture, extreme temperature, bending, and shearing (to name a few).
When choosing what size of lumber to use as a beam, we must consider various factors so we won't have a wood beam that can pose a danger to us.
