Any timber that is to be used in construction must be graded in terms of its strength and stiffness. Timber grading is a process through which timbers with similar structural properties are sorted into different groupings. Though there are, naturally, significant overlaps in properties in the groups, there are still noticeable and verified differences which can make some types more suitable for certain tasks than others.
When timber is to be used within the construction industry, it must be suitable for the project’s end use. The two main types of timber that tend to be used in construction work are kiln dried timber and unseasoned timber,