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Using timber as a structural material for commercial projects will certainly gain importance and popularity in the coming decades as more focus is placed on reducing environmental effects created by a dependence on steel and concrete in the construction industry. Timber is a clean alternative that despite its historical use is too often overlooked by designers when they are choosing materials for ordinary commercial projects like office buildings. This thesis presents a case for using timber as the primary structural material in a medium-rise office building (up to ten stories), where currently only concrete and steel are normally used. The study accomplishes this using a custom structural design for a typical offic