There are several major barriers in maintaining the load-bearing function of timber products in a further service life beyond extending the life of the building. The main barriers include missing standards and regulations for re-grading, re-classifying and re-certifying salvaged timber for load-bearing structural purposes. Current grading standards, which are formulated for new timber, are limited in this way due to several reasons. The same applies to current product and design standards which are also explicitly formulated only for new timber and new timber products. As a result, there are legal and insurance issues which currently act as barriers for circulating structural timber and timber construction products. This chapter presents a short summary of these issues.