Builders FirstSource's elevated scale and a very comfortable balance sheet position enables it to anticipate an annual run-rate synergy of $130-$150 million by the end 2023. Also, the company is on its course to realize $60-$70 million of its targeted cost synergy by the end of 2021. The company continued its cost leverage on higher sales and robust expense controls offset higher variable costs. Builders FirstSource is focused on cost-saving initiatives and implementing various plans for the same.