Thankfully, lumber has developed not-imprecise grading methods that are tied into guaranteed load values that are tied into architectural plans (which themselve

Thankfully, lumber has developed not-imprecise grading methods that are tied into guaranteed load values that are tied into architectural plans (which themselves include safety margins). Basics: https://www.southernpine.com/grading-methods/ https://www.southernpine.com/grading-methods/ and https://bof.fire.ca.gov/media/llad34j2/full-14-b-presentation-structural-lumber-grading-basics-july-2021.pdf https://bof.fire.ca.gov/media/llad34j2/full-14-b-presentatio... Examples: https://www.nelma.org/the-grade-rule-book/ https://www.nelma.org/the-grade-rule-book/ and https://nlga.org/wp-content/uploads/2023/01/NLGA-GR-2022-version-__Website-Pages-1-238.pdf https://nlga.org/wp-content/uploads/2023/01/NLGA-GR-2022-ver...