^^^
This is no joke. I have about twelve 20 ft-long, rough-cut cedar siding boards overhead in my detached garage that were left over when my dad build his detached garage in the upper lever of the back yard at our lake house in 1970.
They precisely match the cedar siding on the home my Mrs and I bought in 1975...wherein we still reside today. So you can bet your last dime I will be keeping them 'just in case'! The darned things are probably worth a king's ransom today given the fact a 10 ft fir 2x4 currently costs over $10 (USD) a piece here locally!
SMH