Bruce
Herd Master
Then you need 6/4 boards (finished would be 1 1/4"), not sure Lowes would have that. Look for a lumber mill. They will sell by the board foot 144 cu in - measured as area of a true 1" thick board. A board foot would be 12"x12"x1" ... or 24"x6"x1" ... etc. Given this is DS's house and he is going to sell it, it might be most prudent to have the mill make the boards exactly the length and width you need for the trim pieces. He can add it to the cost basis of the house and that will lower the gains. Since he doesn't live there he will be paying capital gains on the "profit".
Yes, 5/4 finished is 1" thick, a finished 2x4 is 1.5" thick x 3 1/2" wide, a finished 1x4 is 3/4" x 3 1/2"5/4 boards are smaller than 2x6's... they are 5 quarter by 4 inch... which really aren't a full 5 quarters by 4 inches...correct me if I am wrong... but I remember my ex used to use 5 quarter x 4 where a 1x 4 was too thin....