It might keep your cost basis down
Several of our hives are built from discarded old fence boards and they look fine. In this part of the world (Pacific NW) those are often 3/4" thick cedar! Usually have to cut off the bottom 18" because of rot but that leaves plenty of wood to build 2 sides of a medium Lang box or the top half of one side of a Top Bar hive (assuming you use 2 planks per side). I doubt you could charge extra for having used recycled lumber but it may give you a larger profit margin, assuming the lumber is free or cheap and there is enough of it available to meet your needs.