Buy the width you need
Hoping to save some money by ripping wide boards into narrower pieces? When you rip wide boards, internal stresses change, and they’ll likely warp a bit. This means restraightening an edge between rips. You’ll need a jointer or other straightening method for this. Instead, find the straightest boards you can that are closest to the width you need. Ripping off 1/4 in. is far less likely to cause a board to warp.