Is it cheaper to replace a floor joist or to try and repair it?
In discovering a cracked or broken floor joist, you will have options to replace the floor joist or to repair it. You should look at costs for both labor and materials.
Costs for Repairing or Replacing a Floor Joist
In comparing costs for repairing a floor joist versus replacing it, you'll need to include costs for labor and materials. Combined labor and material costs will be much higher to repair the joist if you pay a contractor to do the work. Even if you supply the labor and factor in only material costs, your costs will still be lower than if you repair.