Installing wood floors is a lot more complicated than painting your walls or replacing the hardware on your kitchen cabinets.
First of all, you will be spending several thousand dollars on material alone, so if you damage it, it’s not as easy as buying another $30 gallon of paint or $200 of hardware and starting over again. Plus, wood flooring requires special tools that you will likely have to rent and will have little experience using.
More importantly, however, you will need to make sure the room you’re working in is flat, that the subfloor material will work for wood flooring, and that no moisture issues are present that will damage the wood long-term. Testing for moisture requires special tools as well, and you must test both the subfloor and the flooring to ensure a successful installation.
In addition, you will need to know how to center the room, how much space should be left for expansion gaps, how to work around obstructions like closets, fireplaces, bay windows, staircases, and cabinets, and if you make cutting mistakes, you may end up running short on your material and not have enough to finish the job.
In some cases, you may not be able to exactly match the lot, much like running short of paint sometimes results in a slight color difference when mixing a new gallon.
The bottom line is that installing wood floors is not recommended as a DIY project. In the long run, you will save money and time by using a professional.