To save money and effort the best choice is to sand the old hardwood floor and to avoid installing the new one over the old floor.
Installing new hardwood floors over old.
If the hardwood flooring is installed nailed down parallel to the direction of the old wood flooring the new wood floors could pull apart leaving open gaps or.
The surface of the old floor needs to be cleaned.
Installing new hardwood over older wood floors can be extremely time saving in lieu of removal that can become expensive dirty and even dangerous depending on how the original floor was installed.
New hardwood flooring over old hardwood flooring.
If your subfloor is already hardwood but you want to improve the look of your home with new material it is possible to lay engineered hardwood over the existing floor with proper preparation and traditional installation techniques.
Pine offers grain textures and knots that create an interesting look on your floor.
However the wood isn t as hard as some other flooring choices.
When installing new wood flooring parallel to an existing solid nail down floor add a minimum of 3 8 plywood underlayment over the existing floor to increase stability.
Or if the thickness of the floor will allow it staple to the existing floor.
Installing new hardwood over old hardwood floors.
Check with the flooring manufacturer for recommendations.
If you will install on top the old floor boards have to be securely fastened try to avoid any loose floorboards.
For instance i will look at much older floors that were nailed into floor joists before the widespread use of subfloors.