Sanding a wood floor is a multi step process.
What grit sandpaper for hardwood.
Start with coarse sandpaper of 36 to 40 grit progress to a medium 60 grit paper and finish with a finer 100 grit.
The grit of sandpapers is a rating of the size of abrasive materials on the sandpaper.
Takes out the scratch from 60 grit sandpaper.
Do not skip the progression from coarse grades to finer grades.
The higher the grit number is equivalent to a finer abrasive which creates smoother surface finishes.
In general begin with a 20 to 60 grit and end with 120.
That way you ll get a heads up on and hopefully the knowledge to avoid some of the problems you might encounter and some of the mistakes beginners make.
Sandpaper grit designations might be the opposite from what you think.
A lower number means coarser and more abrasive.
A higher number means a finer softer sandpaper grit.
Replace the abrasive belt after sanding about 250 square feet for most effective results.
This is usually the final grit for most standard hardwood floors.
This is usually the final grit for maple birch or other particularly hard woods and for any floor that you would like to stain.
Start with a coarse grit and move to finer grits as the floor begins to get smoother with each sanding.
Can take out.
None of it is rocket science but it will help you to read through all the sanding pages including first things first working with sanders and edgers and the sanding faq before you begin.
Takes out 60 or 80 grit scratch.