The higher the grit number is equivalent to a finer abrasive which creates smoother surface finishes.
What grit sandpaper for hardwood.
Takes out the scratch from 60 grit sandpaper.
Remember the smaller the grit number the rougher the sandpaper and the more material it will remove.
Lower grit numbers represent coarser abrasives that scrape off materials much quicker.
A higher number means a finer softer sandpaper grit.
Takes out 60 or 80 grit scratch.
A lower number means coarser and more abrasive.
Sandpaper grit designations might be the opposite from what you think.
In general begin with a 20 to 60 grit and end with 120.
The grit of sandpapers is a rating of the size of abrasive materials on the sandpaper.
Start with a coarse grit and move to finer grits as the floor begins to get smoother with each sanding.
Start with coarse sandpaper of 36 to 40 grit progress to a medium 60 grit paper and finish with a finer 100 grit.
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.
Do not skip the progression from coarse grades to finer grades.
Sanding grit estimates vary according to the condition of your floor.
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.
Sanding a wood floor is a multi step process.
This is usually the final grit for most standard hardwood floors.