Sanding a Wooden Floor

Welcome to the floor sanding and sealing guide at DIY Focus the DIY Blog

Some of you may know that DIY Daddy got a new flat not that long ago and that much of the DIY Advice that I add to DIY Focus is from plans and research that will be getting done to my flat in order to add value to the flat. There are some easy ways to add value to a flat and they don't need to be big DIY projects either.

You should see some of the DIY disasters in the flat from the previous owners who appeared to be big fans of paint effects from rag rolling to textured paint effects with sand.

So on the topic of sand this post is about sanding a floor!

Just one of the many tasks ahead of DIY Daddy is to sand the floors throughout the flat, many old flats have wooden floors and simply sanding and sealing a wooden floor can make a room look great.

Prepare the floor before sanding

Before sanding the floor it is essential to prepare the floor ensuring that it is ready to be sanded this will also help to ensure that it will look good when you are finished.

  • First you want to make sure that there are no huge gaps in the floorboards
  • Second you want to make sure that no nails protrude from the wooden floorboards

Mind the Gap
Small gaps are not too bad and can add character to an older house, but ideally you don't want to have big gaps between floorboards. The best solution is to find a narrow bit of wood cut it to size and glue it into place between the floorboards.

If you have a large gap it is an idea to lift the floorboards and to relay them with an additional floorboard to fill the gap.

Hit the Nail on the Head
Use a hammer and punch to make sure that you have no nails protruding from the floorboards, this will ensure that when you are sanding you will have no major problems.

Sanding the wooden floorboards

It is always a good idea to hire an industrial sander in order to sand the wooden floor effectively. I would recommend renting two types of sander a heavy duty industrial drum sander and a rotary edge sander.

Using the drum sander fit a coarse abrasive sheet of sandpaper and work in a diagonal strip across the floor overlapping slightly. The drum sander will not reach the edges hence the rotary sander!

diyfocus tip - be careful that if you stop or start the sanding machine that you tilt it back from the floorboards otherwise you risk damaging the wooden floorboards.

Once you have finished fit medium grade paper and start to sand the floor working parallel to the floorboards again overlapping slightly on each pass. Then finally repeat with you guessed it fine grade sandpaper.

Sanding the edges

Now to sand the edges of the floors..

Use the rotary sander and and again use use course, medium and fine grades of sandpaper making sure that the sander is constantly moving or you risk damaging the wooden floorboards. Again like with the bigger sander make sure that you tilt the sander back when starting and stopping it.

Now you are almost done with the sanding except the fiddly bits that are not too accessible, Ideally you can use an electric hand sander to get a good finish here these are relatively inexpensive and will ensure that you get a good finish.

Now we are done with sanding the floorboards it is time to seal them.

Sweep the sanded floor and then use a hoover to get all the dust out of the gaps. Once you have done this wipe the floor clean with a cloth and let it dry before applying the varnish.

1st coat of varnish should be thinned down so that you can apply easily and neatly, you should work with the grain of the wood.

Now you have sealed the floor with the 1st coat you can smooth out any lumps or speck with a small piece of sandpaper. Now move onto the 2nd coat of un-thinned varnish and then apply the final coat after the 2nd coat has dried.

You should now have a fantastic looking newly sanded floor that will look great for a long time. If anyone has any additional floor sanding or even floor sealing tips please feel free to leave a comment..



Nice writing. You are on my RSS reader now so I can read more from you down the road.

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