Fill Small Cracks With Wood Putty Fill small cracks under 1/8 inch with a matching color of wood putty. Use a putty knife to push putty into the crack until it is slightly more than full, then scrape the excess off to leave the surface flat. Let the putty dry and then sand it, if necessary, with a fine-grit sandpaper.

Should you fill in cracks on hardwood floor?

For normal gaps, no repairs are needed. Adding filler is not a good idea; it will get pushed out as the wood expands with moisture. For larger gaps that don’t close up, call in a professional contractor who can repair floors properly. The best times to repair hardwood floors are April and October.

How do you fill gaps in hardwood floors cracks?

Quote from the video:
Quote from Youtube video: From side to side avoid puddles forming and apply the material evenly if the filler becomes too solid pour a little more extra fill onto it and mix it together using the flexible spatula.

Why are there cracks in my wood floors?

If you have cracks in your hardwood floor, the problem is likely to be low humidity and low moisture in the room, causing the wood to dry out. This could happen for a number of reasons, including: open fires, log burners, underfloor heating system running too hot, and also the frequent use of air conditioning units.

Will polyurethane fill cracks in wood floor?

Sawdust and Unfinished Floors

Mix the dust with some polyurethane and fill the cracks. Note that this method only works on an unfinished floor and will clash with pre-finished floors.

What kind of wood filler should I use on hardwood floor?

The most common and widely used wood floor filler is latex. Latex filler is water based, stainable similar to soft wood, easy to apply and sand. All manufacturers produce their fillers is several popular colors, many provide colored fillers to match most wood species including imported woods.

Will polyurethane fill gaps?

Quote from the video:
Quote from Youtube video: We're basically wet sanding with the poly urethane to create a wood and polyurethane mixture that fills the pores.

How do you refinish a floor with gaps?

For very wide cracks along the joints between boards, rope might be the best repair option. You can stain the rope in a bucket before inserting it into the cracks with a putty knife, or insert the rope into the cracks and add color by brushing on wood stain a little at a time until it matches the rest of the floor.

How do you fill gaps in wooden floor boards?

How to Fill Floorboard Gaps With Wood Strips

  1. Cut the Strips. Measure the width and length of each gap between floorboards. …
  2. Glue the Strips in Place. Apply wood glue to the sides of each strip and gently tap it into the gap, using a mallet or hammer. …
  3. Sand and Stain the Strips.

Can you refinish wood floors with gaps?

Repairing Hardwood Floor Gaps

Trowel filling after sanding is the easiest way to repair deep gashes, dings, and gaps when refinishing your floors.

Can I use caulk instead of wood filler?

Yes, you can use caulk instead of wood filler for filling wood gaps, cracks, frames, trims, corners, and sealings. Both caulk and wood filler is used to fix cracks or gaps. Mostly caulk is used to fill gaps in corners and edges while the wood filler is used to fill gaps, cracks in flat surfaces.

Which is better wood putty or wood filler?

Let’s clear up the confusion right now: Wood fillers can be sanded and stained and are best used on unfinished woodwork. Wood putty is best for repairing cracks and small holes on finished woodwork.

When should I use wood filler on hardwood floors?

Quote from the video:
Quote from Youtube video: A professional wood floor craftsman knows when to fill. And when not to fill open seams and cracks in the floor. Since would typically expands in the spring.

Why is my wood filler cracking?

Wood filler cracks because it hasn’t dried/hardened enough. The rule of thumb of applying wood filler is to wait for the surface to completely dry before heading into the next step. Also, the wood filler can crack due to insufficient layers applied.

What can I use instead of wood filler?

To make a versatile wood filler for free, just grab a paper plate and combine Elmer’s or any other wood glue with sawdust.

How do you fill gaps in wood at home?


  1. Make Some Sawdust. Sand a piece of sample wood that matches the project material. …
  2. Mix the Wood Filler. Gather the cleaned sawdust into a small pile. …
  3. Apply the Wood Filler. Push the putty by hand into the gouge, scratch, or hole in the work material, then remove excess by hand. …
  4. Finish the Project.

How do you hide seams in wood?

Quote from the video:
Quote from Youtube video: This what basically what you do is you take and you rub it diagonal to the to the scene. So that you force it into the seam. There. Now it'll have a rough look to. It. Just keep going down here.