Oak flooring wood filler

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Forum topic by Josh posted 01-21-2014 05:01 AM 1376 views 0 times favorited 10 replies Add to Favorites Watch
View Josh's profile


1201 posts in 1989 days

01-21-2014 05:01 AM

Sooo, I usually am in the business of making boxes and whatnot. But, due to severe boredom on the subject, I decided to tear up the carpet and linoleum in our open-floor-plan first floor. Through the Craigslist grapevine, wife and I were able to get almost enough low-grade oak flooring to fill the space. It’s so low-grade that now I need some wood filler to fill all the knot holes. Question: we are laying 360 square feet, sooooo what do you recommend?

-- Tree, wood, and box lover from Pennsylvania

10 replies so far

View crank49's profile


3979 posts in 2390 days

#1 posted 01-21-2014 05:42 AM

Mix the sawdust from your final sanding with shellac and rub the mixture onto the floor using burlap.
At least that’s the way my dad did it for 50 years.
Always worked great for him.
Large holes like knots would have to be filled with the mixture by putty knife in more than one session. allowed to dry between each.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View Skylark53's profile


2624 posts in 2480 days

#2 posted 01-21-2014 03:14 PM

Josh, Michael is giving you a good solution. It might be a bit tricky to get the mix just right if you’ve not done it before. Minwax makes one that they market as “stainable”. It works very well, right out of the tube and it sticks and holds, but, I have had no luck in getting it to accept stain. So, if you’re going natural, it would be excellent and easy; if you are planning to stain mid to dark, you’ll have a bit of a challenge with it. The refinishing crews I work with here try not to fill any because it is always so very difficult to blend the color of the filler material. With either of these methods, I would recommend only filling the very worst ones, don’t knock yourself out trying to fill all the imperfections because they may well look worse than without filling.

-- Rick, Tennessee, John 3:16

View Hammerthumb's profile


2513 posts in 1395 days

#3 posted 01-21-2014 07:34 PM

If it is #2 common or cabin grade flooring, I would fill the large knot holes with epoxy. Wood fillers are not meant to fill large gaps or holes. Sawdust with shellac is fine for filling small gaps or pours in the wood. Make sure you screen the sawdust so you are just using small particals. There are commercially avialable wood fillers made by Woodwise, Bona Kemi, or other manufactures that are easier to use for this purpose. These products are still not recommended for large gaps or knot holes.

-- Paul, Las Vegas

View bigblockyeti's profile


3570 posts in 1140 days

#4 posted 01-21-2014 08:03 PM

+1 for the epoxy filler, you can also dye it with the ink from a BIC pen.

View rrww's profile


263 posts in 1533 days

#5 posted 01-21-2014 08:27 PM

We use dyed epoxy it works great. Works better than messing around trying to match the color of each board. With some of the stuff you find in the box store- make sure that it dries hard, many of the fillers stay soft. Try to find one with as little shrinkage as possible.

View oldnovice's profile


5651 posts in 2787 days

#6 posted 01-22-2014 01:05 AM

Try Timbermate , a wood filler from Australia available from many U.S. sources.

It’s non toxic, virtually no wasted material, can be intermixed or mixed with other mediums, water based, and water clean up. Any left over material can be put back in the container and used again as a little goes a long way!
I have used it on projects and floors with good results on both.

As it is water based, a sealer must be used if a water based finished is to be applied.

-- "I never met a board I didn't like!"

View Heavy's profile


118 posts in 2008 days

#7 posted 01-22-2014 01:10 AM

Use epoxy that is softer (not rigid) when cured and mix it with some oak sawdust. You can also give it some other sawdust to create an artificial knot. Does the job quite nicely and lasts a lot.

View Clint Searl's profile

Clint Searl

1533 posts in 1781 days

#8 posted 01-22-2014 01:25 AM


-- Clint Searl....Ya can no more do what ya don't know how than ya can git back from where ya ain't been

View BentheViking's profile


1763 posts in 1984 days

#9 posted 01-22-2014 01:28 AM

epoxy was my first thought

-- It's made of wood. Real sturdy.--Chubbs Peterson

View Josh's profile


1201 posts in 1989 days

#10 posted 01-22-2014 04:43 AM

Thanks y’all. We got most of the wood from two separate ads on Craigslist but now we still need 100 square feet. Lotsa knots! And you never know when Craigslist is going to deliver exactly what you need. We wanted to go all recycled/reused but we will have to visit lumber liquidators tomorrow or the next. Waiting for wood acclimatization is going to be hard because we just wanna get it done!

-- Tree, wood, and box lover from Pennsylvania

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