Endgrain Floor - Made from scratch #2: Buying the Materials

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Blog entry by Thomas Porter posted 05-26-2008 08:58 AM 21672 reads 3 times favorited 7 comments Add to Favorites Watch
« Part 1: Endgrain Flooring (Cobblewood) Part 2 of Endgrain Floor - Made from scratch series Part 3: Getting things going... »

Please don’t use regular grout like me. The wood shrinks slightly and is allowed to move because of the urethane adhesive remaining pliable. There’s tiny little cracks where the wood has separated on the outer tiles in the room. It’s not going to weather well, so I’m replacing the grout in the near future. Thank goodness endgrain floors are cheap material cost. :-) Everything else I did was fine, but the grout was an experiment that proved bad. I’ll leave this project here so you can see it, but be warned – I have now decided to try other grout mixes using flexible wood filler or epoxy/resin/sawdust mixes.

I went and picked up a bunch of stuff from Home Depot the other day. I love the fact that I get to buy crappy lumber. Usually I blow lots of money on exotics or quality domestic hardwoods. Picking up a bunch of Douglas Fir beams is cheap. They were $19 a piece for 12’ beams of 4×8 (actual size 3.5”x7.5”).

I also picked up some polyethelene moisture barrier and tongue and groove douglas fir plywood (22/32”). This is what I’ll be using for the subfloor. I installed the polyethelene and the subloor that afternoon. It’s a quick job… cutting the subfloor with a skill saw with about a quarter inch of fudge room. Subfloors don’t have to be perfect. They just need to be flat. Here’s where I was at the other day…

endgrain floor
endgrain floor
endgrain floor
endgrain floor

-- Thomas Porter, Phoenix, AZ,

7 comments so far

View Scott Bryan's profile

Scott Bryan

27249 posts in 4871 days

#1 posted 05-26-2008 12:50 PM


You have a good start on this project. This is going to be an interesting project.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View ND2ELK's profile


13494 posts in 4823 days

#2 posted 05-26-2008 02:29 PM

Is the sub floor floating or attached? Thanks!

-- Mc Bridge Cabinets, Iowa

View Thomas Porter's profile

Thomas Porter

127 posts in 5180 days

#3 posted 05-26-2008 06:37 PM

Yes, the subfloor is nailed in using masonry nails.

-- Thomas Porter, Phoenix, AZ,

View Bravesfan's profile


5 posts in 4892 days

#4 posted 08-09-2008 02:55 AM

I look forward to seeing the finished project. Don’t forget to stagger the seams of the subflooring, it adds strength to the floor and can help prevent future problems in case of movement.

-- Mike and his helper "Stoli"

View Karson's profile


35270 posts in 5449 days

#5 posted 08-09-2008 04:19 AM


-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Appomattox Virginia [email protected]

View Thomas Porter's profile

Thomas Porter

127 posts in 5180 days

#6 posted 08-09-2008 06:08 AM

Too late on the staggering subfloor idea, but it’s a good one. I don’t think I’ll have much problem with it since it’s such a small room and since it’s so dry in Arizona, but you never know. It’s anchored really well so it’s very unlikely that it will move at all. There’s more pictures and stuff coming soon I promise. I haven’t dowloaded the images from the camera yet, but I just finished sanding/staining the floor and I’m about to polyurethane it and grout it. Not much longer and I’ll have a finished project! Woo hoo!

-- Thomas Porter, Phoenix, AZ,

View jreist's profile


3 posts in 3627 days

#7 posted 05-06-2011 12:13 PM

Did you use the 22/32” fir plywood as a subfloor or an underlay over your existing subfloor? Would a 1$ underlay be enough?

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