X research source alternatively you can fashion your own block supports by cutting 4 in 10 cm x 4 in 10 cm boards into 16 in 41 cm sections to fit in between the joists.
How to make a floor from 2x4 ends.
Use a heavy bed of bostic best adhesive 25 feet per gallon to act as moisture barrier and glue.
Lay a row of wood tiles in each direction using tile spacers in between.
Because the cuts are made across the board the end grain is exposed on the face of the tile just.
To make a layout with the least cuts on wood tiles you can dry lay the tile.
Cut the 2 x4 or 4 x6 in 3 4 or 1 slices.
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Also called wood block flooring end grain floors are made of tiles cut from timber ends.
Mark the center of the area and remove the end grain flooring.
This means just placing the tiles without mortar or permanent adhesives.