Hi, I made this magnetic knife board using American Cherry wood. I routed out two channels on the back and put in some neodynium magnets. I then filled with resin. I had to sand back the resin going up to about 20k to get it totally smooth and transparent. I used parrafin oil on the wood and finished with a bit of a beeswax mix. I sanded the wood to about 3k and it it so smooth it feels like plastic but has the warmth of wood. The board was made to fit 270mm knives but will probably even fit some 300mm. It finished up better than I expected.