Everywhere in our house is wood and we really need to finish it so it washes up easily and doesn’t need to be planned again. It’s been a major pain to plane but we are only a few small walls away from being done. We have been researching what the best product is to finish the massive amount of wood we have in our log house and I think we (Milly) has decided on Tung Oil mixed with a citrus thinner. It’s supposed to be less toxic and doesn’t turn yellow over time. It kind of has a golden color to it but it keeps the wood fairly close to the original color. We are going to apply it to our stairs (we are hoping the treads are ok with this treatment as they will have a lot of traffic on them) and the log walls and window trim. We built the basement stairs out of 2×12’s but they sanded up really  nice and look great with the Tung oil applied. We cut out, routered the edges, and sanded the treads. We used a stair calculator online and it gave us all the measurements to make our stairwell even. It’s a bit steeper than normal as we needed to cut out a step as the run is smaller than normal to give more room upstairs. We closed in the stairs with good one side plywood. The plywood was attached before the treads were screwed down. You can kind of see the predrilled holes for the screws on the picture below. We then plugged the wholes and applied the Tung oil. To apply Tung oil we mixed the oil with the Citrus solvent on a one to one ratio. We applied three coats the first day after letting the oil sit for around an hour in between. We then wiped off the oil and let sit overnight. We then applied another two coats the next day and are letting the stairs sit for week before calling walking on them. As soon as the stairs are cured we plan on calling in the electrician to do his thing. We have railing being built and the basement frost walls being framed in. It feels like we are getting close but we still have a good couple of months before we are ready to move in.