We put the horizontal boards in place and painted them. I absolutely love the look of plank walls! We got a new toilet, sink, faucet, and light fixture. Jordan built the sink base with some reclaimed lumber. We laid the wood flooring, sanded, and painted it white. Jordan turned the awkward, wasted space (unseen in the picture but to the left of the sink) into a closet. I painted the room in a white cream and the ceiling in my most favorite shade of gray.
When we remodeled, we knew we wanted something narrow and simple for a vanity. But locally, there is literally nothing that is narrow enough and ABSOLUTELY nothing that is remotely attractive! Nothing! So that is why months beforehand we had purchased our most favorite IKEA sink that we had to have in the worst way! Believe me guys, Ikea has the absolute best price on sinks! And they're attractive! For the base size we needed, we used about 5 ft of barn wood.
We lightly sanded the wood to get the extreme roughness and slivers gone. Then we wiped it down with a linseed oil which protects it and waterproofs it, and we like it because it's natural. Occasionally, 2-3 times a year, I wipe the sink base with the oil to give it more luster.
We screwed lag bolts on the front of the base. If you do something similar, you're going to want 2 inches of penetration into the other piece. So consider the thickness of the board and add 2 inches more. If the wood is really old and dry, you may want to go with even longer bolts. Before using the bolts, we primed them twice with a self etching primer and then spray painted them black with two coats. Touch up with a black sharpie, if needed, after you use your ratchet to screw them in.
Now to anchor it to the wall. You can use a 1x4 or 2x4, whatever you can fit with the plumbing, fixed onto the wall. Then screw your sink base box into the sides of that 1x4, making sure that you're going into the wall studs. Check again and again that it's LEVEL! If it is, run a bead of silicone along the side to attach to the wall. But don't silicone anything until you are sure that it's exactly where it needs to be. Also siliconed: the sink to the base. That sink won't be going anywhere with the silicone attaching it.