This is the wood itself, made out of slats of western red cedar dimensioned such that the mounting screws for the letters would all be centered on a slat. The horizontal slats are screwed and epoxied to two vertical slats behind; the whole is finished with Olympic Elite "Woodland Oil" in Kona Brown color, an all in one sealant and stain intended for decks.

As I live somewhat near the ocean the stainless numbers had picked up some corrosion. I cleaned the bosses with a small wire wheel in a Dremel tool and sanded the flat surfaces by hand to 400 grit against a straightedge to get a nice vertical grain pattern. Then I applied two coats of automotive wax. I expect I'll have to do this again before too long however; I may end up clear-coating the letters but for now I like how the graining and waxing left it with a satin look.