Source for Asymmetric Oak Entry Door Threshold

Easy enough for a carpenter or millwork shop to make them for you. Sketch it up, fax it over to the millwork shop and have them give you a price. A competent carpenter could make them on the job with a tablesaw and a hand plane.

Yeah. Take the old one out, and either machine/whittle one that looks just like it, or take it to a custom millwork shop. There is no such thing as a 'standard' threshold- every maker rolls their own for each model/series of door they come up with. Even 'universal' replacements usually end up having to be field-modified to fit. (BTDT). I suppose matching a 52 year old style is possible, given the right small-town lumber yard or door specialist, but it ain't real likely. I'd suggest checking door aisle at local Habitat ReStore or archictectural salvage place, but anything they have is likely to be as tired as what you want to replace.

Are the rest of the door assemblies anything special? (ie, custom size, round top, special detail and trim work, etc?) On a 1955 house, I would look at switching them out with modern insulated and weather-resistant exterior prehungs. Unless you go 'designer', they aren't THAT expensive, work a lot better, and are a big plus if you plan on selling the house in next five years or so.

aem sends...