Been watching this thread since it was first posted, curious what suggestions would be offered. I've done wood working for a hobby for a long time now. The veneer insert to cover the spot is a good idea, probably something I'd do. While, I'm not enthusiatic about Minwax's Polyshades products but it may be a solution to covering the patch that will not take stain. Polyshades is a polyurethane finish with stain in it. The color is on top of wood, not in it. Enough coats of the polyshade should cover the spot and blend in with rest of wood. Of course, the polyshade would also cover any beautiful natural grain or color in the wood too. Small cans of polyshades available at Walmart and home centers like Lowes and Home Depot.
I find the veneer suggestion interesting and have not discounted it as an option.
I have also been taking a long look at Cabots semi-solids finishes. Yesterday I spoke to a young fellow at Lowes who seemed very knowledgeable about finishes. He and I spend the best part of an hour discussing the project. I had discovered Cabot while searching on-line. Turns out Lowes carries a good bit of their products. He offered some interesting suggestions and provided me with several chips and some literature. Cabots can also be custom mixed. I expressed my satisfaction with his service to the store manager. The manager knew who I was talking about before I mentioned the fellows name. Seems he brought some experiance with him to the company and was quickly promoted to manager of the paint department. He has since been promoted to a managerial position above department manager.
I'll also give Polyshades a look.
I have also discovered faux wood grain finishes using paint. Some examples I've seen look very impressive.
I know that a stock replacement would be the easiest. I want to see what I can do with this one. Besides, with over 48" on snow on the ground, what a great time for a project.
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Thanks again to all that have made suggestions.