Replies

1. 
   mlindy | Jan 20, 2025 11:56pm | #1

   First, make a drawing of the profile of the trim, with measurements. Then look in a catalogue or website of router bits. These will have diagrams of the profiles with measurements. You may need to combine profiles of several bits for the larger pieces. You may be able to match your profiles with bits in stock at a hardware store, but if you have time, you can order what you need You may also find trim pieces with the profiles you want or close to them in a lumber yard/builder's supply store that you can combine to match your profile, which may be the fastest way if you are in a hurry and if you are painting the trim so not concerned about the variety of wood it is. Good luck

2. 
   pantalones868 | Jan 21, 2025 05:40pm | #2

   That is a pretty common design for the crown molding although from place to place the dimensions might vary a bit. You will likely have the same problem trying to match up router bits to come up with an exact match. Step down moldings are a little tricky with a router anyway. I have router bits that could do that pattern but i would be surprised if was an exact match. Those types of bits are not cheap by the way and tend to fry smaller capacity routers. From the pictures it appears to be douglas fir or redwood. Are you in California? I know where to go in the Bay Area for millwork.
   Most likely you want to stay with the same type of wood. The mill work shops that I have dealt with switched from redwood to cedar or about anything but redwood a long time ago because of inconsistent quality but would mill it in redwood if I provided it. A mill will be able to create an exact match and if they have been around a while may possibly already have knives with that pattern. Providing the wood yourself you can maybe hunt down wood that is a close match in terms of grain and color to what you already have. The other option would be to change out the tops everywhere and then you can buy off the shelf.