Home Depot periodically (maybe quarterly) has free upgrades to solid core with Jen Weld. You can also find a larger selection of brands and better quality doors (not referring to JW, I don't know where they stand) at some lumber yards. This post was edited by snookums2 on Sat, May 4, 13 at 14:16

47 7/8" is awfully darn close to 48", a standard size. 59 7/8" is awfully darn close to 30" x 2, a standard size. Why not just buy the standards and shave off 1/8" with a table saw? On the 41 7/8" one, can you either widen or narrow the opening by 6" to get it to a standard size? Of course, for that cost, you could probably just buy custom doors. Another thought: take your existing louvered doors, cut out the louvers, then add an 1/8" plywood panel on the back side, turning it into a recessed panel door.

Check out Simpson doors...made in the PNW. But I think they're sold all over the country. They have some great Shaker style 3 and 5 panel doors that come in bifold, and in multiple choices of woods.

kudzu, there are no jambs. The pivot base is screwed right into the top and bottom of the door opening on the problem door; thus into the wood under the drywall at the top, and into the wood floor at the bottom. I just went and checked it. The base is secure top and bottom. It's the metal pivot going into the door that is wobbling. The door starts tilting at the top, where it starts hitting the side of the door opening at the top. When the people installing the doors installed them, I guess they didn't know that a solid door needed more. I ordered the doors custom made so I could stain them to match my kitchen, and they did say they'd never seen anything like them. Last time he replaced them, my husband just went to Menard's and bought them, so I don't know if they were labeled for load capacity. Said if these failed, we were out of options. That's got to be it. Thank you so much for telling me about this! These are just too flimsy for the load of the solid wood oak door we bought. The door is tilting again. What kind of load capacity should I be looking for? Should I just weigh the door when we take it off? Can you get a variety of ones with different loads at a common home improvement store, or is this something I will need to order?