Friday, April 1, 2016

The Doors, Vol. 2


It's like painting the Golden Gate Bridge: As soon as we finish some task it's time to do it all over again.

Case in point this week is the back door to the upstairs kitchen. I "fixed" this a few years ago (March 2011) but now it was time to fix it for real. When we moved in (exactly six years ago today!), this door had one panel cut out, probably for a cat door. The DPO had replaced the empty hole with a cheap piece of plywood. We, in turn, replaced that with a finely crafted replacement panel that lasted about five years.

My mistake was in making the replacement out of MDF, which doesn't stand up to weather very well. After five years of getting rained on, it was coming apart. So I un-hung the door, put it up on saw horses, and removed all my old work. What a mess. Now we're back to the way it was five years ago, with a hole in it.

This time, the replacement panel is made out of solid pine, which should withstand the weather much better. It's also got several coats of primer and caulk around all the edges so that it won't trap water anywhere.

The real trick, though, is getting the panel into place. The door was originally assembled in pieces with tongue-and-groove panels, rails, and stiles. The panels are "trapped" inside grooves cut into the rails and stiles, so you can't just casually pop in a replacement without disassembling the entire door. Cutting out the old panel was easy. Putting in a new one is a whole different problem.

What I wound up doing was building up the replacement panel in three pieces, like a kindergartner's jigsaw puzzle. One piece fits into the top and right-hand grooves. A twin piece fits into the bottom and left-side grooves. And a third piece goes in between the other two, forcing them apart to create a snug fit. Once they were all assembled, I glued and sanded the whole assembly to hide the seams.

Once that was done, I recreated the raised panel in the middle using another piece of solid pine. (There are two of those; one on each side of the door.) That was fairly straightforward: Bevel off the edges using a table saw at about 35 degrees, and then add the eight vertical grooves with the router. I sanded off all the sharp edges and even nicked it in a few places to make it look old and worn.

One problem I didn't anticipate was curling. I splashed some primer onto the raised panel, and the moisture in all those parallel grooves caused it to roll up like a cylinder. I had to spray some water onto it and weight it down with my toolbox to get it to lie flat again. After a few days it was fine and I could attach the two raised panels onto the door panel, one inside and one outside. Then a few more coats of primer and some more caulk made sure it wouldn't trap rainwater.

Here's the replacement panel next to an original one. Can you tell which is which? With any luck, these should last another five years or so!

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