Replacing interior window sill

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Old 12-01-08, 06:03 AM
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Replacing interior window sill

I'm installing larger interior window sills 5 1/4" the old ones were 3" and had a simple square stock piece of wood holding it up with just another piece of window trim underneith as the apron. the new sill must be able to support 32 adult male cats 28 lbs total. Here is my thought of how to set it up and I want to know if this is a good idea:

1. Install a larger piece of square stock maybe 2". Screw and glue attachment.
2. Install crown molding under the sill as an apron

I think that will be a good look and provide adequate support. Perhaps I'll get some additional support from the crown? Thanks.
 
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Old 12-01-08, 03:40 PM
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Sounds like Maine Coon cats, but surely you jest??? If my calculator is correct, that is close to 900lbs. Window sills are, for the most part, decorative, not supporting anything heavy. And you would need something wider than 5 1/4". I assume there is more going on this sill, like a platform???
 
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Old 12-01-08, 04:07 PM
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LOL @ the cats!

I'd suggest you glue and screw the window stool onto the sill/jamb from underneath using pocket screws. If you don't know what pocket screws are, just google "Kreg pocket hole jig". The single hole jig and step bit are about $20 in stores. You'd want to use 1 1/2" screws to attach 5/4... 1 1/4" screws to attach 3/4.

IMO the crown would look a little strange. A standard sized apron to match the casing would be fine, I would think.
 
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Old 12-02-08, 05:30 AM
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HAHA I can't believe by typo. The weight is correct at 28 LBS TOTAL. But it's just 2 cats (NOT 32) at 14lbs/ea.

My only concern with the standard size casing is with the 2" square stock underneith the stool, the standard casing might not fit over it well. Also it might look strange with the stool sticking so far out into the room with nothing under it.

I guess I could just mock it up and see what it looks like but I don't want to buy all that crown without knowing.

Anyone know where i might find some pics?
 
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Old 12-02-08, 07:34 AM
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Found some pics

My setup does NOT look like this,

http://lh5.ggpht.com/_5L1RlaUnvQk/R5...0/DSCF0847.JPG

The window frame is flush with the interior surface of the wall framing. Meaning the only depth is from the edge of the window frame to the surface of the drywall, 1/2" or so. So that's why I think going with a crown underneith might work. since it will be sitting out from the wall almost 5"

I'm going to try that Kreg pocket hole maker. See how that works.

Jeff
 
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Old 12-02-08, 03:36 PM
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That could work, better than 32 cats.
 
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