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Restoring stool and apron window trim

654 Views 7 Replies 4 Participants Last post by  laostrich
Hi there,

Working on mini kitchen renovation. Previous owner cut bottom section of the window trim and laid tile over. The area has been demoed and wondering if I can take on building stool and apron with limited carpentry experiences.

Window sill are slanted down as it supposed to be( I think, to direct the rain water away) I’ve seen a video where a stool was notched to follow the angle. But it didn’t explained what kind of router bit was used or what other hand tool/ machine one needs to use in order to achieve.

I have a router( that haven’t been used) no bits
Worksite table saw ( with limited use )
Miter saw
Circular saw
Jig saw

Also would you guys recommend replacing whole thing or cut new angle cut and add only missing bottom parts by using Dutchman repair technique?—-


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There is no angle needed on a stool, just the outside sill has an angle.

Your stuck now with having to replace all the trim because you cut off those two side pieces, no way would I try and just patch in a piece!
There is no need for a router.
Apron goes on first, stool then the two side pieces.
The stool gets notched out using a jig saw so it will fit tight against the window frame.
The fastest way to mark the needed cut is with a compound mitre square.
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Urghhhh, Another out of hundred thing that I owe to the previous owner.

Thank you. They are all thee windows with side casings in between and I’m glad that I went here to ask. Wanted to do it proper but the wood trim is original to the house and I saw Dutchman door repair video for yet another busted at knob door fix ( probably from mortise lock to cylinder lock conversion, this will be sixth door that needs some kind of repair on these area)And I thought maybe I can go that route. Your suggestion is noted. Thank you.

One thing still not clear though. Since the window sill is slanted, even at inside of the house, 15 degree? I could be wrong, but about that degree. the whole windowsill piece sitting sloped. So after apron is installed first, shouldn’t underneath of still need to cut in that angle to fit snug to match the angle of the sill? Am I missing something?
Tilt the blade in the table saw to 15* rip the edge off the stool and the apron

Tilt the mitre saw blade over to 15* to cut the bottom of the styles
Practice with plywood scraps or 2x4s.


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The bottom of the stool cap can be slanted to match the angle of the sill.... as in the images on the right side of this photo.


You dont HAVE to do this, you can also just put down an angled filler piece, because you want the top of the stool to be flat and level. It does not angle down like the sill does.

Stool can slip in first, under the trim on the sides. Then the apron goes under it. Fasten the apron to the wall, shoving it up tight to the stool. Then fasten the stool to the apron with a few well placed nails. Also fasten it to the sill.
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Thank you, glad to know that there are some options. Copied it be angled fillet? I’ve googled both filler and fillet and fillet looks like it will fit the description.
An angled filler. A piece of wood that is beveled at the same angle as your sill and shaped like a small triangle when viewed from the side. Cut on your table saw. Sills are usually sloped between 10-15 degrees.

You can also cut your stool to have this angle. You can also do that on your table saw.
Thank you for the detailed explanation, so grateful for everyone’s generosity. I’ll try few scraps over this weekend.
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