Bow Window

sourmash

I just installed a bow window and I have to cut the window jambs that came with it.The walls are not perfectly plumb so the cuts are not going to be straight so I cant use the fence on my table saw.I need them to follow the curve of the wall so the molding will fit tight without any spaces.I was going to cut them a little bit on the big side then use a belt sander to take it down to the line but im not sure if thats the best way to do this.I started to do it with a jig saw but the top & sill are over 7' long and hard wood. it will take forever and it was coming out wavey and the molding would not sit flat ,there would be lots of spaces.any help would be appreciated.

StairBuilder

Hola, I would probably cut it down close to the line (1/16" heavy or less) with a skill saw and then finish it with a belt sander like you said or a power planer would work well.

One other thing- If you back bevel the jamb slightly it will fit even tighter.

Jeremy E

How long would it take with a jig saw? Longer than it would to sit down at the computer, type your post, then wait for responses???

Tom M

You should not be using a jigsaw here. You should cut the jamb straight on the table saw or slight angle free hand. I cut the jamb a little light on the short part and break the drywall with a hammer. After you trim shim your molding where it sticks out and caulk the gap. Splitting the difference is the key here. If you have a good hand you can plane it down while in place.

WNYcarpenter

I agree 100%. Drywall is so easy to manipulate...Any painter here resents this, but it's a lot cheaper to do a quick drywall patch than ruin a custom milled piece. Often doing a light skim coat lessens the gap btw the casing and drywall.