Replies

1. 
   PhillGiles | Jun 06, 2003 06:00pm | #1

   If I correctly understand your question; yes, bisecting the angle is the commonly recommended method if you want two similar pieces to meet in a mitred joint.

   .

   Phill Giles

   The Unionville Woodwright

   Unionville, Ontario

2. 
   skids | Jun 06, 2003 06:19pm | #2

   not sure i understand the question, and maybe it is me who is stupid, have never heard of "facial" board. do you mean fascia, the board that is usually visible and nailed to end of the rafters perpendicularly? i assume you mean the rafters are at a 5 in 12 pitch but is the fascia a 2x12 board or is it also at a pitch of 2 in 12? i am sorry i don't understand the question but dividing by two, or bisecting the angle is exactly the way to get two pieces to match up exactly on a butt joint. in other words if you have a 2x4 cut at 90 degrees the butt end is 3 1/2 inches. if you have another 2x4 cut at 45 degrees the end measures 5 inches. if you cut both at 22 1/2 degrees both ends are about 3 7/8 inches in length and match up exactly when butted and the angle turned is still 45 degrees in both.

1. 
   tenpenny | Jun 06, 2003 06:44pm | #3

   you mean like here?

1. 
   skids | Jun 06, 2003 07:39pm | #5

   yeppers ten hey check out the complex stud answer!

2. 
   brownbagg | Jun 06, 2003 08:10pm | #6

   yes, like that

3. 
   GregGibson | Jun 07, 2003 12:05am | #7

   TenPenny,  That board's warped !  I'd toss it and get another one.

   Greg.

2. 
   Qtrmeg | Jun 06, 2003 07:11pm | #4

   I think he is talking about running rake trim, but I got stuck on dividle.

   Anywho, bisect the angle, and use the reciprocal for chopping the trim. You could also use two pieces of scrap, and mark where the long and short points meet, test and fiddle. This is always a fiddle case, trim doesn't fit when you cut it from the plans. I guess if you do enough of it you know when to add a degree, and you can get close the first cut.