Go Back  DoItYourself.com Community Forums > Interior Improvement Center > Paneling and Trim
Reload this Page >

1/4 round molding angle for bay windows

1/4 round molding angle for bay windows


Old 11-23-04, 01:46 PM
Visiting Guest
Posts: n/a
Exclamation 1/4 round molding angle for bay windows

I'm trying to find tutorials or instructions on how to measure the angles to cut on the 1/4" round moldings for bay windows.

I know that 45 one way and 45 on another, another way makes 90 degrees corners.

But on a bay window?

Anyone can point me at the right direction. This is hard to explain but I'm stuck.
Sponsored Links
Old 11-23-04, 02:28 PM
Join Date: Nov 2001
Location: Taylors, SC
Posts: 9,483
Actually, you need to measure the angles involved and go from there. If the angle is 45 degrees, then cut the two pieces 22.5 degrees and so forth.
Old 02-03-05, 01:54 PM
Join Date: Dec 2004
Location: Parsippany, NJ
Posts: 123
Standard Bay windows are either 30 degrees or 45. Fold a square piece of paper in half, corner to corner - this yields a 45 degree triangle and will tell you which you have. Your option is to either cut each piece of moulding at one half the angle ( 15 for a 30 degree window or 22 1/2 for a 45) and match them together, or to leave one piece full to the end and cope the other to it.
Old 02-03-05, 02:29 PM
Join Date: Dec 2004
Location: Parsippany, NJ
Posts: 123

The 45 or 30 angle is the inside wall. Think of the deck of the window
as a trapezoid /_________ \ - longest leg is the one even with wall. Call that A. Opposite/parallel that is the outermost window (on many bays this does not open) - call that C. The two sides are B and D respectively.
a bay is labeled (45 or 30) measuring the angle between A and B, or between A and D.
The angle you are trying to figure is probably the one between B and C or between D and C (they are the same. ) On a 45 degree bay this angle is 135, On a 30 degree bay this angle is 150. Again, either use that angle for the ends of your piece for side C and cope the others (B and D) , or halve the angles and butt them.
Hope that helps.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes