INSTALLING BAY WINDOW

[XGLAIZER]

I am a retired glaizer. never installed a bay window. I currently have a 4030 opening. going to install a 5040 bay window. I know i have to reframe and install a new header but iam not to sure how the outside should be finished off or if the window will need any bottom support. The window i will be installing is a pella with cable support. any help will be appreaicated

[RicodJour]

The cable support is to keep the projecting part of the window from sagging. It doesn't support the entire weight of the window, so yes, you do need to have a structurally sound framed opening all the way around.

Pella's web site has a downloadable PDF file with installation instructions.

A bay window's framing can a little different than a typical window rough opening so make sure that you measure from the correct point and install the correct blocking on the sides. Here's a link to Andersen's section details (didn't have Pella's information handy): R

[m Ransley]

Is a bay in there now, whats in there now.