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capecodder 06-05-2011 05:58 PM

Octagon Window Issue - Need Help
Hi guys,

I need help regarding an issue with an octagon window in my half bath. The rough opening is 23.5" by 23.5". Ive tried to find a replacement for my 28 year old octagon wooden window and this doesnt seem to be an easy task. The window is all rotted and I just moved into the place a year ago. I want to replace it before it begins to leak. Ive been replacing the current windows in the home with andersen 400 series dbl hung since they too are all rotted. I tried to get an andersen octagon window but the minimum rough opening is 24.5" x 24.5" and this would obviously leave me with an inch difference on each end. Im familiar with the andersen installation using their flange setup. I was looking at the pella octagon but this windows doesnt have flanges but require stops? I also dont want to replace it with a $100- dollar window at home depot. I would like something in vinyl construction or at least wood with vinyl exterior. Any ideas where I could look? I also dont want to modify the exterior clap board. Any help is greatly appreciated.


Just Bill 06-06-2011 06:32 AM

Redo the framing. That window will be there for a long time, don't skimp by going to a cheapy window. You may even be able to cut out part of the old framing, if it is not part of the supporting structure. That type of window generally starts as a basic box opening which is then modified for the window. As long as the header is wide enough, changing the fill-in, is fairly easy.

IMHO, Andersen is an excellent choice, from a quality, as well as a value point of view.

capecodder 06-06-2011 07:34 PM

Thanks for the reply Bill,

Ive thought about modifying the sill plate and trimmer studs to make the andersen work with my application (assuming the header is wide enough). My RO is actually 23.5" from top to bottom and 24" wide. I could modify the sill plate, but i would have to remove the drywall to replace the trimmer studs and that might be more work than i really want to do for my little half bath.

I did go to a Harvey dealer showroom today (since they were my second window choice) to see if they offered an octagon window for my application. Although harvey did not, they do sell Century windows which do offer a octagon with vinyl exterior, venting too. Have you any experience with this company?


CluelessinCT 08-02-2011 11:56 AM

Century octagon

Did you ever get any feedback on the Century vinyl clad, vented octagon window? I have the same issue in regard to the rough opening and additionally I'm relocating for work in a little over a year. I'd like to get a decent window so as not to adversely affect resale and I had considered the Andersen 400 series as well but don't want to go overboard for a place I'm only going to be in ~ 1 yr more. Bottom line - any info on Century and/or any other manufacturers you found that make a decent mid-level window would be greatly appreciated.


capecodder 11-10-2011 01:32 PM


Sorry for the late reply. I must have overlooked the e-mail. I ended up going with a vinyl "American Craftsman" octagon window from home depot. They had it in the size that I needed. I did look into the century window and from what I read their quality is quite poor. Alot of reviews stated that folks had issues with them leaking and wood rotting. I broke down and went to HD and got the American Craftsman. After I installed it, I wish I would have gone the extra mile and paid the extra money for the Andersen 400 Octagon. Jeldwen was also a choice I considered.

Sorry for the late response.

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