I've had contractor installed Marvin Tilt-Pacs for over ten years. The sashes are sturdy with no glass seal problems. If you can afford it, get the dividers between the glass panes instead of applied grids, as applied grids are an inconvenience during cleaning. The sash tilt-in feature is hard to use. Marvin Tilt-Pac balance mechanisms and sash liners are a problem. After replacing a number of balance mechanisms, I find that the internal metal pulley frames fail (pot metal?). They just aren't strong enough for the spring tension. When they let go, the balance mechanism self-destructs from the spring load. More often than not, balance mechanism failure also breaks a piece out of the top of the plastic sash liner. Even if you DIY, repair parts are expensive, and time consumming. Marvin's warranty has been worthless. Marvin's current warranty on new products may have improved from what it was. Do your research, there may be better products out there. theodocius

I would suggest that you may be looking at an appropriate product in the "Magnum", if you decide to place one single double hung window within your wide opening. The reason that this series/type of window (Magnum) is made available for commercial openings is due to the fact that commercial openings are predominantly large and therefore require additional structural support to maintain integrity. In other words, this line varies slightly from the next lower line in only the addition of some additional structural support. Therefore, if you are looking for a single window to fulfill your width specification, this would be the series/type that fulfills that one wide window type. There are other quality manufacturers that design oversized windows with the structural integrity required for these large openings. Marvin is a good manufacturer, as are companies like Eagle and you might also look at Kolbe. I am least familiar with the currect Kolbe double hung product, but they revamped their other product lines recently, and did a wonderful job. I think the Eagle line is named "Monumental".

Millworkman, so u sell 98% Vinyl products to the commercial industries..that's great.. Sadly, you did attack me. Exclamation points are a sign of excitement or to show how strongly you feel about what you are saying. Like yelling at me in with your words not your voice. However, I wish I was talking to you face to face or over the phone, much more comfortable for me that way. Whatever,,it is what it is now... i gave too much information. All you need is the Product Code from the Energy Star Label (maybe the Licensee # too) and the websites to go on, ..there are not many people who would think to breaking down the information on the Energy Star Label as I did. I know soo much about Windows..."windows are not just windows" There are Standards that must be followed, paperwork to fill out explaining the test, name of the Lab that will do the testing, an IA to approve, for each unit that is tested, and $$$.$$ for each unit that is tested, if you are a member, you pay less than those who are not members.. The only reason I can think of for constantly attacking HOW I explained my situationand over the facts of the situation, was to distract the reader. People have a tendency to follow along, to be a part, to fit in...that's ok, my own fault for taking the chance. I should have listened to my inner voice that was totally afraid to do this at all..and not posted my situation. I have been trying to explain, since May..before the installation was complete, that these windows are not what I ordered, than find that they are no longer an active windows, they have been in the archives for ...when realizing they told me this much info, they were not willing to tell me how long or when the Energy Performance Ratings expired.... From whom I recieved this information, you can guarantee, is with out a doubt, solid as a ROCK, reliable source! Now don't go and focuses on the fact that I did not receive what I ordered. The fact is that THE ENERGY PROFORMANCE RATINGS, FOR EACH WINDOW, ARE IN THE ARCHIVES..THIS HAS EXPIRED. There really is an explanation date for windows... If you know how to find this out for yourself, do that. oberon476 has short sentences and paragraphs. Consider this as puzzle you downloaded. Have fun with it! We will call it "The Mystery of EPR for Marvin Windows" Find clues the clues in oberon476 biography...remeber, Have fun with it! Nassau Door & Window, E-Z Touch Home Improvement & Remodeling Inc., and Super Enterprises (they distribute Marvin Windows in Queens), .. **Oh, I have to add Marvin Family of Brands also, they told me they Manufactured and Mulled the 2-Wide and the Bay Window..These windows were dumped off on me because I paid in full, by check, on April 3, 2017 when I placed the order with NDW..**can I blame them for Windows from Marvin? Maybe if I put down $200.00 and gave the balance later? I don't know...I need a good set of testicles like you millworkman. 4 months of this...I can not explain the toll this has taken in my life..as this has been nothing but back and forth..as you all have done, not seeing the facts just the nonsense in between...I can not break this down any smaller than I have! I can not move forward. I am holding the family back from moving forward... **. reason for questioning

Hi Gableandchairs, I know your post was many years ago, but I was just wondering what you did for window shades? We installed the same windows in 2007 before I realized there was no flat surface to install shades on. I’ve thought about the suggestion about shims. Would love to see some information, steps, or pictures of how to make and use the shims That Epiarch Designs suggested. I’m wanting to started remodeling rooms and get new window coverings. Any other ideas or suggestions from anyone would be greatly appreciated.