Glazed acoustic doors - the best solution?

Hello, I am looking for some guidance on the best way to go about making a sound-proof timber-framed glass door. I have tried to read everything I can find about using glass as a sound barrier, but still have some basic questions on how to plan the project. The doorway connects the intended studio/recording space with a small single-glazed greenhouse that will have no studio/recording function, and the reason that the door needs to be sound proof is to avoid annoying the neighbour (approx 10 yards away). The reason I am going for glass is so I can let as much light as possible in. The issue is complicated slightly by the fact that the doorway is actually about 9 feet high, so I would have to build an additional glazed panel above the door. I imagine as a minimum I would need a double-glazed door with 8-10mm glass. However, because the doorway is very deep (approx. 18 inches), I could plan for two single-glazed doors instead, if that were preferable. I have attached a sketchup plan of the building with a lot more information on my intended design here: http://www.johnlsayers.com/phpBB2/viewtopic.php?t=9431 If anyone can offer some suggestions, or is aware of where I can find a suitable design for my door(s), I would be very happy to hear from you! Chris

greetings, I'm not an expert... but i had similar questions for my studio. Your idea of framing a standard door, then an additional glass window above the door seems to be the way to go. Also, using two seperate doors with that much space would also be the preferred method. For my studio, I used two fir double glazed doors. Before I installed them I contimplated replacing the double glaze with a single thicker plate, but now that I have everything built, they are not my weak point. (flanking from the ceiling is). I think the doors were less than 300 each. If you re-glaze them, probably add another 500(each). You can see what I did here: http://www.johnlsayers.com/phpBB2/viewt ... c&start=30 and another conversation about doors and glass here: http://www.johnlsayers.com/phpBB2/viewt ... highlight=

Thanks sandledfoot, appreciate the help. I have had a look at your massive project, it's fascinating to follow your progress with your great creative innovations. It looks like you're heading for the home straight... I have decided to start my modest project by buying a standard exterior two-panel door (with nothing in the panels) and glazing the upper part with 1/2" laminated glass. As I don't need the bottom half to be glazed I plan to fit it with something that will offer maximum sound insulation (any ideas? is mdf as good as anything?). Above the door I will form a panel that will be glazed like the door. I intend to get door seals by a company called Lorient (www.lorient.co.uk). If that doesn't give me enough isolation I'll add another door, possibly solid core - and that will probably raise similar double-threshhold issues to the ones you had to deal with! Apart from the doors and the existing window, the really weak point is the ceiling (I am fortunate to have 18-inch thick stone walls all round and a concrete floor). Right now I am considering the merits of a clip and channel system against a resilient bar system to fix to the joists before adding plasterboard. The first is almost 10 times as costly as the second, but can it be 10 times as good??!!! While I was writing this reply the postman called and delivered Rod Gervais' book (finally!) so it looks like I'll have some good bedtime reading for a while... Chris