1. when I specify width, is that with the panel stretched out, so if I want any sort of pleating I need to add that in myself? And part b of this question is how much do I need to add? If the width is 12 ft and I'd like it to hand like drapes, how much more is required in the width? For curtains, panels add a width of at least 50% more or double the width, Or You can select the Box pleated curtains and you don't have to add any extra width because it's already pleated. Here is the link for box pleated curtains https://www.saaria.com/box-pleated-backdrops.html 2. what lining (in addition to sound-deadening lining would you recommend for the "sun room", I'd need something that is good in a moist area - the sunroom is made of aluminum and conducts heat/cold, and generates some moisture. the sound-deading lining already comes with Blackout lining. for moisture control, we have waterproof fabrics. Please email me some pictures of the installation area.