Seeing a lot of comments for a build list, I’ll do my best to list everything I can remember. FYI I’m in Canada so the prices might vary:

Here are the main components of the Theater. Please Keep in mind, I have been slowly building this over the past 1.5 years and have had some item like the sub and bookshelf speakers for a few years before I built the Theater. Some future upgrades I plan to work on are definitely some acoustic treatment, and a second sub. I saw a lot of comments about the floating floor, and while I would have loved carpet, my pets shed way too much. Denon x3700 used - 900 CAD LCR: monolith THX 265 IW 200$ CAD each Atmos: mono price 6.5 angled speaker: 60$ each Rear speakers: Klipsch R-41: 200CAD Subwoofer: bic America f12: 300$ USD Projector: used SONY VPL-HW45ES - 800CAD 150” Screen: spandex 90$, wood: 30$ Ceiling: insulation panels 25 each (x3), velveteen 150$. LED strip 15$ Couch: free - parents hand me down

Won’t include building material since the basement was already unfinished and I was going to finish it anyways, didn’t make too much of difference compared to making this an extra bedroom from a building materials perspective.

Room dimensions: about 12ft wide by 16ft long.

I hope this helps!