What's up TalkBass! I decided to build my own reflection dampening panels for my garage, so that I can record a drumset in it without it sounding like the four horsemen of the apocalypse getting into a fight using pots and pans inside of a subway tunnel. So buckle your britches, turn up the subs, fire your drummer, and follow along with my mistakes and misadventures. I make learning fun! The basic idea behind panel construction is thus: a 2'x4'x2" panel of pressed fiberglass and mineral wool framed by 1"x2" wood strips, with a fabric covering stapled to the frame. The basic product will look something like this: Now then! On to the annoying details! Materials: 24 insulation panels. The internet recommended Rockwool Comfortboard 80, which comes in packs of 6 and can be bought for 55 - 60 bucks. You can pick them up at Lowes or Home Depot, but make sure you call ahead to the store in question. The majority of either don't carry it in stock. It took me about an hour and a half of searching and calling customer service numbers before I finally found some at a Lowes the next city over from me. https://www.lowes.com/pd/ROCKWOOL-C...th-Sound-Barrier-24-in-W-x-48-in-L/1000339775 COMFORTBOARD™ 80 rigid mineral wool continuous insulation sheathing board | ROCKWOOL 39ish 8 ft long 1"x2" strips. For two lengths of 4' and two lengths of 2' per board, with a 85% scrap rate, it works out to about 39 individual lengths. We'll see how much I actually use by the end of it. Home Depot had em at $1.15 per, which comes out to about $55. 9 8ft 1"x3" strips. $17 4 3M 90 all purpose adhesive sprays. $13 each. 2 bottles of Gorilla Wood Glue. 6$ each A couple hundred #6 1-1/2" wood screws. $5 per hundred. Approx 40 yards of fabric of your choice. The cheapest stuff I found at Hobby Lobby was plain black @ $5 per yard. This stuff is pretty pricey, I'd look around a bit more and see if you can get it cheaper. $160 for plain boring black t-shirt material is pretty steep. A box of staples for a staple gun. $11 at Home Depot. 50 1/4 2.5" toggle bolts. $59 50 1" hooks. $3 Total so far for the stuff: $639. Seeing that the cheapest I could find a pre made panel was $57 each, I figure the savings of $729 total is a pretty nice incentive to build your own. Now then, to business! Here's the garage I'm working with. Never mind the clutter, I'm still moving in and in the process of getting rid of a bunch of stuff and unpacking a few more things. The first step is to measure up the sides of your Rockwool panel and make your cuts to the 1"x2" accordingly: Then, with the fiberglass panel in the middle, drill and impact in two wood screws per corner to form a snug wood frame around the Rockwool. This can be tricky, as the the wood pieces tend to not be perfectly straight. Just do your best and try not to strip out as many screws as I did. Ya know how technically correct is the best kind of correct? I'm technically screwed: Remember: it's not up to TalkBass standards unless there is a marked lack of expertise, experience, and professionalism involved, so a few ill-measured pieces and ruined screws are to be both expected and lauded. Luckily, it doesn't really matter much how pretty it isn't, as long as it doesn't fall apart if you kick it. Your finished frame will look something like this: Now, carefully remove the frame and set it down somewhere, preferably on top of some old plastic or newspaper. Take that 3M adhesive spray, and shoot a thick line of it all the way around the Rockwool panel. Then, shoot another thick line of it all along the inside of the frame. I warn you: this stuff gets everywhere. I made a damn mess all over my old foldout table, the concrete floor, my hair (yes, my hair ), random objects in the room, etc. Find somewhere safe to do this, folks. Next, put a nice bead of wood glue around the inside of the frame. Once you're done, carefully put the frame back around the Rockwool panel. This will take some shimmying and finagling, but should slip back on there without too much fuss. Now that you've made a mess and put together the basic part of your first panel, go pour yourself some scotch and reflect on your poor decision making that led you to this crackpot endeavor. I recommend Ardbeg Uigeadail - the extreme peat bomb should distract you from all the insulation fibers that are digging into your skin. Alright, now that you've got a decent few completed and your wrists are starting to scream at you... It's time to staple on some fabric. This part is pretty straightforward: Lay your length of fabric out straight and unwrinkled on a table surface, and lay one of your panels on top of it, leaving enough at the end for it to wrap around the other side of the frame. Cut the other end where you need it, then staple it all to the back. And again, you'll have the basic package done and ready to go! I'll continue updating this throughout the next week as the build continues, including bass traps, mounting, and decoration. Thanks for reading!