Can you share the tape you used to attach these to the wall? An Amazon link would be best.

Im currently using 3M command adhesive strips Two large ones along the top edge. They stay up but a couple have fallen after being brushed by, so Im going to try more strips on each one.

Can I use green glue? Is it going to be more effective?

Green glue is not an adhesive, but a layer of soundproofing. It "cures" but never fully dries, and is meant to go between two hard surfaces, not soft. So I don't think it will work.

Is it better to use these on the inside or outside of bedroom door?

I don't think it would matter. You could do both sides.

Why are these listed as 8 x 12" but the ones I received look like kid's samples? They only measure 5.5" x 8.75". They also smell quite awful

you got the wrong ones, return and get new ones

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Sonic Acoustics 12 Pack Hexagon Acoustic Panels, 14" X 12" X 0.4" High Density Sound Absorbing Panels Sound Proof Insulation Beveled Edge Studio Treatment Tiles-Black

Sonic Acoustics 12 Pack Hexagon Acoustic Panels, 14" X 12" X 0.4" High Density Sound Absorbing Panels Sound Proof Insulation Beveled Edge Studio Treatment Tiles-Black

Product ID: 512787472

Details

Brand
Sonic
Item Thickness
0.4 Inches
Material
Polyester
Product Dimensions
35.6L x 30.5W
Recommended Uses For Product
Recording home

🎨Hexagonal stylish wall art design

📌Self-adhesive, no drilling needed

🛠️High-density 300lbs/yd³ polyester fiber

Description

🎧 Elevate your space with soundproof style—because your ears deserve the best!

SLEEK HEXAGONAL DESIGN - Modern geometric panels double as chic decor for your home office or studio
EFFORTLESS INSTALLATION - Peel-and-stick self-adhesive backing means zero wall damage and instant setup
PREMIUM SOUND ABSORPTION - 300lbs/yd³ high-density polyester fiber blocks echoes & reverb like a pro
TRUSTED QUALITY SUPPORT - US-based customer service with hassle-free refunds ensures your peace of mind
VERSATILE ACOUSTIC SOLUTION - Perfect for studios, home theaters, offices, and even ceilings—customize your soundscape

Sonic Acoustics 12-pack acoustic panels feature 14" x 12" x 0.4" high-density polyester fiber (300lbs/yd³) for superior sound absorption. Their self-adhesive backing allows easy, drill-free installation, while the hexagonal design adds a modern decorative touch. Ideal for studios, home offices, and theaters, these flame-retardant, odorless panels reduce echoes and improve sound quality with trusted US-based customer support.

Specifications

ASIN	B08HYR14RF
Best Sellers Rank	#69,445 in Musical Instruments ( See Top 100 in Musical Instruments ) #865 in Acoustic Room Treatment
Brand Name	Sonic Acoustics
Coverage	16.8 square feet
Customer Reviews	4.5 4.5 out of 5 stars (4,578)
Item Dimensions L x W	35.6L x 30.5W Centimeters
Item Thickness	0.4 Inches
Manufacturer	Sonic Acoustics
Manufacturer Part Number	ss-hex12-b
Material Type	Polyester
Model Number	ss-hex12-b
Recommended Uses For Product	Recording studios, control rooms, offices, home studios, and home theaters
Unit Count	12.0 Count

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