Acoustic Door Soundproof STC-35 STC-45 Steel and Fireproof

Acoustic Door

Three options to meet soundproofing needs.

We offer a comprehensive range of soundproof door solutions to create a quiet and comfortable living space. Our products are divided into three sub-categories, allowing you to choose according to your needs and budget:

1. Original Door Optimization (Old door thickened + sealed)
2. STC-35 wooden soundproof door
3. STC-45 steel soundproof door

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Technical Source

Scientific basis, Field experience

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Mandarin Oriental Hotel Rooms

Option 1: Thick old door + seal

• Paste 2 layers of sound insulation material on the original door
• The top layer is ENA NE-100 sound insulation cotton, and the bottom layer is NE-200 sound insulation blanket.

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Five-in-one package

Can be DIY or installed by us

product	Specification Quantity	Function Description
ENA NE200 Soundproof Blanket	1 x 10m roll	Thick sound insulation blankets can effectively reduce noise penetration and improve the sound insulation performance of the door.
ENA NE100 sound absorbing panel	25 pieces (30x60cm)	Sound-absorbing panels can absorb and eliminate reflected sound, reduce indoor echo, and improve indoor sound quality.
Selly nail glue	4 sticks	Make sure the acoustic panels and blankets are securely fastened to the door.
Double sided tape	a roll	Install sound-absorbing panels and insulation strips easily and quickly.
Ena Mute door gap soundproofing strips	9mm x 6 meters	Effectively prevent noise penetration in door gaps and improve the overall sound insulation effect.

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Actual measurement 

of the effect after optimization

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British Standard (Fireproof)

SGS Laboratory Certification.

Based on fire protection tests approved by the Hong Kong Fire Services Department (British Standard BS-476-6 Fire Retardant Requirements for Walls and Ceilings)

Passed Hong Kong Science and Technology Park SGS laboratory inspection (I=6.4, Class 0 requirements)

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EU standards (Harmless)

(Formaldehyde emission EN717 Part1)

(mg/m3=0.05, Super E0 grade)

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US standards (Effective)

(Sound absorption performance ASTM C423-23)

(aw=0.36, NRC=30%)

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Safe and effective,

model designated by major institutions

• ENA sound insulation and sound absorbing products have been used in the following properties
• Attached are documents and photos of relevant usage records.
• You can use it safely even in places where licensing is required.

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Option 2: STC-35 wooden soundproof door

• 35 decibels of sound insulation
• High-quality wooden materials, environmentally friendly and durable
• The set includes wood, door frame, threshold, and lock

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Option 3: STC-45 steel soundproof door

• 45 decibels of sound insulation
• High quality steel, strong and durable
• The package includes wood, door frame, threshold, and airtight soundproof lock

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Combined with the full range of Ena,

the effect will be much better

• All sound insulation products have passed safety certification
• Experimentally tested and proven safe and effective

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Frequently Asked Questions Q&A

1. Which three options can meet my sound insulation needs?

Answer: We offer three options: Option 1: Old door thickening + sealing; Option 2: STC-35 wooden soundproof door; Option 3: STC-45 steel soundproof door.

2. Option 1: What are the advantages of thickening + sealing the old door?

Answer: Option 1 is the cheapest method. You can paste 2 layers of sound insulation material on the original door to improve the sound insulation performance.

3. Option 2: What are the characteristics of STC-35 wooden soundproof door?

Answer: STC-35 wooden soundproof door has a sound insulation effect of 35 decibels, uses high-quality wooden materials, is environmentally friendly and durable.

4. Option 3: What are the characteristics of STC-45 steel soundproof door?

Answer: STC-45 steel soundproof door has a sound insulation effect of 45 decibels. It uses high-quality steel and is strong and durable.

5. What are the prices of the three options?

Answer: Soundproof door optimization (old door thickening + sealing): $2980; STC-35 soundproof door (wooden door): $13,000; STC-45 soundproof door (steel door): $17,000.

6. What are the installation costs for the three options?

A: The installation cost for all three options is $2980.

7. Is shipping included?

A: Shipping fee is included.

8. Is the cost of moving stairs included?

Answer: The cost of moving the stairs is not included.

9. Is the off-island shipping fee included?

Answer: The outbound shipping fee is not included.

10. What products need to be purchased when using Plan 1?

Answer: The set includes five products: ENA NE200 soundproof blanket, ENA NE100 sound-absorbing panel, Selly nail glue, double-sided tape and Ena Mute door gap soundproof strips.