HMF Express offers a wide variety of sound control openings from sound transmission class (STC) 38 up to 54.
- All of our STC doors are 1 3/4″ thick
Find out more by clicking on the attachments (below left), or contact our sales team
Features
- Seamless welded butted edge seams
- Proprietary sound deadening core
- Sold as assembly, with frame and seals
- Construction per HMMA 865
Construction Options
- Maximum door width 48″
- Maximum door height 96″
- Flush or 6-panel (STC 38) doors
- Hardware options vary with STC rating (see attachments)
Certifications
- Sound transmission classes per ASTM E413:
- 54
- 51
- 46 single (standard core)
- 46 single (superior core)
- 46 pair
- 42
- 38
Lead Time Options
- Standard: 15 business days¹ ²
¹ Consult factory for options on larger projects or expedited orders
² Lead time based on available capacity at time of order