BACK-TO-BACK CERTIFICATION
Introducing Allied Moulded’s
Back-to-Back fiberglassBox™ Certification
Allied Moulded Products is proud to announce an exciting update to our Made in the USA fiberglass outlet box line. For more than 65 years, we’ve built our reputation on solving challenges for electricians, contractors, and engineers. Today, we’re taking another step forward.
Our fiberglass outlet boxes are now UL-certified for back-to-back installation in a minimal 5½” deep wall stud cavity that has a 2HR rating, without the need for a putty pad. This industry-first certification applies to current stock as well as new purchases, giving you immediate access to a simpler, more cost-effective solution.
Allied Moulded's fiberglassBox™ Nail-On Outlet Boxes Allowed for Back-to-Back Installation
When installed per UL CEYY.9379
2 Hour Fire Rated Walls
Fire Resistance Classification in Wall Assemblies 2-Hours or Less
For use in fire resistance walls constructed of min. 5-1/2 in. deep wood or nonbearing steel studs and gypsum wallboard and gypsum board with Classification periods of 2 hrs or less. Clearance between boxes and cutouts in wall shall not exceed 1/8 in. The area of openings for boxes shall not aggregate more than 100 sq in. per 100 sq ft of wall or partition area with no opening exceeding 35.2 sq in. Outlet boxes on opposite sides of wall or partition may be installed back-to-back.
KEY BENEFITS:
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- No putty pad required – reduces labor time and material costs
- Applies to existing inventory and new purchases – no waiting on a “new” product release
- Certified for 2-hour fire-rated walls – confidence in meeting safety requirements
- Covers a wide range of models – including single, two, three, four, five-gang, and round 3/0 & 4/0 boxes
fiberglassBOX™ Vapor Seal® Included with 2 Hour Fire Rated Walls*
When installed per UL CEYY.9379
2 Hour Fire Rated Walls
Fire Resistance Classification in Wall Assemblies 2-Hour or Less
fiberglassBOX™ models that are approved for back-to-back installation and also contain the Vapor Seal® suffix (V2) will only be allowed back-to-back installation in 2-hour, double layer assemblies.
*V models are only approved for 1-hour fire rated walls
Approved Models:
- 1096 (-N), (-SS)
- 1098 (-N)
- 1099 (-N), (-NV*), (-NV2), (-SS)
- 9327 (-N)
- 9372 (-NMHK)
- 2300 (-NK)
- 2302 (-NK), (-NKV*), (-SSK), (-HNKV2)
- RD (-42), (-42SS)
- 9343 (-NK), (-SSK),(-NC2)
- 3300 (-NK), (-NBK)
- 3303 (-NK), (-NBK)
- 4300 (-NK), (-NBK)
- 4304 (-NK), (-NBK), (-NKV*)
- 5305 (-NK), (-NBK), (-NKV*)
- 9336 (-NK), (-NGK), (-HNK), (-HNGK)
- 9335 (-NK), (-HNK), (-NGK), (-HNGK), (-NKFR)
- 9365 (-NK)
- 9350 (-HNK), (-HNKV*)
- 9351 (-NK), (-NGK), (-NKV*), (-NGKV*), (-NKFR), (-NKFRV*), (-SSK)
- 9352 (-NK), (-NGK)
