Model 4511251 Wood Door - Acoustical

Perimeter Seal: Single "H" Gasket

Bottom Seal: Super "H" Door Bottom

Door Thickness: 1.75" / 44.45mm

Min Frame Depth: 4.75" / 120.65mm

Max Leaf Size: 48" x 120"

STC Rating: 45

Max Fire Rating: 3/4 hr up to 8' height only

Single "H" Perimeter Seals

This door is equipped with our patented single Super "H" door sealing system. It consists of a single compression type perimeter seal, along with a metal retainer and cover. Compression seals typically offer higher acoustical ratings The seal is composed of a felt/neoprene combination that forms a tight perimeter seal.

Super "H" Door Bottom

Overly's super "H" door bottom is the only choice for unbeatable sound control. Always used in conjunction with our cam-lift hinges, this door bottom compresses tightly against the floor. We recommend smooth level sealing surfaces for this door bottom. Uneven or abrasive flooring may prematurely wear the door bottom. A smooth raised threshold is recommended when using this door bottom.

UL Fire Ratings

In addition to acoustical testing, Overly has successfully tested this product to the latest UL fire test standard UL10C/UBC 7-2(positive pressure).

Recommended Hardware:

Locks:

Cylindrical

ANSI A156.2, Series 4000 Grade 1
3-3/4" Back-set Required

Suggested Models:

• Best 94K
• Schlage "D" Series
• Sargent 10 Series
• Corbin/Russwin CL3300

Mortise

ANSI A156.13 Series 1000 Grade 1
3" maximum rosette diameter

Suggested Models:

• Best 35H
• Sargent 8200
• Schlage "L" Series
• Corbin / Russwin ML2000

Exit Devices:

Mortise

ANSI 156.3, Grade 1
3" maximum case width

Suggested Models:

• Sargent 8300
• Von Duprin 9875/9975

Rim

ANSI 156.3, Grade 1

Suggested Models:

• Sargent 8800
• Corbin/Russwin ED6200
• Von Duprin 98/99

Surface Vertical Rod

ANSI A156.3, Grade 1

Suggested Models:

• Sargent 8700
• Von Duprin 9927
• Corbin/Russwin ED6400

Hinges:

Full Mortise Cam-Lift

Suggested Models:

• Overly MCL-500

Thresholds:

Saddle

Must have smooth top, no ridges or grooves

Suggested Models:

• Reese S105
• Pemko 154
• NGP 412
• Zero 164

Closers:

Surface Mounted

ANSI 156.4 Grade 1
Rigid arms are not recommended.

Suggested Models:

• Corbin/Russwin DC2000, DC3000, DC4000
• Dorma 8600, 8900
• LCN 4010, 4020, 4041 Super Smoothie
• Norton 7500, 8500
• Sargent 250, 251, 350, 351, 1230, 1231, 1250, 1251

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