SOSS #218IC 20-Minutes Fire Rated Invisible Closer Hinge (Each)

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Sale price$148.58 Regular price$198.10


SOSS #218IC 20-Minutes Fire Rated Invisible Closer Hinge (Each)

SOSS® Invisible Hinge model #218IC is ideally suited for most types of doors that are 1-3/4″ thick. The model #218IC is made of zinc and steel materials. Nylon links provide added strength and durability. The SOSS Invisible Closer gives you a door closer that is totally invisible from either side when the door is closed. The closure rate is completely adjustable with an allen wrench after installation, and does not require removal of the closer. Installation can be either inside the door itself or inside the door jamb. SOSS® Invisible Hinges open a full 180° and are a single action hinge.

The Underwriters Laboratories labeled the model #218IC SOSS Invisible Hinge can be used on hollow metal, sheet metal, tin clad, steel composite or wood core swinging type fire doors and frames with a 20 minute rating. Allow one closer for every 55 lbs of door weight or portion thereof. Fire rated doors also require one fire rated hinge for every 20″ of door height or fraction thereof. The calculation that requires more hinges is the total number of hinges required.

Recommended spacing for use of one closer is half the distance from the center line of the door to the center line of the top hinge. Please reference the hinge spacing drawing.

Wood and machine screws are included.

Additional Information

Application Full Sized Entry, Metal, Wood
Min. Material Thickness 1-3/4″
Fire Rating 20 Minute
Power Transfer No
Closer Yes
Counter Bored Screw Holes No
Screws Included Wood and Machine
Packaging 1 / Box = 1 Each
Packages Per Container 1 Each
Price Per Each


Door Thickness 1-3/4″
Spring Closer # 218IC
A 1-41/64″
B 3/8″
C 7″
D 1″


SOSS #218IC 20-Minutes Fire Rated Invisible Closer Hinge (Each)

Invisible Closer Hinge Spec

218IC Handing Diagram

Hinge Sizing Chart

Cased Jamb Detail

Clearance Detail

Hinge Location

SOSS Hinge Calculator


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