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How to read the UL system code for Joint Systems:
The systems are identified in this category by an alpha-alphanumeric identification system.
The alpha components identify the type of joint system and whether the joint system has movement capabilities.
The numeric components identify the nominal joint width. In the case of head of wall joint systems,
the width of the joint does not include the voids created under the crests of metal deck floor or roof systems.
The third alpha character is either S or D. The S signifies joint systems that do not have movement capabilities.
This D signifies joint systems that do have movement capabilities.
The first two alpha characters identify the type of joint system as follows:
Alpha Characters
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Description of Joint System
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FF
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Floor-to-Floor
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WW
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Wall-to-Wall
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FW
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Floor-to-Wall
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HW
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Head-of-Wall
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BW
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Bottom-of-Wall
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CG
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Wall-to-Wall Joints Intended for use as Corner Guards
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The numeric component uses sequential numbers to identify the nominal width of the joint systems.
The significance of the number used is:
No. Range
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Nom Joint Width
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0000 - 0999
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Less than or equal to 2 in.
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1000 - 1999
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Greater than 2 in. and less than or equal to 6 in.
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2000 - 2999
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Greater than 6 in. and less than or equal to 12 in.
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3000 - 3999
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Greater than 12 in. and less than or equal to 24 in.
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4000 - 4999
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Greater than 24 in.
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UL Joint Systems with Graphics:
(click on system to go to UL System listing, click on format to open graphic for the system)
Graphics for Systems using A110SP are not yet available
Copyright © 2008 Fire Protection Technologies, Inc. All rights reserved
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