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Truss Identification - Dixieline Lumber - Truswal Systems

Truss Identification - Dixieline Lumber - Truswal Systems

Truss Identification - Dixieline Lumber - Truswal Systems

(OP)
zhusize (Structural) 13 Jan 12 14:32 thread1066-314035: Require info of trusses by Dixieline Lumber used in 1980s
"I have a project to add heavy equipment on existing building floor. The floor truss identifications are: FFK-28-24-92.5(19), FR-28-25/18-35(24), M-24-4-40(2/2), CG-4-35, CAR-28, FR-20-18-35, etc. I need to determine if the floor has reserved capacity to support proposed equipment, but I don't have the truss info. Looking for help. Thank"

The identification system was created by Rolfe Bole of Truswal Systems, (Tustin, CA) in the '70s. Dixieline manufactured trusses in National City (San Diego) using drawings prepared by Truswal, which found that a reference number on each drawing allowed a quick lookup in an already designed library of trusses (pre-computer days).
Generally the system was TYPE-SPAN-SLOPE/DEPTH-LOAD(oc). For your job;
FFK-28-24-92.5(19) = FlatFloorTruss 28'span 24"deep 92.5psf 19.2"oc
FR-28-25/18-35(24) = FlatRoofTruss 28'span 25"leftDepth 18"rightDepth 35psf 24"oc
M-24-4-40(2/2) = MonoTruss 24'span 4:12pitch 40psf 2tcPanels/2bcPanels
CG-4-35 = Cornergirder for 4:12slopes 35psf

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