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Vertical Shaft Wall Limiting Heights

Intermittent Air Pressure Load (wind load)-psf. Stud Spacing of 24" o.c.

Vertical Shaft Walls limiting heights are taken from Progressive Engineering Report AER-09038 (pdf) and USG Cavity Shaft Wall Systems Catalog - SA926 (pdf) . Visit Progressive Engineering Inc. Product Evaluation Reports to learn more. Visit USG Cavity Shaft Wall System on USG.com

Stud Depth (in.)
Allowable Deflections
Pressure Loads (psf)
Fire Ratings
Shaft Wall System
Heights (min. - max.)
Meets the requirements for structural integrity of exit enclosures and elevator hoistway enclosures for High-Rise Buildings (Section 403.2.3. of the 2012 International Building Code) when minimum 4-inch, 20 gauge framing members are used in conjunction with a base layer of Fiberock® VHI or SHEETROCK® Brand Mold ToughTM VHI, in a minimum 2-hour fire resistance rated assembly.
Steel Member Designation Stud Spacing Allowable Deflection Load Fire Rating Shaft Wall System Limiting Height
212CH20-34 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 13'-5" (161 in.)
212CH20-34 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 14'-2" (170 in.)
212CH20-34 24 in. L/120 5 PSF 3 hr. UL System System H - Stair Wall 14'-2" (170 in.)
212CH20-34 24 in. L/120 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 14'-3" (171 in.)
212CH20-34 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 14'-3" (171 in.)
212CH20-34 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-3" (147 in.)
212CH20-34 24 in. L/240 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-10" (154 in.)
212CH20-34 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 12'-10" (154 in.)
212CH20-34 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 13' (156 in.)
212CH20-34 24 in. L/240 5 PSF 3 hr. UL System System H - Stair Wall 13' (156 in.)
212CH20-34 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-10" (130 in.)
212CH20-34 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 11'-6" (138 in.)
212CH20-34 24 in. L/360 5 PSF 3 hr. UL System System H - Stair Wall 11'-6" (138 in.)
212CH20-34 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 11'-7" (139 in.)
212CH20-34 24 in. L/360 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-7" (139 in.)
212CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 11'-8" (140 in.)
212CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stair Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 12'-5" (149 in.)
212CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
212CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-3" (135 in.)
212CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 11'-3" (135 in.)
212CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stair Wall 11'-5" (137 in.)
212CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 11'-5" (137 in.)
212CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-6" (114 in.)
212CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 10' (120 in.)
212CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stair Wall 10' (120 in.)
212CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-1" (121 in.)
212CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 10'-1" (121 in.)
212CH20-34 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-8" (128 in.)
212CH20-34 24 in. L/120 10 PSF 3 hr. UL System System H - Stair Wall 11'-3" (135 in.)
212CH20-34 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 11'-3" (135 in.)
212CH20-34 24 in. L/120 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-4" (136 in.)
212CH20-34 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 11'-4" (136 in.)
212CH20-34 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-9" (117 in.)
212CH20-34 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 10'-2" (122 in.)
212CH20-34 24 in. L/240 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-2" (122 in.)
212CH20-34 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 10'-4" (124 in.)
212CH20-34 24 in. L/240 10 PSF 3 hr. UL System System H - Stair Wall 10'-4" (124 in.)
212CH20-34 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-7" (103 in.)
212CH20-34 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 10 PSF 3 hr. UL System System H - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-2" (110 in.)
212CH20-34 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 9'-2" (110 in.)
212CH20-34 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-3" (111 in.)
212CH20-34 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 9'-10" (118 in.)
212CH20-34 24 in. L/120 15 PSF 3 hr. UL System System H - Stair Wall 9'-10" (118 in.)
212CH20-34 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 9'-11" (119 in.)
212CH20-34 24 in. L/120 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-11" (119 in.)
212CH20-34 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-6" (102 in.)
212CH20-34 24 in. L/240 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 8'-11" (107 in.)
212CH20-34 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 8'-11" (107 in.)
212CH20-34 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/240 15 PSF 3 hr. UL System System H - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 7'-6" (90 in.)
212CH20-34 24 in. L/360 15 PSF 3 hr. UL System System H - Stair Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 8' (96 in.)
212CH25-18 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 11'-5" (137 in.)
212CH25-18 24 in. L/120 5 PSF 3 hr. UL System System H - Stair Wall 12'-2" (146 in.)
212CH25-18 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 12'-2" (146 in.)
212CH25-18 24 in. L/120 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-4" (148 in.)
212CH25-18 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 12'-4" (148 in.)
212CH25-18 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-7" (127 in.)
212CH25-18 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 11'-2" (134 in.)
212CH25-18 24 in. L/240 5 PSF 3 hr. UL System System H - Stair Wall 11'-2" (134 in.)
212CH25-18 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 11'-4" (136 in.)
212CH25-18 24 in. L/240 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-4" (136 in.)
212CH25-18 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-4" (112 in.)
212CH25-18 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 9'-10" (118 in.)
212CH25-18 24 in. L/360 5 PSF 3 hr. UL System System H - Stair Wall 9'-10" (118 in.)
212CH25-18 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 10'-4" (124 in.)
212CH25-18 24 in. L/360 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-4" (124 in.)
212CH25-18 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10' (120 in.)
212CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 10'-8" (128 in.)
212CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stair Wall 10'-8" (128 in.)
212CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 10'-10" (130 in.)
212CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-10" (130 in.)
212CH25-18 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-3" (111 in.)
212CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stair Wall 9'-9" (117 in.)
212CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 9'-9" (117 in.)
212CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 9'-11" (119 in.)
212CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-11" (119 in.)
212CH25-18 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-2" (98 in.)
212CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 8'-7" (103 in.)
212CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stair Wall 8'-7" (103 in.)
212CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-1" (109 in.)
212CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 9'-1" (109 in.)
212CH25-18 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 9'-1" (109 in.)
212CH25-18 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 9'-8" (116 in.)
212CH25-18 24 in. L/120 10 PSF 3 hr. UL System System H - Stair Wall 9'-8" (116 in.)
212CH25-18 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 9'-10" (118 in.)
212CH25-18 24 in. L/120 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-10" (118 in.)
212CH25-18 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-4" (100 in.)
212CH25-18 24 in. L/240 10 PSF 3 hr. UL System System H - Stair Wall 8'-10" (106 in.)
212CH25-18 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 8'-10" (106 in.)
212CH25-18 24 in. L/240 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9' (108 in.)
212CH25-18 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 9' (108 in.)
212CH25-18 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 7'-5" (89 in.)
212CH25-18 24 in. L/360 10 PSF 3 hr. UL System System H - Stair Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 8'-3" (99 in.)
212CH25-18 24 in. L/360 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 8'-3" (99 in.)
212CH25-18 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 7'-11" (95 in.)
212CH25-18 24 in. L/120 15 PSF 3 hr. UL System System H - Stair Wall 8'-5" (101 in.)
212CH25-18 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 8'-5" (101 in.)
212CH25-18 24 in. L/120 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 8'-7" (103 in.)
212CH25-18 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 8'-7" (103 in.)
212CH25-18 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 7'-4" (88 in.)
212CH25-18 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 7'-9" (93 in.)
212CH25-18 24 in. L/240 15 PSF 3 hr. UL System System H - Stair Wall 7'-9" (93 in.)
212CH25-18 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 7'-10" (94 in.)
212CH25-18 24 in. L/240 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 6'-6" (78 in.)
212CH25-18 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 6'-10" (82 in.)
212CH25-18 24 in. L/360 15 PSF 3 hr. UL System System H - Stair Wall 6'-10" (82 in.)
212CH25-18 24 in. L/360 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 7'-2" (86 in.)
212CH25-18 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 7'-2" (86 in.)
400CH20-34 24 in. L/120 5 PSF 3 hr. UL System System H - Stair Wall 19'-6" (234 in.)
400CH20-34 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 19'-6" (234 in.)
400CH20-34 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 19'-11" (239 in.)
400CH20-34 24 in. L/120 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 19'-11" (239 in.)
400CH20-34 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 20'-5" (245 in.)
400CH20-34 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 17'-6" (210 in.)
400CH20-34 24 in. L/240 5 PSF 3 hr. UL System System H - Stair Wall 17'-11" (215 in.)
400CH20-34 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 17'-11" (215 in.)
400CH20-34 24 in. L/240 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 18'-1" (217 in.)
400CH20-34 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 18'-1" (217 in.)
400CH20-34 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 15'-3" (183 in.)
400CH20-34 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 15'-10" (190 in.)
400CH20-34 24 in. L/360 5 PSF 3 hr. UL System System H - Stair Wall 15'-10" (190 in.)
400CH20-34 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 16'-2" (194 in.)
400CH20-34 24 in. L/360 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 16'-2" (194 in.)
400CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stair Wall 17'-1" (205 in.)
400CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 17'-1" (205 in.)
400CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 17'-4" (208 in.)
400CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 17'-4" (208 in.)
400CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 17'-10" (214 in.)
400CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 15'-3" (183 in.)
400CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 15'-8" (188 in.)
400CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stair Wall 15'-8" (188 in.)
400CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 13'-4" (160 in.)
400CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 14'-1" (169 in.)
400CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 14'-1" (169 in.)
400CH20-34 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 15'-6" (186 in.)
400CH20-34 24 in. L/120 10 PSF 3 hr. UL System System H - Stair Wall 15'-6" (186 in.)
400CH20-34 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/120 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 16'-2" (194 in.)
400CH20-34 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 14'-3" (171 in.)
400CH20-34 24 in. L/240 10 PSF 3 hr. UL System System H - Stair Wall 14'-3" (171 in.)
400CH20-34 24 in. L/240 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 14'-4" (172 in.)
400CH20-34 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 14'-4" (172 in.)
400CH20-34 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-1" (145 in.)
400CH20-34 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 12'-7" (151 in.)
400CH20-34 24 in. L/360 10 PSF 3 hr. UL System System H - Stair Wall 12'-7" (151 in.)
400CH20-34 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 12'-10" (154 in.)
400CH20-34 24 in. L/360 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-10" (154 in.)
400CH20-34 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 13'-4" (160 in.)
400CH20-34 24 in. L/120 15 PSF 3 hr. UL System System H - Stair Wall 13'-7" (163 in.)
400CH20-34 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 13'-7" (163 in.)
400CH20-34 24 in. L/120 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 13'-10" (166 in.)
400CH20-34 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 13'-10" (166 in.)
400CH20-34 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-1" (145 in.)
400CH20-34 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 12'-5" (149 in.)
400CH20-34 24 in. L/240 15 PSF 3 hr. UL System System H - Stair Wall 12'-5" (149 in.)
400CH20-34 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 12'-6" (150 in.)
400CH20-34 24 in. L/240 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-6" (150 in.)
400CH20-34 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-7" (127 in.)
400CH20-34 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 11' (132 in.)
400CH20-34 24 in. L/360 15 PSF 3 hr. UL System System H - Stair Wall 11' (132 in.)
400CH20-34 24 in. L/360 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-3" (135 in.)
400CH20-34 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 11'-3" (135 in.)
400CH25-18 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/120 5 PSF 3 hr. UL System System H - Stair Wall 16'-4" (196 in.)
400CH25-18 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 16'-4" (196 in.)
400CH25-18 24 in. L/120 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 17'-9" (213 in.)
400CH25-18 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 17'-9" (213 in.)
400CH25-18 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 14'-5" (173 in.)
400CH25-18 24 in. L/240 5 PSF 3 hr. UL System System H - Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/240 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 15'-7" (187 in.)
400CH25-18 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 15'-7" (187 in.)
400CH25-18 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-9" (153 in.)
400CH25-18 24 in. L/360 5 PSF 3 hr. UL System System H - Stair Wall 13'-4" (160 in.)
400CH25-18 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 13'-4" (160 in.)
400CH25-18 24 in. L/360 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 13'-11" (167 in.)
400CH25-18 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 13'-11" (167 in.)
400CH25-18 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-5" (149 in.)
400CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stair Wall 14'-3" (171 in.)
400CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 14'-3" (171 in.)
400CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 14'-6" (174 in.)
400CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 14'-6" (174 in.)
400CH25-18 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 12'-5" (149 in.)
400CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 13'-3" (159 in.)
400CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stair Wall 13'-3" (159 in.)
400CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 13'-8" (164 in.)
400CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 13'-8" (164 in.)
400CH25-18 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 11'-2" (134 in.)
400CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 11'-8" (140 in.)
400CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stair Wall 11'-8" (140 in.)
400CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-2" (146 in.)
400CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 12'-2" (146 in.)
400CH25-18 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
400CH25-18 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 12'-7" (151 in.)
400CH25-18 24 in. L/120 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-7" (151 in.)
400CH25-18 24 in. L/120 10 PSF 3 hr. UL System System H - Stair Wall 12'-11" (155 in.)
400CH25-18 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 12'-11" (155 in.)
400CH25-18 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
400CH25-18 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 12' (144 in.)
400CH25-18 24 in. L/240 10 PSF 3 hr. UL System System H - Stair Wall 12' (144 in.)
400CH25-18 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 12'-5" (149 in.)
400CH25-18 24 in. L/240 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 12'-5" (149 in.)
400CH25-18 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 10'-1" (121 in.)
400CH25-18 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/360 10 PSF 3 hr. UL System System H - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 11'-1" (133 in.)
400CH25-18 24 in. L/360 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 11'-1" (133 in.)
400CH25-18 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/120 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/120 15 PSF 3 hr. UL System System H - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/240 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/240 15 PSF 3 hr. UL System System H - Stair Wall 10'-6" (126 in.)
400CH25-18 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 10'-6" (126 in.)
400CH25-18 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 9'-3" (111 in.)
400CH25-18 24 in. L/360 15 PSF 3 hr. UL System System H - Stair Wall 9'-3" (111 in.)
400CH25-18 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 9'-8" (116 in.)
400CH25-18 24 in. L/360 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 9'-8" (116 in.)
600CH20-34 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 25'-4" (304 in.)
600CH20-34 24 in. L/120 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 25'-4" (304 in.)
600CH20-34 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 26'-3" (315 in.)
600CH20-34 24 in. L/120 5 PSF 3 hr. UL System System H - Stair Wall 28' (336 in.)
600CH20-34 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 28' (336 in.)
600CH20-34 24 in. L/240 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 24' (288 in.)
600CH20-34 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 24'-10" (298 in.)
600CH20-34 24 in. L/240 5 PSF 3 hr. UL System System H - Stair Wall 24'-10" (298 in.)
600CH20-34 24 in. L/360 5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 20' (240 in.)
600CH20-34 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 20' (240 in.)
600CH20-34 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 21'-1" (253 in.)
600CH20-34 24 in. L/360 5 PSF 3 hr. UL System System H - Stair Wall 21'-11" (263 in.)
600CH20-34 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 21'-11" (263 in.)
600CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 21'-5" (257 in.)
600CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 22'-2" (266 in.)
600CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 22'-2" (266 in.)
600CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 25'-1" (301 in.)
600CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stair Wall 25'-1" (301 in.)
600CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 19' (228 in.)
600CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 19' (228 in.)
600CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 21' (252 in.)
600CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 17'-6" (210 in.)
600CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 17'-6" (210 in.)
600CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 18'-5" (221 in.)
600CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stair Wall 19'-2" (230 in.)
600CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 19'-2" (230 in.)
600CH20-34 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 18'-7" (223 in.)
600CH20-34 24 in. L/120 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 19'-8" (236 in.)
600CH20-34 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 19'-8" (236 in.)
600CH20-34 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/120 10 PSF 3 hr. UL System System H - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 17'-4" (208 in.)
600CH20-34 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 17'-4" (208 in.)
600CH20-34 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 18'-7" (223 in.)
600CH20-34 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 19'-9" (237 in.)
600CH20-34 24 in. L/240 10 PSF 3 hr. UL System System H - Stair Wall 19'-9" (237 in.)
600CH20-34 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 15'-11" (191 in.)
600CH20-34 24 in. L/360 10 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 15'-11" (191 in.)
600CH20-34 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 16'-9" (201 in.)
600CH20-34 24 in. L/360 10 PSF 3 hr. UL System System H - Stair Wall 17'-5" (209 in.)
600CH20-34 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 17'-5" (209 in.)
600CH20-34 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 16'-1" (193 in.)
600CH20-34 24 in. L/120 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 16'-1" (193 in.)
600CH20-34 24 in. L/120 15 PSF 3 hr. UL System System H - Stair Wall 17'-9" (213 in.)
600CH20-34 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 17'-9" (213 in.)
600CH20-34 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 15'-1" (181 in.)
600CH20-34 24 in. L/240 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 15'-1" (181 in.)
600CH20-34 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/240 15 PSF 3 hr. UL System System H - Stair Wall 17'-3" (207 in.)
600CH20-34 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 17'-3" (207 in.)
600CH20-34 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 13'-11" (167 in.)
600CH20-34 24 in. L/360 15 PSF 2 hr. UL System System B,D,F,I - Shaft Wall 13'-11" (167 in.)
600CH20-34 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 14'-8" (176 in.)
600CH20-34 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/360 15 PSF 3 hr. UL System System H - Stair Wall 15'-2" (182 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System System B, D, F - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 3 hr. UL System System G - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System System C - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 4 hr. UL System System I - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 3 hr. UL System System H - Stairwall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System System E - Stair Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System System E - Stair Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System System B, D, F - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 3 hr. UL System System H - Stairwall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System System C - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 4 hr. UL System System I - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 3 hr. UL System System G - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System System E - Stair Wall 25'-3" (303 in.)
600ES20 e 24 in. L/360 5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 25'-3" (303 in.)
600ES20 e 24 in. L/360 5 PSF 3 hr. UL System System G - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 4 hr. UL System System I - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System System C - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 3 hr. UL System System H - Stairwall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System System B, D, F - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System System B, D, F - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System System C - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 3 hr. UL System System G - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System System E - Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 4 hr. UL System System I - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 3 hr. UL System System H - Stairwall 28' d (336 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System System C - Shaft Wall 24'-9" (297 in.)
600ES20 e 24 in. L/240 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 24'-9" (297 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System System E - Stair Wall 26' d (312 in.)
600ES20 e 24 in. L/240 7.5 PSF 3 hr. UL System System H - Stairwall 26' d (312 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System System B, D, F - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/240 7.5 PSF 4 hr. UL System System I - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/240 7.5 PSF 3 hr. UL System System G - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System System C - Shaft Wall 21'-9" (261 in.)
600ES20 e 24 in. L/360 7.5 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 21'-9" (261 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System System E - Stair Wall 22'-9" (273 in.)
600ES20 e 24 in. L/360 7.5 PSF 3 hr. UL System System H - Stairwall 22'-9" (273 in.)
600ES20 e 24 in. L/360 7.5 PSF 4 hr. UL System System I - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System System B, D, F - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/360 7.5 PSF 3 hr. UL System System G - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System System B, D, F - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 3 hr. UL System System G - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 3 hr. UL System System H - Stairwall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System System C - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 4 hr. UL System System I - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System System E - Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System System C - Shaft Wall 22'-6" d (270 in.)
600ES20 e 24 in. L/240 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 22'-6" d (270 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System System E - Stair Wall 23'-6" d (282 in.)
600ES20 e 24 in. L/240 10 PSF 3 hr. UL System System H - Stairwall 23'-6" d (282 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System System B, D, F - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/240 10 PSF 4 hr. UL System System I - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/240 10 PSF 3 hr. UL System System G - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/360 10 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 19'-6" (234 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System System C - Shaft Wall 19'-6" (234 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System System E - Stair Wall 20'-6" (246 in.)
600ES20 e 24 in. L/360 10 PSF 3 hr. UL System System H - Stairwall 20'-6" (246 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System System B, D, F - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/360 10 PSF 4 hr. UL System System I - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/360 10 PSF 3 hr. UL System System G - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/120 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 3 hr. UL System System H - Stairwall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System System C - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System System E - Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 3 hr. UL System System G - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 4 hr. UL System System I - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System System B, D, F - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 3 hr. UL System System G - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System System C - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 3 hr. UL System System H - Stairwall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System System B, D, F - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System System E - Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 4 hr. UL System System I - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/360 15 PSF 1 hr. UL System System A - Shaft Wall/ Stair Wall 17'-3" d (207 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System System C - Shaft Wall 17'-3" d (207 in.)
600ES20 e 24 in. L/360 15 PSF 3 hr. UL System System H - Stairwall 18' d (216 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System System E - Stair Wall 18' d (216 in.)
600ES20 e 24 in. L/360 15 PSF 3 hr. UL System System G - Shaft Wall 18'-3" d (219 in.)
600ES20 e 24 in. L/360 15 PSF 4 hr. UL System System I - Shaft Wall 18'-3" d (219 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System System B, D, F - Shaft Wall 18'-3" d (219 in.)
Footnotes: