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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 UL U415/ULC W452
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 A - Shaft Wall/ Stair Wall 13'-5" (161 in.)
212CH20-34 24 in. L/120 5 PSF 3 hr. UL System H - Stair Wall 14'-2" (170 in.)
212CH20-34 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 14'-2" (170 in.)
212CH20-34 24 in. L/120 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 14'-3" (171 in.)
212CH20-34 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 14'-3" (171 in.)
212CH20-34 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-3" (147 in.)
212CH20-34 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 12'-10" (154 in.)
212CH20-34 24 in. L/240 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-10" (154 in.)
212CH20-34 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 13' (156 in.)
212CH20-34 24 in. L/240 5 PSF 3 hr. UL System H - Stair Wall 13' (156 in.)
212CH20-34 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-10" (130 in.)
212CH20-34 24 in. L/360 5 PSF 3 hr. UL System H - Stair Wall 11'-6" (138 in.)
212CH20-34 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 11'-6" (138 in.)
212CH20-34 24 in. L/360 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-7" (139 in.)
212CH20-34 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 11'-7" (139 in.)
212CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 11'-8" (140 in.)
212CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System H - Stair Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 12'-5" (149 in.)
212CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-5" (149 in.)
212CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
212CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 11'-3" (135 in.)
212CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-3" (135 in.)
212CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 11'-5" (137 in.)
212CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System H - Stair Wall 11'-5" (137 in.)
212CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-6" (114 in.)
212CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System H - Stair Wall 10' (120 in.)
212CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 10' (120 in.)
212CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-1" (121 in.)
212CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 10'-1" (121 in.)
212CH20-34 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-8" (128 in.)
212CH20-34 24 in. L/120 10 PSF 3 hr. UL System H - Stair Wall 11'-3" (135 in.)
212CH20-34 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 11'-3" (135 in.)
212CH20-34 24 in. L/120 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-4" (136 in.)
212CH20-34 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 11'-4" (136 in.)
212CH20-34 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-9" (117 in.)
212CH20-34 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 10'-2" (122 in.)
212CH20-34 24 in. L/240 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-2" (122 in.)
212CH20-34 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 10'-4" (124 in.)
212CH20-34 24 in. L/240 10 PSF 3 hr. UL System H - Stair Wall 10'-4" (124 in.)
212CH20-34 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-7" (103 in.)
212CH20-34 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 10 PSF 3 hr. UL System H - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-2" (110 in.)
212CH20-34 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 9'-2" (110 in.)
212CH20-34 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-3" (111 in.)
212CH20-34 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 9'-10" (118 in.)
212CH20-34 24 in. L/120 15 PSF 3 hr. UL System H - Stair Wall 9'-10" (118 in.)
212CH20-34 24 in. L/120 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-11" (119 in.)
212CH20-34 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 9'-11" (119 in.)
212CH20-34 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-6" (102 in.)
212CH20-34 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 8'-11" (107 in.)
212CH20-34 24 in. L/240 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 8'-11" (107 in.)
212CH20-34 24 in. L/240 15 PSF 3 hr. UL System H - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 9'-1" (109 in.)
212CH20-34 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 7'-6" (90 in.)
212CH20-34 24 in. L/360 15 PSF 3 hr. UL System H - Stair Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 8' (96 in.)
212CH20-34 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 8' (96 in.)
212CH25-18 24 in. L/120 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 11'-5" (137 in.)
212CH25-18 24 in. L/120 5 PSF 3 hr. UL System H - Stair Wall 12'-2" (146 in.)
212CH25-18 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 12'-2" (146 in.)
212CH25-18 24 in. L/120 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-4" (148 in.)
212CH25-18 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 12'-4" (148 in.)
212CH25-18 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-7" (127 in.)
212CH25-18 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 11'-2" (134 in.)
212CH25-18 24 in. L/240 5 PSF 3 hr. UL System H - Stair Wall 11'-2" (134 in.)
212CH25-18 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 11'-4" (136 in.)
212CH25-18 24 in. L/240 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-4" (136 in.)
212CH25-18 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-4" (112 in.)
212CH25-18 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 9'-10" (118 in.)
212CH25-18 24 in. L/360 5 PSF 3 hr. UL System H - Stair Wall 9'-10" (118 in.)
212CH25-18 24 in. L/360 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-4" (124 in.)
212CH25-18 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 10'-4" (124 in.)
212CH25-18 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10' (120 in.)
212CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 10'-8" (128 in.)
212CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System H - Stair Wall 10'-8" (128 in.)
212CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-10" (130 in.)
212CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 10'-10" (130 in.)
212CH25-18 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-3" (111 in.)
212CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 9'-9" (117 in.)
212CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System H - Stair Wall 9'-9" (117 in.)
212CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-11" (119 in.)
212CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 9'-11" (119 in.)
212CH25-18 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-2" (98 in.)
212CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System H - Stair Wall 8'-7" (103 in.)
212CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 8'-7" (103 in.)
212CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 9'-1" (109 in.)
212CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-1" (109 in.)
212CH25-18 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 9'-1" (109 in.)
212CH25-18 24 in. L/120 10 PSF 3 hr. UL System H - Stair Wall 9'-8" (116 in.)
212CH25-18 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 9'-8" (116 in.)
212CH25-18 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 9'-10" (118 in.)
212CH25-18 24 in. L/120 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-10" (118 in.)
212CH25-18 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-4" (100 in.)
212CH25-18 24 in. L/240 10 PSF 3 hr. UL System H - Stair Wall 8'-10" (106 in.)
212CH25-18 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 8'-10" (106 in.)
212CH25-18 24 in. L/240 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9' (108 in.)
212CH25-18 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 9' (108 in.)
212CH25-18 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 7'-5" (89 in.)
212CH25-18 24 in. L/360 10 PSF 3 hr. UL System H - Stair Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 8'-3" (99 in.)
212CH25-18 24 in. L/360 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 8'-3" (99 in.)
212CH25-18 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 7'-11" (95 in.)
212CH25-18 24 in. L/120 15 PSF 3 hr. UL System H - Stair Wall 8'-5" (101 in.)
212CH25-18 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 8'-5" (101 in.)
212CH25-18 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 8'-7" (103 in.)
212CH25-18 24 in. L/120 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 8'-7" (103 in.)
212CH25-18 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 7'-4" (88 in.)
212CH25-18 24 in. L/240 15 PSF 3 hr. UL System H - Stair Wall 7'-9" (93 in.)
212CH25-18 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 7'-9" (93 in.)
212CH25-18 24 in. L/240 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 7'-10" (94 in.)
212CH25-18 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 7'-10" (94 in.)
212CH25-18 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 6'-6" (78 in.)
212CH25-18 24 in. L/360 15 PSF 3 hr. UL System H - Stair Wall 6'-10" (82 in.)
212CH25-18 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 6'-10" (82 in.)
212CH25-18 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 7'-2" (86 in.)
212CH25-18 24 in. L/360 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 7'-2" (86 in.)
400CH20-34 24 in. L/120 5 PSF 3 hr. UL System H - Stair Wall 19'-6" (234 in.)
400CH20-34 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 19'-6" (234 in.)
400CH20-34 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 19'-11" (239 in.)
400CH20-34 24 in. L/120 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 19'-11" (239 in.)
400CH20-34 24 in. L/120 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 20'-5" (245 in.)
400CH20-34 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 17'-6" (210 in.)
400CH20-34 24 in. L/240 5 PSF 3 hr. UL System H - Stair Wall 17'-11" (215 in.)
400CH20-34 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 17'-11" (215 in.)
400CH20-34 24 in. L/240 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 18'-1" (217 in.)
400CH20-34 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 18'-1" (217 in.)
400CH20-34 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 15'-3" (183 in.)
400CH20-34 24 in. L/360 5 PSF 3 hr. UL System H - Stair Wall 15'-10" (190 in.)
400CH20-34 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 15'-10" (190 in.)
400CH20-34 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 16'-2" (194 in.)
400CH20-34 24 in. L/360 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 16'-2" (194 in.)
400CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 17'-1" (205 in.)
400CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System H - Stair Wall 17'-1" (205 in.)
400CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 17'-4" (208 in.)
400CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 17'-4" (208 in.)
400CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 17'-10" (214 in.)
400CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 15'-3" (183 in.)
400CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System H - Stair Wall 15'-8" (188 in.)
400CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 15'-8" (188 in.)
400CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 13'-4" (160 in.)
400CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System H - Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 14'-1" (169 in.)
400CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 14'-1" (169 in.)
400CH20-34 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 15'-6" (186 in.)
400CH20-34 24 in. L/120 10 PSF 3 hr. UL System H - Stair Wall 15'-6" (186 in.)
400CH20-34 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/120 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 15'-9" (189 in.)
400CH20-34 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 16'-2" (194 in.)
400CH20-34 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 13'-10" (166 in.)
400CH20-34 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 14'-3" (171 in.)
400CH20-34 24 in. L/240 10 PSF 3 hr. UL System H - Stair Wall 14'-3" (171 in.)
400CH20-34 24 in. L/240 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 14'-4" (172 in.)
400CH20-34 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 14'-4" (172 in.)
400CH20-34 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-1" (145 in.)
400CH20-34 24 in. L/360 10 PSF 3 hr. UL System H - Stair Wall 12'-7" (151 in.)
400CH20-34 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 12'-7" (151 in.)
400CH20-34 24 in. L/360 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-10" (154 in.)
400CH20-34 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 12'-10" (154 in.)
400CH20-34 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 13'-4" (160 in.)
400CH20-34 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 13'-7" (163 in.)
400CH20-34 24 in. L/120 15 PSF 3 hr. UL System H - Stair Wall 13'-7" (163 in.)
400CH20-34 24 in. L/120 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 13'-10" (166 in.)
400CH20-34 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 13'-10" (166 in.)
400CH20-34 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-1" (145 in.)
400CH20-34 24 in. L/240 15 PSF 3 hr. UL System H - Stair Wall 12'-5" (149 in.)
400CH20-34 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 12'-5" (149 in.)
400CH20-34 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 12'-6" (150 in.)
400CH20-34 24 in. L/240 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-6" (150 in.)
400CH20-34 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-7" (127 in.)
400CH20-34 24 in. L/360 15 PSF 3 hr. UL System H - Stair Wall 11' (132 in.)
400CH20-34 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 11' (132 in.)
400CH20-34 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 11'-3" (135 in.)
400CH20-34 24 in. L/360 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-3" (135 in.)
400CH25-18 24 in. L/120 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/120 5 PSF 3 hr. UL System H - Stair Wall 16'-4" (196 in.)
400CH25-18 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 16'-4" (196 in.)
400CH25-18 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 17'-9" (213 in.)
400CH25-18 24 in. L/120 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 17'-9" (213 in.)
400CH25-18 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 14'-5" (173 in.)
400CH25-18 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/240 5 PSF 3 hr. UL System H - Stair Wall 15'-2" (182 in.)
400CH25-18 24 in. L/240 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 15'-7" (187 in.)
400CH25-18 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 15'-7" (187 in.)
400CH25-18 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-9" (153 in.)
400CH25-18 24 in. L/360 5 PSF 3 hr. UL System H - Stair Wall 13'-4" (160 in.)
400CH25-18 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 13'-4" (160 in.)
400CH25-18 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 13'-11" (167 in.)
400CH25-18 24 in. L/360 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 13'-11" (167 in.)
400CH25-18 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-5" (149 in.)
400CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 14'-3" (171 in.)
400CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System H - Stair Wall 14'-3" (171 in.)
400CH25-18 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 14'-6" (174 in.)
400CH25-18 24 in. L/120 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 14'-6" (174 in.)
400CH25-18 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 12'-5" (149 in.)
400CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 13'-3" (159 in.)
400CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System H - Stair Wall 13'-3" (159 in.)
400CH25-18 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 13'-8" (164 in.)
400CH25-18 24 in. L/240 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 13'-8" (164 in.)
400CH25-18 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 11'-2" (134 in.)
400CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 11'-8" (140 in.)
400CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System H - Stair Wall 11'-8" (140 in.)
400CH25-18 24 in. L/360 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-2" (146 in.)
400CH25-18 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 12'-2" (146 in.)
400CH25-18 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
400CH25-18 24 in. L/120 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-7" (151 in.)
400CH25-18 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 12'-7" (151 in.)
400CH25-18 24 in. L/120 10 PSF 3 hr. UL System H - Stair Wall 12'-11" (155 in.)
400CH25-18 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 12'-11" (155 in.)
400CH25-18 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-9" (129 in.)
400CH25-18 24 in. L/240 10 PSF 3 hr. UL System H - Stair Wall 12' (144 in.)
400CH25-18 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 12' (144 in.)
400CH25-18 24 in. L/240 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 12'-5" (149 in.)
400CH25-18 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 12'-5" (149 in.)
400CH25-18 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 10'-1" (121 in.)
400CH25-18 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/360 10 PSF 3 hr. UL System H - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 11'-1" (133 in.)
400CH25-18 24 in. L/360 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 11'-1" (133 in.)
400CH25-18 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/120 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/120 15 PSF 3 hr. UL System H - Stair Wall 10'-7" (127 in.)
400CH25-18 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/240 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 10'-3" (123 in.)
400CH25-18 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 10'-6" (126 in.)
400CH25-18 24 in. L/240 15 PSF 3 hr. UL System H - Stair Wall 10'-6" (126 in.)
400CH25-18 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 8'-9" (105 in.)
400CH25-18 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 9'-3" (111 in.)
400CH25-18 24 in. L/360 15 PSF 3 hr. UL System H - Stair Wall 9'-3" (111 in.)
400CH25-18 24 in. L/360 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 9'-8" (116 in.)
400CH25-18 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 9'-8" (116 in.)
600CH20-34 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 25'-4" (304 in.)
600CH20-34 24 in. L/120 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 25'-4" (304 in.)
600CH20-34 24 in. L/120 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 26'-3" (315 in.)
600CH20-34 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 28' (336 in.)
600CH20-34 24 in. L/120 5 PSF 3 hr. UL System H - Stair Wall 28' (336 in.)
600CH20-34 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 24' (288 in.)
600CH20-34 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 24'-10" (298 in.)
600CH20-34 24 in. L/240 5 PSF 3 hr. UL System H - Stair Wall 24'-10" (298 in.)
600CH20-34 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 20' (240 in.)
600CH20-34 24 in. L/360 5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 20' (240 in.)
600CH20-34 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 21'-1" (253 in.)
600CH20-34 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 21'-11" (263 in.)
600CH20-34 24 in. L/360 5 PSF 3 hr. UL System H - Stair Wall 21'-11" (263 in.)
600CH20-34 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 21'-5" (257 in.)
600CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 22'-2" (266 in.)
600CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 22'-2" (266 in.)
600CH20-34 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 25'-1" (301 in.)
600CH20-34 24 in. L/120 7.5 PSF 3 hr. UL System H - Stair Wall 25'-1" (301 in.)
600CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 19' (228 in.)
600CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 19' (228 in.)
600CH20-34 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 21' (252 in.)
600CH20-34 24 in. L/240 7.5 PSF 3 hr. UL System H - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 17'-6" (210 in.)
600CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System B,D,F,I - Shaft Wall 17'-6" (210 in.)
600CH20-34 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 18'-5" (221 in.)
600CH20-34 24 in. L/360 7.5 PSF 3 hr. UL System H - Stair Wall 19'-2" (230 in.)
600CH20-34 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 19'-2" (230 in.)
600CH20-34 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 18'-7" (223 in.)
600CH20-34 24 in. L/120 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 19'-8" (236 in.)
600CH20-34 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 19'-8" (236 in.)
600CH20-34 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/120 10 PSF 3 hr. UL System H - Stair Wall 21'-9" (261 in.)
600CH20-34 24 in. L/240 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 17'-4" (208 in.)
600CH20-34 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 17'-4" (208 in.)
600CH20-34 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 18'-7" (223 in.)
600CH20-34 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 19'-9" (237 in.)
600CH20-34 24 in. L/240 10 PSF 3 hr. UL System H - Stair Wall 19'-9" (237 in.)
600CH20-34 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 15'-11" (191 in.)
600CH20-34 24 in. L/360 10 PSF 2 hr. UL System B,D,F,I - Shaft Wall 15'-11" (191 in.)
600CH20-34 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 16'-9" (201 in.)
600CH20-34 24 in. L/360 10 PSF 3 hr. UL System H - Stair Wall 17'-5" (209 in.)
600CH20-34 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 17'-5" (209 in.)
600CH20-34 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 16'-1" (193 in.)
600CH20-34 24 in. L/120 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 16'-1" (193 in.)
600CH20-34 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 17'-9" (213 in.)
600CH20-34 24 in. L/120 15 PSF 3 hr. UL System H - Stair Wall 17'-9" (213 in.)
600CH20-34 24 in. L/240 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 15'-1" (181 in.)
600CH20-34 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 15'-1" (181 in.)
600CH20-34 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/240 15 PSF 3 hr. UL System H - Stair Wall 17'-3" (207 in.)
600CH20-34 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 17'-3" (207 in.)
600CH20-34 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 13'-11" (167 in.)
600CH20-34 24 in. L/360 15 PSF 2 hr. UL System B,D,F,I - Shaft Wall 13'-11" (167 in.)
600CH20-34 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 14'-8" (176 in.)
600CH20-34 24 in. L/360 15 PSF 3 hr. UL System H - Stair Wall 15'-2" (182 in.)
600CH20-34 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 15'-2" (182 in.)
600ES20 e 24 in. L/120 5 PSF 3 hr. UL System G - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System B, D, F - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System E - Stair Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 4 hr. UL System I - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 3 hr. UL System H - Stairwall 28' (336 in.)
600ES20 e 24 in. L/120 5 PSF 2 hr. UL System C - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System C - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System B, D, F - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 3 hr. UL System G - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 2 hr. UL System E - Stair Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 3 hr. UL System H - Stairwall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 28' (336 in.)
600ES20 e 24 in. L/240 5 PSF 4 hr. UL System I - Shaft Wall 28' (336 in.)
600ES20 e 24 in. L/360 5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 25'-3" (303 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System E - Stair Wall 25'-3" (303 in.)
600ES20 e 24 in. L/360 5 PSF 3 hr. UL System G - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 4 hr. UL System I - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System C - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 3 hr. UL System H - Stairwall 26'-3" (315 in.)
600ES20 e 24 in. L/360 5 PSF 2 hr. UL System B, D, F - Shaft Wall 26'-3" (315 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System B, D, F - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 3 hr. UL System H - Stairwall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 3 hr. UL System G - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System E - Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 2 hr. UL System C - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 7.5 PSF 4 hr. UL System I - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/240 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 24'-9" (297 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System C - Shaft Wall 24'-9" (297 in.)
600ES20 e 24 in. L/240 7.5 PSF 3 hr. UL System H - Stairwall 26' d (312 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System E - Stair Wall 26' d (312 in.)
600ES20 e 24 in. L/240 7.5 PSF 3 hr. UL System G - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/240 7.5 PSF 2 hr. UL System B, D, F - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/240 7.5 PSF 4 hr. UL System I - Shaft Wall 26'-3" d (315 in.)
600ES20 e 24 in. L/360 7.5 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 21'-9" (261 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System C - Shaft Wall 21'-9" (261 in.)
600ES20 e 24 in. L/360 7.5 PSF 3 hr. UL System H - Stairwall 22'-9" (273 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System E - Stair Wall 22'-9" (273 in.)
600ES20 e 24 in. L/360 7.5 PSF 4 hr. UL System I - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/360 7.5 PSF 2 hr. UL System B, D, F - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/360 7.5 PSF 3 hr. UL System G - Shaft Wall 23' (276 in.)
600ES20 e 24 in. L/120 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 4 hr. UL System I - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System C - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 3 hr. UL System G - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 3 hr. UL System H - Stairwall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System B, D, F - Shaft Wall 28' d (336 in.)
600ES20 e 24 in. L/120 10 PSF 2 hr. UL System E - Stair Wall 28' d (336 in.)
600ES20 e 24 in. L/240 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 22'-6" d (270 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System C - Shaft Wall 22'-6" d (270 in.)
600ES20 e 24 in. L/240 10 PSF 3 hr. UL System H - Stairwall 23'-6" d (282 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System E - Stair Wall 23'-6" d (282 in.)
600ES20 e 24 in. L/240 10 PSF 4 hr. UL System I - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/240 10 PSF 2 hr. UL System B, D, F - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/240 10 PSF 3 hr. UL System G - Shaft Wall 24' d (288 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System C - Shaft Wall 19'-6" (234 in.)
600ES20 e 24 in. L/360 10 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 19'-6" (234 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System E - Stair Wall 20'-6" (246 in.)
600ES20 e 24 in. L/360 10 PSF 3 hr. UL System H - Stairwall 20'-6" (246 in.)
600ES20 e 24 in. L/360 10 PSF 2 hr. UL System B, D, F - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/360 10 PSF 3 hr. UL System G - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/360 10 PSF 4 hr. UL System I - Shaft Wall 21' d (252 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System E - Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 4 hr. UL System I - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System C - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 2 hr. UL System B, D, F - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 3 hr. UL System G - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/120 15 PSF 3 hr. UL System H - Stairwall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System B, D, F - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System E - Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 3 hr. UL System H - Stairwall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 3 hr. UL System G - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 2 hr. UL System C - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 4 hr. UL System I - Shaft Wall 20' d (240 in.)
600ES20 e 24 in. L/240 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 20' d (240 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System C - Shaft Wall 17'-3" d (207 in.)
600ES20 e 24 in. L/360 15 PSF 1 hr. UL System A - Shaft Wall/ Stair Wall 17'-3" d (207 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System E - Stair Wall 18' d (216 in.)
600ES20 e 24 in. L/360 15 PSF 3 hr. UL System H - Stairwall 18' d (216 in.)
600ES20 e 24 in. L/360 15 PSF 2 hr. UL System B, D, F - Shaft Wall 18'-3" d (219 in.)
600ES20 e 24 in. L/360 15 PSF 3 hr. UL System G - Shaft Wall 18'-3" d (219 in.)
600ES20 e 24 in. L/360 15 PSF 4 hr. UL System I - Shaft Wall 18'-3" d (219 in.)
Footnotes: