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UL Online Certifications Directory OCD Home Quick Guide Contact Us UL.com BXUV.D972 Fire Resistance Ratings - ANSI/UL 263 Page Bottom Fire Resistance Ratings - ANSI/UL 263 See General Information for Fire Resistance Ratings - ANSI/UL 263 Design No. D972 September 04, 2008 Restrained Assembly Ratings - 1, 1-1/2, 2 and 3 Hr. (See Items 2, 5 and 7) Unrestrained Assembly Ratings - 1, 1-1/2, 2, 2-1/2 and 3 Hr. (See Items 2, 5 and 7) Unrestrained Beam Ratings - 1, 1-1/2, 2, 2-1/2 and 3 Hr. (See Items 2, 5 and 7) Load Restricted for Canadian Applications See Guide BXUV7

1. Steel Beams Wide flange steel beams with the minimum sizes shown in Item 7. Beams shall be free of dirt, loose scale and oil. Beams shall be primed with 2 mils dry film thickness of alkyd based metal primer. 2. Normal Weight or Lightweight Concrete Normal weight concrete, carbonate or siliceous aggregate, min 3000 psi compressive strength, vibrated. Lightweight concrete, expanded shale, clay or slate aggregate by rotary-kiln method, min 3000 psi compressive strength, vibrated, 4 to 7 percent entrained air. Min thickness and concrete unit weight shown in the table below: Restrained Assembly Rating Hr Concrete (Type) Concrete Unit Weight pcf Concrete Thkns In. 1 Normal Weight 147-153 3-1/2 1-1/2 Normal Weight 147-153 4 2 Normal Weight 147-153 4-1/2 3 Normal Weight 147-153 5-1/4 3/4 or 1 (See Item 6) Lightweight 107-113 2-1/2 1 Lightweight 107-120 2-5/8 1-1/2 Lightweight 107-113 3

2 Lightweight 107-113 3-1/4 2 Lightweight 107-116 3-1/4* 2 Lightweight 114-120 3-1/2 3 Lightweight 107-113 4-3/16 3 Lightweight 114-120 4-7/16 *For use with 2 or 3 in. steel floor and form units only. 3. Shear Connectors (Optional) Studs, 3/4 in. diam (min 1/2 diam for use with steel joists) by 4-1/2 in. long, headed type or equivalent per AISC specification. Welded to the top flange of the beam, through the deck. 4. Welded Wire Fabric 6x6 W1.4xW1.4. 5. Steel Floor and Form Units* Composite 1-1/2, 2, or 3 in. deep galv Units. Fluted units may be uncoated. Min gauges 22 MSG for fluted and 20/20 MSG for cellular. Any combination of fluted and cellular units may be used. Spacing of welds attaching units to supports shall be 12 in. OC max unless specified otherwise, adjacent units button-punched or welded together at side joints and, unless specified otherwise for specific unit types, spacing of all side joint fastening systems shall not exceed 36 in. OC. CONSOLIDATED SYSTEMS INC 24 in. wide Types CFD-2, -3; 24, 30 or 36 in. wide Type CFD-1.5;12, 24 or 36 in. wide Types Mac-Lok 2, Mac-Lok 3; 12 in. wide Mac-Way Cellular Types 2-633MTWA, 3-633MTWA, 2-633MTWV, 3-633MTWV. For the 1, 1-1/2, 2h Restrained Assembly Ratings and the 1h Unrestrained Assembly and Beam Rating, 12 in. wide, Type 1.5-633 MTWA may be used. Types CFD-1.5, CFD-2, CFD-3, Mac- Lok 2, Mac-Lok 3 may be phos/ptd. Two rows of steel studs with discs (Item 7) shall be welded along the sides of the Types 2-633MTWV, 3-633MTWV cellular units a max of 22 in. OC. NEW MILLENNIUM BUILDING SYSTEMS L L C Type 1.5CD, 2.0CD or 3.0CD VULCRAFT, DIV OF NUCOR CORP 24, 30 or 36 in. wide Type 1.5VLI, 1.5VLP;24 or 36 in. wide Types 2VLI, 3VLI, 2VLP,

3VLP. Types 1.5VLI, 2VLI, 3VLI units may be phos/ptd; 24 or 36 in. wide Types 2VLJ, 3VLJ units (+) may be used for max 2 hr. Restrained Assembly. (+)Side joints of Type 2VLJ or 3VLJ units may be fastened together with No. 8-3/4 in. long self-drilling Tek screws driven diagonally from the top side through the joint of the units at 36 in. OC max. The Unrestrained Assembly Rating is equal to the Unrestrained Beam Rating for a max of 3 Hr. and is limited to the following units and limitations: (a) 1-1/2 in. deep, 24 in. wide, 22 MSG or thicker fluted with clear spans not more than 7 ft 8 in. (b) 1-1/2 in. deep, 24 in. wide, 20 MSG or thicker fluted with clear spans not more than 8 ft 8 in. (c) 1-1/2 in. deep, 24 in. wide, 16 MSG or thicker fluted and 18/18 MDG or thicker cellular with clear spans not more than 9 ft 11 in. (d) 3 in. deep, 36 in. wide, 18 MSG or thicker fluted and 24 in. wide, 20/18 MSG ot thicker cellular with clear spans not more than 13 ft 2 in. 6. Joint Cover (Not Shown) 2 in. wide pressure sensitive cloth tape. 7. Mastic Coating* Coating spray applied directly from containers to desired thickness. See table for appropriate final dry thickness. Flutes above beam to be completely filled with mineral wool insulation having a minimum density below of 6 lbs/cu ft or the top flange of the beam shall be protected with the same thickness of coating as required on the beam. The following thicknesses apply for fluted and cellular floor units topped with lightweight or normal weight concrete. Thicknesses include the 2 mils of primer:

Restrained Assembly Rating (Hr) Max 2 Max 3 Unrestrained Beam Rating (Hr) 1 1-1/2 2 1-1/2 2 2-1/2 Steel Size W/D Thickness, Mils Thickness, Mils W6x16 0.684 66.4 66.4 144.8 NR NR NR W12x30 0.699 66.0 66.0 143.5 NR NR NR W16x36 0.702 65.9 65.9 143.2 NR NR NR W8x24 0.704 65.8 65.8 143.0 NR NR NR W10x26 0.708 65.7 65.7 142.7 NR NR NR W14x34 0.725 65.2 65.2 141.1 NR NR NR W21x44 0.746 64.6 64.6 139.2 NR NR NR W21x48 0.750 64.5 64.5 138.8 NR NR NR W18x40 0.768 63.9 63.9 137.2 NR NR NR W5x19 0.776 63.7 63.7 136.5 NR NR NR W16x40 0.780 63.6 63.6 136.1 NR NR NR W10x33 0.786 63.4 63.4 135.6 NR NR NR W8x31 0.803 62.9 62.9 134.0 NR NR NR W10x30 0.809 62.7 62.7 133.5 NR NR NR W14x38 0.809 62.7 62.7 133.5 NR NR NR W12x35 0.810 62.7 62.7 133.4 NR NR NR W8x28 0.819 62.4 62.4 132.6 NR NR NR W24x55 0.828 62.2 62.2 131.8 NR NR NR W21x50 0.838 61.9 61.9 130.9 NR NR NR W6x25 0.839 61.8 61.8 130.8 NR NR NR W21x55 0.854 61.4 61.4 129.4 NR NR NR W12x40 0.860 61.2 61.2 128.9 NR NR NR W16x45 0.870 60.9 60.9 127.9 NR NR NR

W14x43 0.874 60.8 60.8 127.6 NR NR NR W18x46 0.878 60.7 60.7 127.2 NR NR NR W18x50 0.880 60.6 60.6 127.0 NR NR NR W8x35 0.907 59.8 59.8 124.6 NR NR NR W10x39 0.929 59.2 59.2 122.6 NR NR NR W24x62 0.934 59.0 59.0 122.1 NR NR NR W24x68 0.942 58.8 58.8 121.4 NR NR NR W21x57 0.952 58.5 58.5 120.5 NR NR NR W21x62 0.952 58.5 58.5 120.5 NR NR NR W16x50 0.962 58.2 58.2 119.6 NR NR NR W18x55 0.963 58.2 58.2 119.5 NR NR NR W14x48 0.970 58.0 58.0 118.9 NR NR NR W12x45 0.974 57.8 57.8 118.5 NR NR NR W10x49 1.010 56.8 56.8 115.2 NR NR NR W12x53 1.020 56.5 56.5 114.3 NR NR NR W30x90 1.020 56.5 56.5 114.3 NR NR NR W8x40 1.030 56.2 56.2 113.4 NR NR NR W27x84 1.030 56.2 56.2 113.4 NR NR NR W18x60 1.040 55.9 55.9 112.5 NR NR NR W21x68 1.040 55.9 55.9 112.5 NR NR NR W24x76 1.050 55.6 55.6 111.6 NR NR NR W10x45 1.060 55.3 55.3 110.7 NR NR NR W12x50 1.060 55.3 55.3 110.7 NR NR NR W14x53 1.060 55.3 55.3 110.7 NR NR NR W16x57 1.090 54.4 54.4 108.0 NR NR NR W16x67 1.090 54.4 54.4 108.0 NR NR NR W12x58 1.100 54.1 54.1 107.1 NR NR NR W14x61 1.100 54.1 54.1 107.1 NR NR NR

W10x54 1.110 53.8 53.8 106.1 NR NR NR W12x65 1.110 53.8 53.8 106.1 NR NR NR W21x73 1.110 53.8 53.8 106.1 NR NR NR W30x99 1.120 53.5 53.5 105.2 NR NR NR W18x65 1.130 53.2 53.2 104.3 NR NR NR W18x76 1.130 53.2 53.2 104.3 NR NR NR W24x84 1.150 52.6 52.6 102.5 NR NR NR W27x94 1.150 52.6 52.6 102.5 NR NR NR W8x48 1.210 50.9 50.9 97.1 NR NR NR W30x108 1.210 50.9 50.9 97.1 NR NR NR W33x118 1.210 50.9 50.9 97.1 NR NR NR W10x60 1.220 50.6 50.6 96.2 NR NR NR W14x68 1.220 50.6 50.6 96.2 NR NR NR W18x71 1.220 50.6 50.6 96.2 NR NR NR W12x72 1.230 50.3 50.3 95.2 NR NR NR W24x104 1.240 50.0 50.0 94.3 NR NR NR W27x102 1.240 50.0 50.0 94.3 NR NR NR W16x77 1.250 49.7 49.7 93.4 NR NR NR W21x83 1.260 49.4 49.4 92.5 NR NR NR W18x86 1.270 49.1 49.1 91.6 NR NR NR W24x94 1.280 48.8 48.8 90.7 NR NR NR W36x135 1.290 48.5 48.5 89.8 NR NR NR W21x101 1.300 48.2 48.2 88.9 NR NR NR W30x116 1.300 48.2 48.2 88.9 NR NR NR W14x90 1.310 47.9 47.9 88.0 NR NR NR W14x74 1.320 47.6 47.6 87.1 NR NR NR W33x130 1.320 47.6 47.6 87.1 NR NR NR W12x79 1.340 47.0 47.0 85.3 NR NR NR

W10x68 1.380 45.9 45.9 81.6 NR NR NR W24x117 1.380 45.9 45.9 81.6 NR NR NR W27x114 1.390 45.6 45.6 80.7 NR NR NR W30X124 1.390 45.6 45.6 80.7 NR NR NR W21x93 1.400 45.3 45.3 79.8 NR NR NR W24x103 1.400 45.3 45.3 79.8 NR NR NR W18x97 1.420 44.7 44.7 78.0 NR NR NR W14x99 1.430 44.4 44.4 77.1 NR NR NR W16x89 1.430 44.4 44.4 77.1 NR NR NR W21x111 1.430 44.4 44.4 77.1 NR NR NR W33x141 1.430 44.4 44.4 77.1 NR NR NR W36x150 1.430 44.4 44.4 77.1 NR NR NR W8x58 1.440 44.1 44.1 76.2 NR NR NR W14x82 1.450 43.8 43.8 75.3 NR NR NR W12x87 1.470 43.2 43.2 73.4 NR NR NR W30x132 1.470 43.2 43.2 73.4 NR NR NR W36x160 1.510 42.0 42.0 69.8 NR NR NR W33x152 1.530 41.4 41.4 68.0 NR NR NR W10x77 1.540 41.1 41.1 67.1 NR NR NR W24x131 1.540 41.1 41.1 67.1 NR NR NR W18x106 1.550 40.8 40.8 66.2 NR NR NR W27x146 1.550 40.8 40.8 66.2 NR NR NR W27x129 1.560 40.5 40.5 65.3 NR NR NR W14x109 1.570 40.2 40.2 64.4 NR NR NR W21x122 1.570 40.2 40.2 64.4 NR NR NR W16x100 1.590 39.6 39.6 62.5 NR NR NR W36x170 1.600 39.3 39.3 61.6 NR NR NR W12x96 1.610 39.1 39.1 60.7 NR NR NR

W30x148 1.640 38.2 38.2 58.0 NR NR NR W8x67 1.650 37.9 37.9 57.1 NR NR NR W30x173 1.660 37.6 37.6 56.2 NR NR NR W21x132 1.680 37.0 37.0 54.4 NR NR NR W24x146 1.700 36.4 36.4 52.5 NR NR NR W27x161 1.700 36.4 36.4 52.5 NR NR NR W33x169 1.700 36.4 36.4 52.5 NR NR NR W14x120 1.710 36.1 36.1 51.6 NR NR NR W18x119 1.720 35.8 35.8 50.7 NR NR NR W36x182 1.720 35.8 35.8 50.7 NR NR NR W10x88 1.740 35.2 35.2 48.9 58.2 58.2 63.6 The following thicknesses apply for fluted floor units topped with lightweight or normal weight concrete. Thicknesses include the 2 mils of primer: Restrained Assembly Rating (Hr) Max 2 Unrestrained Beam Rating (Hr) 1 1-1/2 2 Steel Size W/D Thickness, Mils W6x16 0.684 66.4 66.4 103.8 W12x30 0.699 66.0 66.0 103.0 W16x36 0.702 65.9 65.9 102.8 W8x24 0.704 65.8 65.8 102.7 W10x26 0.708 65.7 65.7 102.5 W14x34 0.725 65.2 65.2 101.5 W21x44 0.746 64.6 64.6 100.3 W21x48 0.750 64.5 64.5 100.1 W18x40 0.768 63.9 63.9 99.1 W5x19 0.776 63.7 63.7 98.6

W16x40 0.780 63.6 63.6 98.4 W10x33 0.786 63.4 63.4 98.1 W8x31 0.803 62.9 62.9 97.1 W10x30 0.809 62.7 62.7 96.8 W14x38 0.809 62.7 62.7 96.8 W12x35 0.810 62.7 62.7 96.7 W8x28 0.819 62.4 62.4 96.2 W24x55 0.828 62.2 62.2 95.7 W21x50 0.838 61.9 61.9 95.1 W6x25 0.839 61.8 61.8 95.1 W21x55 0.854 61.4 61.4 94.2 W12x40 0.860 61.2 61.2 93.9 W16x45 0.870 60.9 60.9 93.3 W14x43 0.874 60.8 60.8 93.1 W18x46 0.878 60.7 60.7 92.9 W18x50 0.880 60.6 60.6 92.8 W8x35 0.907 59.8 59.8 91.3 W10x39 0.929 59.2 59.2 90.0 W24x62 0.934 59.0 59.0 89.7 W24x68 0.942 58.8 58.8 89.3 W21x57 0.952 58.5 58.5 88.7 W21x62 0.952 58.5 58.5 88.7 W16x50 0.962 58.2 58.2 88.2 W18x55 0.963 58.2 58.2 88.1 W14x48 0.970 58.0 58.0 87.7 W12x45 0.974 57.8 57.8 87.5 W10x49 1.010 56.8 56.8 85.5 W12x53 1.020 56.5 56.5 84.9

W30x90 1.020 56.5 56.5 84.9 W8x40 1.030 56.2 56.2 84.3 W27x84 1.030 56.2 56.2 84.3 W18x60 1.040 55.9 55.9 83.8 W21x68 1.040 55.9 55.9 83.8 W24x76 1.050 55.6 55.6 83.2 W10x45 1.060 55.3 55.3 82.6 W12x50 1.060 55.3 55.3 82.6 W14x53 1.060 55.3 55.3 82.6 W16x57 1.090 54.4 54.4 81.0 W16x67 1.090 54.4 54.4 81.0 W12x58 1.100 54.1 54.1 80.4 W14x61 1.100 54.1 54.1 80.4 W10x54 1.110 53.8 53.8 79.8 W12x65 1.110 53.8 53.8 79.8 W21x73 1.110 53.8 53.8 79.8 W30x99 1.120 53.5 53.5 79.3 W18x65 1.130 53.2 53.2 78.7 W18x76 1.130 53.2 53.2 78.7 W24x84 1.150 52.6 52.6 77.6 W27x94 1.150 52.6 52.6 77.6 W8x48 1.210 50.9 50.9 74.2 W30x108 1.210 50.9 50.9 74.2 W33x118 1.210 50.9 50.9 74.2 W10x60 1.220 50.6 50.6 73.6 W14x68 1.220 50.6 50.6 73.6 W18x71 1.220 50.6 50.6 73.6 W12x72 1.230 50.3 50.3 73.1

W24x104 1.240 50.0 50.0 72.5 W27x102 1.240 50.0 50.0 72.5 W16x77 1.250 49.7 49.7 71.9 W21x83 1.260 49.4 49.4 71.4 W18x86 1.270 49.1 49.1 70.8 W24x94 1.280 48.8 48.8 70.3 W36x135 1.290 48.5 48.5 69.7 W21x101 1.300 48.2 48.2 69.1 W30x116 1.300 48.2 48.2 69.1 W14x90 1.310 47.9 47.9 68.6 W14x74 1.320 47.6 47.6 68.0 W33x130 1.320 47.6 47.6 68.0 W12x79 1.340 47.0 47.0 66.9 W10x68 1.380 45.9 45.9 64.6 W24x117 1.380 45.9 45.9 64.6 W27x114 1.390 45.6 45.6 64.1 W30X124 1.390 45.6 45.6 64.1 W21x93 1.400 45.3 45.3 63.5 W24x103 1.400 45.3 45.3 63.5 W18x97 1.420 44.7 44.7 62.4 W14x99 1.430 44.4 44.4 61.8 W16x89 1.430 44.4 44.4 61.8 W21x111 1.430 44.4 44.4 61.8 W33x141 1.430 44.4 44.4 61.8 W36x150 1.430 44.4 44.4 61.8 W8x58 1.440 44.1 44.1 61.2 W14x82 1.450 43.8 43.8 60.7 W12x87 1.470 43.2 43.2 59.5

W30x132 1.470 43.2 43.2 59.5 W36x160 1.510 42.0 42.0 57.3 W33x152 1.530 41.4 41.4 56.2 W10x77 1.540 41.1 41.1 55.6 W24x131 1.540 41.1 41.1 55.6 W18x106 1.550 40.8 40.8 55.0 W27x146 1.550 40.8 40.8 55.0 W27x129 1.560 40.5 40.5 54.5 W14x109 1.570 40.2 40.2 53.9 W21x122 1.570 40.2 40.2 53.9 W16x100 1.590 39.6 39.6 52.8 W36x170 1.600 39.3 39.3 52.2 W12x96 1.610 39.1 39.1 51.7 W30x148 1.640 38.2 38.2 50.0 W8x67 1.650 37.9 37.9 49.4 W30x173 1.660 37.6 37.6 48.8 W21x132 1.680 37.0 37.0 47.7 W24x146 1.700 36.4 36.4 46.6 W27x161 1.700 36.4 36.4 46.6 W33x169 1.700 36.4 36.4 46.6 W14x120 1.710 36.1 36.1 46.0 W18x119 1.720 35.8 35.8 45.5 W36x182 1.720 35.8 35.8 45.5 W10x88 1.740 35.2 35.2 44.3 NR - Not Rated 3M CANADA COMPANY Type 3M "FireDam Intumescent Coating WB1000". Investigated for Interior Conditioned Space Purpose and Interior General Purpose.

8. Top Coat (Optional, Not Shown) - Top coat is not required. Finishing topcoat, Sherwin Williams Steel-Master 9500 silicone alkyd finish coating applied at 3 mil thickness or ICI Devflex HP 4216 water-based acrylic finish coating applied at 2 mil thickness. *Bearing the UL Classification Mark Last Updated on 2008-09-04 Questions? Notice of Disclaimer Page Top The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Listed and covered under UL's Follow-Up Service. Always look for the Mark on the product. UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Designs and/or Listings (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from Underwriters Laboratories Inc." must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "Copyright 2008 Underwriters Laboratories Inc. "