FIRE-RESISTANCE DESIGN

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BXUV - Fire Resistance Ratings - ANSI/UL 263 Certified for United States

BXUV7 - Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada

See General Information for Fire-resistance Ratings - ANSI/UL 263 Certified for United States
Design Criteria and Allowable Variances

See General Information for Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada
Design Criteria and Allowable Variances

Design No. X528

October 24, 2017

Ratings — 1, 2 and 3 Hr.

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

    1. Steel Column — Min sizes of W-shaped and tubular steel columns which appear in the AISC Steel Construction Manual as shown under Item 2.
    2. Gypsum Board* — Any 1/2 in. thick UL Classified Gypsum Board that is eligible for use in Design No. X515. Any 5/8 in. thick UL Classified Gypsum Board that is eligible for use in Design Nos. L501, G512 or U305. Nom 1/2 in. or 5/8 in. thick gypsum board. Applied in layers as noted in the above illustrations. Boards are to be applied vertically without horizontal joints. Min total thickness of layers in inches for the various ratings and min column sizes are as follows:
    W Shaped
    Column
    Min Column
    Size


    Rating (Hr)


    Corner Details For Various Rating
    1 2 3 1 Hr 2 Hr 3 Hr
    Total thickness (In.)
    W4x13 1 1-1/2 2-1/4 B C D
    W6x15.5 1 1-1/2 2-1/4 B C D
    W10x49 1/2 1-1/8 1-7/8 A B C
    Tube Shaped columns
    TS 4 by 4
    by0.188 1 1-3/4 2-5/8 B C D
    TS 8 by 8
    by 0.250 5/8 1-1/2 2-1/4 A C D

    ACADIA DRYWALL SUPPLIES LTD (View Classification) — CKNX.R25370


    AMERICAN GYPSUM CO (View Classification) — CKNX.R14196


    BEIJING NEW BUILDING MATERIALS PUBLIC LTD CO (View Classification) — CKNX.R19374


    CERTAINTEED GYPSUM INC (View Classification) — CKNX.R3660


    CGC INC (View Classification) — CKNX.R19751


    CONTINENTAL BUILDING PRODUCTS OPERATING CO, L L C (View Classification) — CKNX.R18482


    GEORGIA-PACIFIC GYPSUM L L C (View Classification) — CKNX.R2717


    LOADMASTER SYSTEMS INC (View Classification) — CKNX.R11809


    NATIONAL GYPSUM CO (View Classification) — eXP-C, CKNX.R3501


    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM (View Classification) — CKNX.R7094


    PANEL REY S A (View Classification) — CKNX.R21796


    SIAM GYPSUM INDUSTRY (SARABURI) CO LTD (View Classification) — CKNX.R19262


    THAI GYPSUM PRODUCTS PCL (View Classification) — CKNX.R27517


    UNITED STATES GYPSUM CO (View Classification) — CKNX.R1319


    USG BORAL DRYWALL SFZ LLC (View Classification) — CKNX.R38438


    USG MEXICO S A DE C V (View Classification) — CKNX.R16089


    2A. Gypsum Board* — As an alternate to Item 2- 3/4 in. thick gypsum wallboard. For 2 Hr rating, 1-1/2 in. total thickness, installed in accordance with corner detail B. For 3 Hr rating, 2-1/4 in. total thickness installed in accordance with corner detail C. Boards are to be applied vertically without horizontal joints.

    CGC INC — Type IP-X3 or ULTRACODE


    UNITED STATES GYPSUM CO — Type IP-X3 or ULTRACODE


    USG BORAL DRYWALL SFZ LLC — Type ULTRACODE


    USG MEXICO S A DE C V — Type IP-X3 or ULTRACODE


    2B. Gypsum Board* — (As an alternate to Items 2 and 2A) — Nominal 5/8 in. thick panels. One of the layers of Gypsum Board (Item 2) used to obtain the minimum required thickness in Item 2 may be substituted with one layer and secured as described in Item 2.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM — Type QuietRock ES


    2C. Wall and Partition Facings and Accessories* — (As an alternate to Item 2 through 2B) — Composite Gypsum Panel — Nominal 5/8 in. thick panels. One of the layers of Gypsum Board (Item 2) used to obtain the minimum required thickness in Item 2 may be substituted with one layer of composite gypsum panel and secured as described in Item 2.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUM — Type QuietRock QR


    3. Steel Stud — 1-5/8 in. wide with 1-5/16 and 1-7/16 in. legs having a 1/4- in. folded flange, fabricated from No. 25 MSG galv steel. Length to be 1/2 in. less than the assembly height.
    3A. As an alternate to Item 3 Steel Framing Members* — galv. steel clips spaced 4 ft OC and 1-1/4 in. from top and bottem of column. A No. 28 MSG galv steel support angle with 1-1/4 in. length shall be placed over clips and secured with screws attaching the wallboard. The angle cut 1 in. less than assembly height splices in angle to occur over clips. The clips for use with wide flange columns only.

    JOHN WAGNER ASSOCIATES INC, DBA GRABBER — Types CB, CB1Clips.


    4. Corner Beads — No. 28 MSG galv steel, 1-1/4 in. legs to be attached to the wallboard with No. 6 by 1 in. screws spaced 12 in. OC max.
    5. Tie Wire — No. 18 SWG steel wire spaced 24 in. OC used with second layer of wallboard.
    6. Screws — For attaching first layer of wallboard to steel studs, and third layer of wallboard to 2 in. by 2 in. steel angle (25 Ga) to be No. 6 by 1 in. (or 1-1/4 in. for 3/4 in. thick wallboard) Phillips head self-drilling, self-tapping double lead screws spaced 24 in. OC For attaching second layer of wallboard to steel studs and fourth layer of wallboard to 2 in. by 2 in. steel angle (25 Ga) to be No. 6 by 1-3/4 in. (or 2-1/4 in. for 3/4 in. thick wallboard) steel screws of the same type spaced 12 in. OC For attaching third layer of wallboard to steel studs to be No. 8 by 2-1/4 in. screws of the same type spaced 12 in. OC
    7. Finishing System — (Not Shown) — Joint compound applied over corner beads to a thickness of 1/16 in.

    * Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

Last Updated on 2017-10-24
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