[Code of Federal Regulations] [Title 24, Volume 5] [Revised as of April 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 24CFR3280.304] [Page 124-127] TITLE 24--HOUSING AND URBAN DEVELOPMENT CHAPTER XX--OFFICE OF ASSISTANT SECRETARY FOR HOUSING--FEDERAL HOUSING COMMISSIONER, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT PART 3280_MANUFACTURED HOME CONSTRUCTION AND SAFETY STANDARDS--Table of Contents Subpart D_Body and Frame Construction Requirements Sec. 3280.304 Materials. (a) Dimension and board lumber shall not exceed 19 percent moisture content at time of installation. (b)(1) Standards for some of the generally used materials and methods of construction are listed in the following table. Steel Specification for Aluminum Structures Construction Manual Series-- Section 1, Fifth Edition--1986, The Aluminum Association. Specification for Structural Steel Buildings--Allowable Stress Design and Plastic Design--AISC--June 1, 1989. The following parts of this reference standard are not applicable: 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.4.6, 1.5.1.5, 1.5.5, 1.6, 1.7, 1.8, 1.9, 1.10.4 through 1.10.7, 1.10.9, 1.11, 1.13, 1.14.5, 1.17.7 through 1.17.9, 1.19.1, 1.19.3, 1.20, 1.21, 1.23.7, 1.24, 1.25.1 through 1.25.5, 1.26.4, 2.3, 2.4, 2.8 through 2.10. [[Page 125]] Specification for the Design of Cold-Formed Steel Structural Members--AISI--1986 Edition With 1989 Addendum. The following parts of this reference standard are not applicable: 3.1.2, 4.2.1, 4.2.4. Stainless Steel Cold-Formed Structural Design Manual--AISI-1974. The following part of this reference standard is not applicable: 3.1.2. Standard Specifications Load Tables and Weight Tables for Steel Joists and Joist Girders, only Sections 1-6 and the table for ``H series only'' are applicable--Steel Joist Institute 1992. Manual for Structural Applications of Steel Cables for Buildings-- AISI-1973. Standard Specification for Strapping, Flat Steel and Seals--ASTM D3953-91. Wood and Wood Products Basic Hardboard--ANSI/AHA A135.4-1982. Prefinished Hardboard Paneling--ANSI/AHA A135.5-1988. Hardboard Siding--ANSI/AHA A135.6-1990. Interim Voluntary Standard for Hardwood and Decorative Plywood--HPVA Interim Standard HP-1-1993. Structural Design Guide for Hardwood Plywood Wall Panels--HPMA Design Guide HP-SG-86. For wood products--Structural Glued Laminated Timber--ANSI/AITC A190.1-1992. Voluntary Product Standard, Construction and Industrial Plywood--PS- 1-83. APA Design/Construction Guide, Residential and Commercial--APA E30M- 1993. Design and Fabrication of All-Plywood Beams, Suppl. 5--APA-H 815D- 1989. Plywood Design Specification--APA-Y 510Q-1993. Design and Fabrication of Glued Plywood-Lumber Beams, Suppl. 2--APA- S 812P-1992. Design and Fabrication of Plywood Curved Panels, Suppl. 1--APA-S 811M-1990. Design and Fabrication of Plywood Sandwich Panels, Suppl. 4--APA-U 814G-1990. Performance Standards and Policies for Structural Use Panels--APA- PRP-E-108P, E445N-1989. Design and Fabrication of Plywood Stressed-Skin Panels, Suppl. 3-- APA-U 813K-1990. National Design Specifications for Wood Construction, 1991 Edition, With Supplement, Design Values for Wood Construction, AFPA. Wood Structural Design Data, 1986 Edition With 1992 Revisions, AFPA. Span Tables for Joists and Rafters--PS-20-70, 1993, AFPA. Design Values for Joists and Rafters, American Softwood Lumber Standard Sizes, 1992, AFPA. Design Specifications for Metal Plate Connected Wood Trusses--TPI- 85. Wood Particleboard--ANSI A208.1-1989, Wood Flush Doors--ANSI/NWWDA I.S.1-87. Wood Windows--ANSI/NWWDA I.S.2-87. Wood Sliding Patio Doors--NWWDA-I.S.3-88. Water Repellent Preservative Non Pressure Treatment for Millwork-- NWWDA-I.S.4-81. Standard Test Methods for Puncture and Stiffness of Paperboard, and Corrugated and Solid Fiberboard--ASTM D781-68 (73). Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials--ASTM D4442. Standard Test Methods for Use and Calibration of Hand-Held Moisture Meters--ASTM D4444-92. Other Standard Specification for Gypsum Wallboard--ASTM C36-93. Fasteners Application and Fastening Schedule: Power-Driven, Mechanically Driven and Manually Driven Fasteners--HUD-FHA Use of Materials Bulletin--UM-25d-73. Unclassified American Society of Civil Engineering Minimum Design Loads for Buildings and Other Structures--ANSI/ASCE 7-88. [[Page 126]] Performance Standard for Wood-Based Structural Use Panels--PS-2-92, APA (also known as NIST Standard PS-2-92). Safety Performance Specifications and Methods of Test for Safety Glazing Materials Used in Building--ANSI Z97.1-1984. (2) Materials and methods of construction utilized in the design and construction of manufactured homes which are covered by the standards in the following table, or any applicable portion thereof shall comply with these requirements. (3) Engineering analysis and testing methods contained in these references shall be utilized to judge conformance with accepted engineering practices required in Sec. 3280.303(c). (4) Materials and methods of installation conforming to these standards shall be considered acceptable when installed in conformance with the requirements of this part. (5) Materials meeting the standards (or the applicable portion thereof) are considered acceptable unless otherwise specified herein or unless substantial doubt exists as to conformance. (c) Wood products shall be identified as complying with the appropriate standards. [40 FR 58752, Dec. 18, 1975, as amended at 42 FR 961, Jan. 4, 1977. Redesignated at 44 FR 20679, Apr. 6, 1979, as amended at 58 FR 55006, Oct. 25, 1993; 59 FR 15113, Mar. 31, 1994] Effective Date Note: At 70 FR 72043, Nov. 30, 2005, Sec. 3280.304 was amended by revising paragraph (b)(1), effective May 30, 2006. For the convenience of the user, the revised text follows: Sec. 3280.304 Materials. * * * * * (b)(1) Standards for some of the generally used materials and methods of construction are listed in the following table: Aluminum Aluminum Design Manual, Specifications and Guidelines for Aluminum Structures, Part 1-A, Sixth Edition, October 1994, and Part 1-B, First Edition, October 1994. Steel Specification for Structural Steel Buildings--Allowable Stress Design and Plastic Design--AISC-S335, 1989. The following parts of this reference standard are not applicable: 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.4.6, 1.5.1.5, 1.5.5, 1.6, 1.7, 1.8, 1.9, 1.10.4 through 1.10.7, 1.10.9, 1.11, 1.13, 1.14.5, 1.17.7 through 1.17.9, 1.19.1, 1.19.3, 1.20, 1.21, 1.23.7, 1.24, 1.25.1 through 1.25.5, 1.26.4, 2.3, 2.4, 2.8 through 2.10. Specification for the Design of Cold-Formed Steel Structural Members--AISI-1996. Specification for the Design of Cold-Formed Stainless Steel Structural Members--SEI/ASCE 8-02, 2002. Standard Specifications Load Tables and Weight Tables for Steel Joists and Joist Girders, SJI, Fortieth Edition, 1994. Structural Applications of Steel Cables for Buildings--ASCE19, 1996. Standard Specification for Strapping, Flat Steel and Seals--ASTM D3953, 1991. Wood and Wood Products Basic Hardboard--ANSI/AHA A135.4-1995. Prefinished Hardboard Paneling--ANSI/AHA A135.5-1995. Hardboard Siding--ANSI/AHA A135.6-1998. American National Standard for Hardwood and Decorative Plywood-- ANSI/HPVA HP-1-1994 (Approved 1995). Structural Design Guide for Hardwood Plywood Wall Panels--HPVA Design Guide HP-SG-96, 1996. For wood products--Structural Glued Laminated Timber--ANSI/AITC A190.1-1992. Construction and Industrial Plywood (With Typical APA Trademarks)-- PS 1-95. APA Design/Construction Guide, Residential and Commercial--APA E30- P-1996. Design Specifications for Metal Plate and Wood Connected Trusses-- TPI-85. Design and Fabrication of All-Plywood Beams--APA H-815E (PDS Supplement 5), 1995. Panel Design Specification--APA D410A, 2004. Design and Fabrication of Glued Plywood-Lumber Beams--APA-S 812Q, Suppl. 2-1992. Design and Fabrication of Plywood Curved Panels--APA-S 811M, Suppl. 1, 1990. Design and Fabrication of Plywood Sandwich Panels--APA-U 814H, Suppl. 4, 1990. Voluntary Product Standard, Performance Standard for Wood-based Structural Use Panels--PS 2-92, 1992 (also known as NIST Standard PS 2- 96). Design and Fabrication of Plywood Stressed-Skin Panels--APA-U 813L, Suppl. 3, 1990. National Design Specifications for Wood Construction, 2001 Edition, with Supplement, Design Values for Wood Construction, NDS-2001, ANSI/ AFPA. Wood Structural Design Data, 1989, Revised 1992, AFPA. Span Tables for Joists and Rafters--PS-20-70, 1993, AFPA. Design Values for Joists and Rafters 1992, AFPA. [[Page 127]] Particleboard--ANSI A208.1-1999. Voluntary Specifications for Aluminum, Vinyl (PVC) and Wood Windows and Glass Doors--ANSI/AAMA/NWWDA 101/I.S.2-97. Standard Test Methods for Puncture and Stiffness of Paperboard, and Corrugated and Solid Fiberboard--ASTM D781, 1973. Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials--ASTM D 4442-92 (Re-approved 1997), 1997. Standard Test Methods for Use and Calibration of Hand-Held Moisture Meters--ASTM D4444, 1992. Other Standard Specification for Gypsum Wallboard--ASTM C 36/C 36M-99, 1999. Fasteners National Evaluation Report, Power Driven Staples, Nails, and Allied Fasteners for Use in All Types of Building Construction--NER-272, 1997. Unclassified Minimum Design Loads for Buildings and Other Structures--ASCE 7- 1988. Safety Performance Specifications and Methods of Test for Safety Glazing Materials Used in Building--ANSI Z97.1-1984. * * * * *