Washington Minimum Header Structural Requirements for Manufactured Home Alternations are the minimum standards of structural support for manufactured home modifications. These requirements are specified by the Washington State Building Code Council in the Washington Administrative Code (WAC) Chapter 296-150M. The requirements include the following: 1. Wall headers: Wall headers must be provided at all window and door openings, as well as any other openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 2. Roof headers: Roof headers must be provided for all roof openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 3. Floor headers: Floor headers must be provided for all floor openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 4. Wall studs: Wall studs must be provided at all openings in the wall, as well as any other openings that exceed four feet in width. The studs must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 5. Roof trusses: Roof trusses must be provided at all roof openings that exceed four feet in width. The trusses must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 6. Floor joists: Floor joists must be provided at all floor openings that exceed four feet in width. The joists must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. These Washington Minimum Header Structural Requirements for Manufactured Home Alternations are designed to ensure proper structural support for modifications and additions to manufactured homes in order to prevent structural failure and ensure the safety of occupants.
Washington Minimum Header Structural Requirements for Manufactured Home Alternations are the minimum standards of structural support for manufactured home modifications. These requirements are specified by the Washington State Building Code Council in the Washington Administrative Code (WAC) Chapter 296-150M. The requirements include the following: 1. Wall headers: Wall headers must be provided at all window and door openings, as well as any other openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 2. Roof headers: Roof headers must be provided for all roof openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 3. Floor headers: Floor headers must be provided for all floor openings that exceed four feet in width. The header must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 4. Wall studs: Wall studs must be provided at all openings in the wall, as well as any other openings that exceed four feet in width. The studs must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 5. Roof trusses: Roof trusses must be provided at all roof openings that exceed four feet in width. The trusses must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. 6. Floor joists: Floor joists must be provided at all floor openings that exceed four feet in width. The joists must be at least two inches in thickness and have a minimum bearing area of 1-1/2 inches. These Washington Minimum Header Structural Requirements for Manufactured Home Alternations are designed to ensure proper structural support for modifications and additions to manufactured homes in order to prevent structural failure and ensure the safety of occupants.
