What Should Architects Know About Corridor Modules Up to 65 Feet Long?

As the demand for workforce housing intensifies across the US West, architects increasingly encounter the practical and regulatory complexities of corridor modules up to 65 feet in length. These large-scale modular building components offer transformative advantages in schedule compression re-thinkingthefuture and quality control, yet require a nuanced understanding of definitions, permitting workflows, transport logistics, and site coordination.

In this post, we explore key considerations architects should keep in mind when specifying and coordinating corridor modules, highlighting insights from industry leaders such as Irontown Modular, The Other Side Village, and My Cozy Outdoors.

Understanding Workforce Housing as a Recruiting Constraint

The US West region faces escalating workforce housing shortages constraining labor recruitment — especially in construction, hospitality, and service industries. Modular and manufactured housing solutions now play an essential role in addressing these shortages quickly and efficiently.

Architects must align corridor module design with workforce housing needs by:

• Designing flexible layouts: Maximizing unit counts without compromising livability.
• Specifying durable, low-maintenance materials: To withstand high occupant turnover and reduce operational costs.
• Incorporating modular solutions optimized for rapid onsite assembly: To mitigate labor shortages and reduce project timelines.

Irontown Modular has demonstrated how thoughtful modular design can meet workforce housing demands by providing high-quality, pre-fabricated corridor modules that minimize onsite rework.

Manufactured vs Modular: Definitions and Building Codes

One common source of confusion among architects relates to the distinction between manufactured and modular building components. Both have important differences that impact project design, approvals, and installation.

Definitions

• Manufactured housing: Typically built to HUD standards, manufactured homes are built entirely in a factory, transported on their own chassis, and installed on-site often with a permanent foundation. They are classified as factory-built housing and fall under different regulations compared to modular construction.
• Modular construction: Involves fabricating volumetric units or modules in a factory to state or local building codes equivalent to site-built buildings. Modules are transported on flatbed trucks and assembled onsite onto a foundation, conforming to the same codes as traditional construction.

Code Implications

Architects must ensure that corridor modules up to 65 feet in length comply with applicable codes:

• State and local Building Codes: Certain states may require additional inspections or approvals for modular components.
• Fire and Egress Requirements: Corridor modules often contain critical communal circulation spaces, requiring rigorous fire-resistance ratings and egress planning.
• Transport and Oversize Load Restrictions: These impact module dimensions permitted on public roads.

The Other Side Village, a leader in modular multifamily development, emphasizes early collaboration with code officials to clarify these distinctions to avoid permitting delays.

Permitting Workflow and Inspections for Modular Projects

Permitting modular projects is distinct from conventional construction due to the nature of factory fabrication coupled with onsite assembly. Architect involvement throughout this workflow can facilitate smoother approvals and inspections.

Typical Permitting Steps

1. Pre-application Meetings: Engage with AHJ (Authority Having Jurisdiction) early to discuss modular plans and seek guidance on inspection requirements.
2. Factory Plan Review: Submit module shop drawings and structural details for separate approval by local jurisdictions or third-party agencies.
3. Onsite Building Permit Application: Includes foundation and site work unrelated to modules.
4. Inspection Coordination: Factory inspections may be performed by third parties, while the AHJ focuses on foundations and final assembly inspections onsite.

My Cozy Outdoors has found that utilizing a single point of contact between factory, AHJ, and general contractor minimizes miscommunication and expedites the overall schedule.

Schedule Compression Through Parallel Factory and Site Work

One of the most compelling benefits of corridor modules up to 65 feet long is the potential for schedule compression by enabling parallel manufacturing and site construction.

• Factory Module Production: Often takes place offsite simultaneously with site excavation and foundation work.
• Site Preparations: Include utilities, foundation pours, and grading that can progress without waiting for module fabrication to complete.
• Onsite Assembly: Modules are delivered and craned into place, rapidly advancing the building envelope.

Because corridors can be lengthy, careful planning ensures that site logistics, especially turning radius for delivery trucks, align with module dimensions and transport routes.

Transport Planning and Site Turning Radius

Modules up to 65 feet long push the limits of transport logistics, demanding specialized planning by architects and builders alike.

• Oversize Load Permits: Required for highway transport and affecting allowable routes and delivery windows.
• Site Access Design: Sufficient turning radius and clearances to accommodate flatbed trucks and cranes.
• Staging Areas: Onsite laydown space for modules awaiting installation.

Irontown Modular collaborates closely with architects and transport planners to map routes and advise on site preparations, ensuring smooth module delivery and installation.

Summary Table: Key Considerations for Corridor Modules Up to 65 Feet Long

Aspect Key Considerations Industry Best Practice Workforce Housing Needs Durable materials, flexible unit layouts, fast deployment Collaborate early with housing developers like The Other Side Village Manufactured vs Modular Code definitions, transport methods, and inspection regimes differ Clarify code jurisdiction early to avoid permitting delays Permitting Workflow Dual factory and onsite approvals, third-party inspections possible Single point of contact coordination (as done by My Cozy Outdoors) Schedule Compression Parallel factory production and site prep Integrate detailed schedule milestones for modular and site work Transport & Site Logistics Oversize load permits, turning radius, staging area Early planning with modular builder and transport partners (Irontown Modular)

Conclusion

Corridor modules up to 65 feet long represent a powerful tool in the architect's toolkit to deliver workforce housing faster and more efficiently. However, realizing these benefits requires architects to master key differences in modular definitions and codes, orchestrate a robust permitting and inspection workflow, and plan carefully for onsite logistics like transport routes and site turning radius.

By learning from the experiences of modular pioneers such as Irontown Modular, The Other Side Village, and My Cozy Outdoors, architects can reduce risk, accelerate schedules, and contribute meaningfully to alleviating workforce housing shortages across the US West.