Cost of Subfloor Replacement

Replacing a subfloor is a crucial step in ensuring the stability and longevity of your flooring. The cost varies based on several factors including material choice, room size, and labor complexity. Understanding these elements helps in planning a comprehensive budget for your project.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Room Size and Layout

Larger rooms require more materials and labor, increasing overall costs. Complex layouts with multiple corners or irregular shapes can also add to the expense.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Subfloor Material Type

Different materials such as plywood, oriented strand board (OSB), or cement board vary in cost and durability, impacting the total replacement price.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Existing Floor Condition

Extensive damage or rot may necessitate additional repairs or removal of underlying structures, influencing the overall cost.

FactorEstimated Cost
Standard Room (150 sq ft)$1,200 - $2,000
Removal of Old Subfloor$300 - $700
Material (Plywood or OSB)$30 - $50 per sheet
Labor Costs$50 - $70 per hour
Additional Repairs$200 - $1,000

The total cost of subfloor replacement can range significantly based on the specifics of your project. On average, homeowners might spend between $1,200 and $4,000 for a standard room, including materials and labor. Factors like the extent of damage, choice of materials, and complexity of the space influence the final price. For larger or more complex areas, costs can escalate due to additional labor and materials required.

In addition to the basic replacement, certain internal components such as insulation, vapor barriers, or underlayment may add to the overall expense. Proper assessment and planning with a professional can help ensure accurate budgeting and a successful project outcome.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Vapor Barrier Installation

Adding vapor barriers can cost between $100 and $300, depending on the size of the area and material choice. It helps prevent moisture issues beneath the new subfloor.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Insulation Placement

Insulation costs typically range from $0.50 to $2 per square foot, playing a role in temperature regulation and soundproofing.

Subfloor Replacement Cost Guide — Cost of Subfloor Replacement
Fasteners and Adhesives

Specialized fasteners and adhesives can add about $50 to $150 to the total cost, ensuring a secure and durable installation.

Related ServiceAverage Price
Floor Joist Repair$300 - $1,200
Subfloor Reinforcement$200 - $800
Underlayment Installation$1 - $3 per sq ft
Floor Leveling$500 - $2,000
Moisture Barrier Installation$150 - $400
Floor Inspection and Assessment$100 - $300
Old Floor Removal$200 - $600
Interior Demolition for Floor Replacement$300 - $1,000
Concrete Subfloor Repair$400 - $2,000
Structural Beam Reinforcement$1,000 - $3,500

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