What Contractors Need to Know About Hardwood Decking Warranties

Introduction

Hardwood decking warranties are often misunderstood — both by homeowners and by contractors who install the product. Understanding what's actually covered, what installation requirements must be met to maintain warranty validity, and how to protect yourself as a contractor is essential for anyone building with tropical hardwoods.

Key Takeaway: Most hardwood decking warranties cover material defects — not performance failures caused by improper installation. Following published installation guidelines and documenting your work is your best protection.

What Hardwood Decking Warranties Typically Cover

For tropical hardwoods like Ipe and Cumaru, material warranties typically cover:

• Species misrepresentation (you receive a different species than specified)
• Significant defects in grade (major defects beyond what's normal for the stated grade)
• Dimensional accuracy (boards outside stated tolerance for width and thickness)

What they typically do not cover:

• Natural movement (cupping, bowing, checking) — this is expected wood behavior
• Color change and weathering — all wood changes color outdoors
• Performance failures caused by installation errors
• Failures caused by improper maintenance

Installation Requirements That Affect Warranty

Most warranties are voided by:

• Incorrect joist spacing (most 5/4 boards require 16" o.c. maximum for perpendicular installation)
• Inadequate fastening (wrong fastener type or insufficient fastener quantity)
• Installation over wet or contaminated surfaces
• Failure to acclimate boards before installation
• Use of improper hardware (non-stainless in coastal environments)

Document your installation carefully — photos at each stage are valuable if a claim arises.

Contractor's Exposure

As a contractor, you take on liability beyond the material warranty when you install the product. Your workmanship warranty covers the installation itself — not just the materials. This means:

• Structural failures due to incorrect framing are your liability
• Finish failures caused by incorrect preparation or application are your responsibility
• Follow published installation guidelines — this is your defense

Best Practices for Contractor Protection

1. Document everything: Photos before, during, and after installation
2. Use specified fasteners: Stainless steel per manufacturer requirements
3. Follow spacing requirements: Per published span tables
4. Provide clients with the warranty documents: Ensure they understand maintenance requirements
5. Note conditions at installation: Moisture content of boards, weather conditions
6. Keep material records: Lot numbers and invoices in case species questions arise

Commercial Projects

For commercial projects, warranty documentation may be required in the submittal package. Request official warranty letters from your supplier and include them in project closeout documents.

Contact our commercial team for commercial warranty documentation.

FAQ

Do natural color changes in Ipe void the warranty?

No — natural weathering, graying, and color variation are expected characteristics of all wood products, including Ipe. These are not warranty defects.

What's the warranty if my Ipe boards cup?

Minor cupping within published tolerances is typically considered normal wood movement, not a warranty defect. Significant cupping caused by installation over wet framing or improper acclimation is a workmanship issue, not a material defect.

How long are hardwood decking warranties typically?

This varies by supplier. Ask specifically about what's covered and for how long — and get it in writing.