How to Use EPDs to Make Defensible Commercial Flooring Decisions

Environmental Product Declarations (EPDs) provide commercial and hospitality specifiers with third-party verified data to substantiate product choices across a defined life cycle. Rather than treating an EPD as a generic "green badge," sustainability leads, architects, and procurement teams must evaluate the underlying methodology, life-cycle boundaries, and verification details.

Key Takeaways for Specifiers

● EPDs are quantitative evidence, not green badges: An EPD quantifies specific environmental impacts across defined life-cycle stages.

● Verify life-cycle scope: Distinguish between production-only declarations (A1–A3) and full life-cycle scopes (A1–C4 + D).

● Match comparison metrics: Compare products only when Product Category Rules (PCR), system boundaries, and declared functional units match.

● Integrate evidence collection early: Gather EPDs during the design and bidding phases before project specifications and budgets lock.

An Environmental Product Declaration (EPD) delivers independent verification of environmental performance, but its validity depends on four critical technical pillars:

1. Impact Categories: Examine the complete set of impact indicators before evaluating individual headline numbers.

2. System Boundary: Identify which specific life-cycle stages are included in the study.

3. Declared Unit / Functional Basis: Confirm whether impacts are reported per square metre, per kilogram, or another unit.

4. Verification Record: Ensure the record contains an independent verifier name, verification date, registration number, and programme operator.

Reading an EPD Beyond the Headline Figures

1 Specifier Checklist for EPD Requests

A key step in evaluating flooring EPDs is identifying the life-cycle stages included in the declaration. An EPD limited to stages A1–A3 covers extraction, transport, and manufacturing. While A1–A3 provides a useful baseline, it does not describe product durability, cleaning, maintenance, or end-of-life disposal.

Understanding System Boundaries & Life-Cycle Stages

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Stage

Before placing two EPD figures side-by-side, verify that the measurement methodology aligns across both options. Comparing products with differing parameters creates invalid conclusions.

Steps to Align Functional Units

● Convert Units: Per-kilogram and per-square-metre figures cannot be directly compared; normalize them to the same installed area and intended service conditions.

● Include Accessories: Account for required adhesives, underlayment, and installation materials.

● Apply Annualized Screening: Annualized impact figures can serve as a screening aid for replacement cycles, but they do not replace matching scope and use conditions.

The Comparison Gate: Rules for Evaluating Two Products

3 Project Workflow: Integrating EPDs into Procurement

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Collecting environmental documentation at project closeout limits material choices and creates evidence gaps. Build EPD collection directly into early project milestones:

1. Design Phase: Gather verified EPDs while material specifications remain open.

2. Bidding Phase: Request registration numbers and identify missing data before awarding contracts.

3. Selection Phase: Document the PCR, system boundary, declared unit, and verification details.

4. Submission Phase: Verify current LEED, BREEAM, or WELL pathway requirements with the project sustainability lead before relying on declarations for credit points.

Moving from Standard EPDs to Order-Level Evidence

A1-A3

Production

Raw material extraction, transport to factory, and manufacturing.

A4-A5

Construction

Delivery to site and installation processes.

B1-B7

C1-C4 + D

Life-Cycle Phase

Use & Maintenance

End-of-Life & Beyond

What is Measures

Cleaning, maintenance, operational energy, and water use.

Demolition, waste processing, disposal, and benefits beyond the system boundary.

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Crucial Rule: Production-scope (A1–A3) data cannot be directly compared against a full-life scope when evaluating total lifecycle impacts.

Standard product EPDs provide a baseline reference across average manufacturing conditions. For precise project reporting, specifiers can request project-specific order data.

● Standard EPD: Useful for initial screening and like-for-like product review.

● Actual Project Order Data: Measures exact order quantities, energy inputs, recycled content, and waste diversion rates where supporting methodologies exist.

● Verification Precaution: Supplier claims regarding specific environmental metrics (e.g., plastic bottle diversion in carpet tile backings) require supporting calculations and verification methodologies before inclusion in official reporting.

Use this checklist during supplier evaluations to maintain a traceable evidence trail:

1. Request Documentation: Obtain the official EPD alongside its traceable registration number and programme operator details.

2. Record Comparison Basis: Note the PCR, stage coverage (A1–A3 vs full life), declared unit, service life, and included installation accessories.

3. Request Project-Level Data: Ask for project-specific calculations for exact quantities, recycled content, or diversion metrics.

4. Identify Method Gaps: Highlight any discrepancies in scope or functional units to the project sustainability consultant before locking specifications.

Frequently Asked Questions (FAQ)

An A1–A3 EPD covers raw material extraction, transport, and manufacturing (cradle-to-gate). An A1–C4 EPD covers the entire life cycle, including delivery, installation, use, cleaning, maintenance, and end-of-life disposal (cradle-to-grave).
No. Products declared per kilogram cannot be compared directly to products declared per square metre. Both options must be normalized to a common installed area and identical service conditions.
No. An EPD provides verified evidence, but rating systems require project teams to meet specific credit criteria and verify current scheme rules during the submission phase.
Start building a verifiable evidence trail for your commercial or hospitality project. Request an EPD packet or project-specific calculation for shortlisted EcoSoft® and EcoSoft x® products by contacting Carpets Inter for a consultation.