CGL vs MFC Toilet Cubicles: Which Is Right for Your Washroom?

Introduction

CGL and MFC are the two most commonly specified cubicle materials in the UK. The choice between them is primarily driven by the environment — but many specifiers default to MFC without considering whether CGL is the more appropriate choice. This guide gives you a definitive comparison.

What is MFC?

MFC — Melamine Faced Chipboard — is a chipboard core surfaced with a melamine laminate. It is the standard material for dry commercial washrooms: offices, retail, dry school environments. It is cost-effective, available in a wide range of colours and finishes, and performs well where moisture is not a factor.

What is CGL?

CGL — Compact Grade Laminate, also called Solid Grade Laminate (SGL) — is a solid-core laminate with no chipboard substrate. It is the same material all the way through. This gives it fundamentally different properties to MFC: it cannot delaminate, swell or rot because there is no core to absorb moisture.

The Critical Difference: Moisture

The most important difference between MFC and CGL is how they respond to moisture. MFC is vulnerable to moisture — chipboard absorbs water rapidly, and once moisture penetrates, swelling and delamination are inevitable. CGL is unaffected by moisture, including direct water contact, steam and high humidity. This makes CGL the only appropriate choice for wet areas.

When to Use MFC

Use MFC where: the environment is dry and well-ventilated; there is no risk of splashing, standing water or persistent high humidity; the installation is in an office, dry school washroom, retail or similar dry commercial environment; and cost is a primary driver alongside quality.

When to Specify CGL

Specify CGL where: the environment is wet or highly humid; the installation is pool-side, in a leisure centre, holiday park, outdoor washroom or sports changing room; hygiene is a priority (healthcare, food preparation areas); heavy use and commercial cleaning regimes are expected; or long-term durability in demanding conditions is required.

Cost Comparison

CGL typically costs more than MFC. However, the total cost of ownership must be considered. MFC installed in a wet environment may need replacing within 3–5 years. CGL in the same environment should last 15–20 years or more. For any wet or high-humidity environment, CGL is the economically correct specification.

Conclusion

The choice between CGL and MFC is straightforward once you understand the environment. Dry internal: specify MFC. Wet or humid: specify CGL. If you are uncertain about which material is right for your project, contact Bridgewater Direct for free advice.