Washroom Cubicle Materials Explained: SGL vs MFC

Solid Grade Laminate (SGL) or Melamine Faced Chipboard (MFC)?

Choosing the right material for your washroom cubicles is one of the most important decisions when planning a commercial washroom project.

Whether you're specifying new toilet cubicles for a school, office, leisure facility or public building, the material you choose will influence durability, maintenance requirements and long-term value.

Two of the most common materials used in modern cubicle systems are Solid Grade Laminate (SGL) and Melamine Faced Chipboard (MFC). Both are widely used throughout the UK, but each is designed for different environments and budgets.

In this guide, we'll explain the key differences between SGL and MFC to help you determine which option is best suited to your project.

What Is 12mm Solid Grade Laminate (SGL)?

Solid Grade Laminate (SGL), also known as compact grade laminate, is made by compressing layers of resin-impregnated kraft paper under high pressure and heat.

This creates a dense, solid 12mm panel that is exceptionally strong and highly resistant to moisture. Because SGL is solid all the way through, it stands up well to heavy use and challenging environments.

SGL is commonly used in:

• Schools and colleges

• Healthcare facilities

• Leisure centres

• Swimming pools

• Transport hubs

• Sports venues

• Public buildings

  
  

Benefits of SGL Cubicles:

• Excellent durability

• High moisture resistance

• Suitable for wet environments

• Strong resistance to knocks and impact damage

• Long service life

• Easy to clean and maintain

If your washrooms experience heavy daily use, SGL is often the best long-term choice.

What Is 19mm Moisture Resistant MFC?

Moisture Resistant Melamine Faced Chipboard (MR MFC) has a 19mm moisture resistant chipboard core with decorative melamine surfaces on both sides.

These surfaces are made using decorative papers, giving the panels their colour, texture and finish. The melamine surface is water-resistant and performs well in everyday washroom environments.

MR MFC is widely used for toilet cubicle installations because it offers an excellent balance of appearance, durability and affordability.

Benefits of MR MFC Cubicles

• More cost-effective than SGL

• Strong 19mm construction

• Moisture-resistant core

• Water-resistant melamine surface

• Wide choice of colours and finishes

• Easy to install

• Suitable for most commercial washrooms

If you're working to a budget and the cubicles won't be exposed to constant water, MR MFC is an excellent option.

12mm SGL vs 19mm MR MFC

Feature	12mm SGL	19mm MR MFC
Best for	Wet and high-traffic areas	Standard commercial washrooms
Moisture performance	Excellent	Moisture resistant with a water resistant surface
Durability	Excellent	Very good
Initial cost	Higher	Lower
Long-term value	Excellent in demanding environments	Excellent for budget-conscious projects

Which Material Is More Durable?

If durability is your top priority, SGL has the advantage.

Although MR MFC is thicker at 19mm, SGL is a solid laminate panel. This makes it more resistant to knocks, scratches and everyday wear.

In busy locations, such as schools or public buildings, that extra durability can reduce repairs and extend the life of the cubicles.

For example, a secondary school washroom may be used hundreds of times every day. In this type of environment, SGL is more likely to withstand years of heavy use.

Which Material Handles Moisture Better?

Both materials are designed for commercial washrooms, but they perform differently when exposed to moisture.

MR MFC has a moisture-resistant core and a water-resistant melamine surface. It performs well in everyday washrooms where humidity and occasional splashes are expected.

However, it is not designed for constant contact with water. If moisture enters through damaged edges or surfaces, the chipboard core may eventually swell.

SGL offers a much higher level of moisture resistance. It can cope with humidity, regular cleaning and frequent water exposure without affecting its strength.

That makes SGL the preferred choice for:

• Swimming pools

• Leisure centres

• Changing rooms

• Shower areas

• Other wet environments

For these applications, many architects and specifiers choose SGL because it offers greater reliability and lower maintenance over time.

Appearance

Both materials are available in a wide range of colours, textures and finishes, making it easy to choose a cubicle range that complements the rest of your washroom design.

Whether you're designing a modern office washroom or refurbishing a school, both materials offer plenty of design flexibility.

For most projects, appearance alone is unlikely to determine your choice.

Maintenance

Commercial washrooms need surfaces that are hygienic and easy to clean.

SGL has a dense, non-porous surface that resists stains, cleaning products and everyday wear. It stays looking good with minimal maintenance.

MR MFC is also easy to clean. However, it's important to avoid damaging exposed edges and to prevent prolonged contact with standing water.

Cost

MR MFC is usually the more affordable option.

Its lower purchase price makes it a popular choice for offices and other commercial washrooms where constant water exposure is unlikely.

SGL costs more initially, but its longer lifespan and lower maintenance requirements often make it better value over time.

Which Material Offers Better Long-Term Value?

Looking beyond the purchase price often gives a clearer picture.

MR MFC keeps initial costs down and works well in many commercial washrooms.

SGL usually delivers better value in demanding environments because it resists moisture, impact damage and everyday wear. Over time, that can mean fewer repairs and less frequent replacement.

For busy schools, leisure centres and public buildings, the higher upfront cost is often offset by lower maintenance costs.

Which Material Should You Choose?

Choose SGL if:

• Your washroom experiences heavy daily use

• The cubicles will be installed in wet areas

• Durability is a priority

• Long-term value matters

• You want the highest level of moisture resistance

• You want a wide choice of colours and finishes

SGL is particularly well suited to swimming pools, leisure centres, schools and public buildings.

Choose MR MFC if:

• Budget is an important factor

• The washroom is a standard commercial environment

• The cubicles won't be exposed to constant water

• You need a practical, cost-effective solution

MR MFC remains one of the UK's most popular materials for office and commercial toilet cubicle installations.

Frequently Asked Questions

Is SGL waterproof?

SGL is highly water resistant and is specifically designed for wet and high-humidity environments such as swimming pools, leisure centres and changing rooms.

Are MR MFC cubicles suitable for schools?

Yes. MR MFC is suitable for many school washrooms. However, for particularly busy schools or areas exposed to heavy wear and frequent moisture, SGL is often the better option.

Which material lasts longer?

SGL generally lasts longer because its solid construction resists moisture, impact damage and everyday wear. MR MFC also provides a long service life when installed in the right environment and maintained correctly.

Are SGL cubicles worth the extra cost?

For busy washrooms and wet areas, many organisations find that the longer lifespan and lower maintenance costs justify the higher initial investment.

Which material is best for leisure centres and swimming pools?

SGL is widely regarded as the best choice for leisure centres, swimming pools and other wet environments because it performs well where moisture exposure is high.

Final Thoughts

Both 12mm Solid Grade Laminate (SGL) and 19mm Moisture Resistant Melamine Faced Chipboard (MR MFC) have an important place in modern washroom cubicle systems.

The best choice depends on your budget, the environment and how heavily the washroom will be used.

If you're specifying cubicles for swimming pools, leisure centres or other wet environments, SGL offers outstanding durability, moisture resistance and long-term value.

For offices and standard commercial washrooms, MR MFC provides an attractive, durable and cost-effective alternative.

If you're unsure which material is right for your project, the team at Cubicle Works can help you choose the most suitable cubicle system for your environment, budget and performance requirements.