Materials
Why Ridgeclad builds in compact grade laminate, and when HPL is the right spec.
Commercial washroom partitions are specified in one of two materials: compact grade laminate (CGL) or high-pressure laminate (HPL). Ridgeclad builds in CGL for about ninety percent of what we ship. Here is why, and where HPL is still the right call.
CGL, compact grade laminate
Compact grade laminate, also sold as compact laminate or solid phenolic, is a single solid panel of resin-impregnated kraft paper pressed under high heat and pressure. No decorative skin on a substrate; the panel is one continuous material from face to face. Three names, one hero material.
Because CGL is fully resin-bonded and dimensionally stable, it stays flat and true under sustained moisture, aggressive cleaning chemistry, and repeated impact. It is specified across offices, schools, healthcare, hospitality, high-traffic public interiors, and any environment where showers, pools, or standing water are part of daily use. The same panel handles all of them.
CGL typically costs more than HPL on a per-panel basis. For commercial washrooms where the panel is expected to outlast two or three finish cycles on the surrounding walls, that premium pays itself back in decades of service life.
HPL, high-pressure laminate
Also sold as plastic laminate. HPL is a decorative laminate surface bonded under high pressure to a structural core. It is tough, graffiti-resistant, and available in hundreds of finishes, but the surface and core are two layers, not one.
HPL is the right specification when the project is dry-environment and the budget is tight. Offices, schools, and retail washrooms that are not taking water spray or aggressive chemistry can run HPL for decades without issue.
We carry HPL as a cost-conscious alternative to CGL, for specifications where the environment is moderate and the budget matters. For every other environment, we recommend CGL.
Side-by-side
| CGL | HPL | |
|---|---|---|
| Also called | Compact laminate, solid phenolic | Plastic laminate |
| Construction | Solid resin-and-kraft panel | Laminate surface on structural core |
| Water performance | Full panel, unaffected by sustained moisture | Surface resistant; specify for dry environments |
| Design range | Extensive; hundreds of finishes | Widest in category |
| Impact and graffiti resistance | Through the panel | Surface only |
| Relative price | Our default | Lower than CGL |
| Best for | Every commercial washroom Ridgeclad specs | Dry-environment projects where cost is primary constraint |
How Ridgeclad specifies
About ninety percent of Ridgeclad installations ship in compact grade laminate. It is our default for cubicles, urinal screens, lockers, benches, and table tops across schools, offices, hospitals, hospitality, aquatic facilities, and high-traffic public interiors.
We carry HPL as a ten-percent sub-line for budget-constrained specifications in dry environments. If the project brief names a cost ceiling that rules out CGL, we will quote HPL and be clear about the tradeoff.
If a spec calls for solid phenolic, compact laminate, or CGL, all three name the same material: our default. Call us, and we will confirm the right panel for the environment before a drawing is cut.