RibCore hollow core polystyrene doors are an innovative alternative to traditional honeycomb cardboard hollow core doors. In the entry market, RibCore doors offer a significant advantage with a much higher glue-to-door-skin contact area – approximately 42% compared to just 4% in honeycomb core doors.

The greater glue contact makes the door stronger with substantially greater impact resistance and delamination prevention after impact. The polystyrene core also offers enhanced thermal insulation, helping to keep your home warmer in winter and cooler in summer.

Superior Doors’ Solid Core EPS doors represent industry-leading strength and durability. The combination of high-density solid core polystyrene with nearly 100% core-to-door-skin contact creates an incredibly durable yet lightweight and practical door.

Our Solid Core EPS doors also have excellent thermal insulative qualities with R-Values that easily exceed H1 building requirements anywhere in New Zealand.

Built with a solid Moisture Resistant Particle Board core
Engineered for stability and strength
Ideal for heavier duty applications or where a premium feel is needed
Performs well with acoustic requirements
Can be drilled or cut to accommodate vision panel

With a dense, moisture-resistant core, this door offers excellent impact resistance and long-term reliability perfect for both residential and commercial use.