Choosing the Right Cavity Unit: Good, Better, Best 

When planning your next project, choosing the right cavity unit can make all the difference to both functionality and finish. In choosing cavity units it’s important to consider the size and weight of your doors – are you installing a single cavity slider, or a double door system? Is a soft closer required? You should also take into account the location of the cavity, particularly in wet or tiled areas where traditional timber cavities may not be suitable. At NHS, we offer a comprehensive range of solutions, from standard timber cavity units to advanced moisture resistant options designed for more demanding spaces. 

	GOOD: Evolution Timber Cavity Unit Made from durable pine for strength and reliability.   Features a 4-wheel ball bearing carriage for smooth operation. Supports doors up to 70kg. Perfect for maximizing space by sliding into a wall pocket instead of swinging open. Ideal for standard internal applications.
	BETTER: Evolution Steel Cavity Unit – The Aspire Galvanized steel construction for added strength and durability. Ideal for wet areas and tiled walls, where timber may not be suitable. Supports doors up to 70kg.   Conveniently stocked in 720x90mm & 820x90mm sizes at Beresfield and Cardiff. Other sizes (except 770x90mm) available made-to-order in approx. 10 working days.
	BEST: Gal Sealed Evolution Cavity Unit Engineered for moisture-prone environments and heavy-duty applications.   Features innovative recessed closing jamb and smart slat placement.   Designed to save installation time with simplified cutting and customization options.   Perfect for projects demanding premium performance and longevity.

Upgrade Options - 

• Soft Close System: Enjoy smooth, gentle door operation with a soft-close mechanism - available for new or existing Evolution cavity units.
• Evolution Touch - holds door inside the cavity and releases with a simple touch.
• Rediset square set reveals

Why It Matters

With modern living standards introducing heavier doors, larger tiles, and increased wall loads, choosing the right cavity unit is critical. NHS stocks timber Evolution cavities as standard, but we also offer the steel cavity units from Hume for added strength and compatibility with our extensive door range. Come visit us in-store or contact us on 4979 0000 to talk more about ordering cavity units from NHS today.