Should carpet always use underlay and what's better, AirStep or Dunlop for rubber underlay?

Underlay is generally recommended for most carpet installations because it adds comfort, improves thermal insulation, reduces noise, and helps protect the carpet pile from wear. It can also help manage moisture in areas where dampness is a concern. Carpet Sydney’s underlay guidance emphasises choosing based on room use, moisture exposure, thickness, and budget. Rubber underlays, including common options such as AirStep and Dunlop, can offer durability and good acoustic performance, but the benefits depend on the product’s density, thickness, and the specific room conditions. There isn’t a universal 'better' choice; the right option depends on priorities (comfort vs. durability), foot traffic, and moisture risk. We can’t confirm current stock, warranty or exact specifications here. For a practical decision, compare the total installed cost (carpet, underlay, installation) and request samples to assess feel and sound in your space before buying. If you’d like a space-specific recommendation, please contact Carpet Sydney showroom team to confirm which AirStep or Dunlop underlays are currently available and best suited to your space. For more guidance, you can review the Underlay category on this site and the related durability and installation considerations before your showroom visit. Please confirm with Carpet Sydney showroom team for current availability and exact specs on AirStep and Dunlop underlays.