For thinner layers and a seamless feather edge; optimal for wood floors (movement/vibration).

LEVELINE 45 is a calcium aluminate based, self-curing, self-leveling floor underlayment that is used to create a level, flat and durable surface prior to the installation of finished floor coverings. Mixed with water only, it can be installed from feather edge up to 1 ½” (3.8 cm) neat and up to 5” (13 cm) extended with aggregate. LEVELINE 45 provides a substrate which can accept ceramic tile and natural stone within 3-4 hours after application. Finished floor coverings such as carpet, VCT, vinyl sheet goods, rubber, epoxy, and engineered wood plank can be installed in as little as 24 hours.

Fail Safe

Ensure a successful installation with our Fail Safe quality assurance tool.



Optimal underlayment for wood floors (movement/vibration)

Excellent bond to virtually any substrate

Install from feather edge up to 1 ½”

Ready for flooring after 3-4 hours


Material Calculator Material Calculator


Extended: For thicknesses of 1.5" to 5"
30% pea gravel by weight (15lb pea gravel per 50lb bag)

Disclaimer: Designed for thickness range of 0.125" to 1.5" Neat. For applications greater than 1.5" LEVELINE 45 can be extended up to 5". These calculations are approximations only and do not take into account waste and variations in job site conditions or application.

Related Projects