15 lb Heat Stop Premix (Beige)
High‑temperature refractory mortar used for firebrick installation in masonry fireplaces, fire pits, and flue systems. Rated for extreme heat and long‑term durability.
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Concrete Calculation Disclaimer:
Calculations provided by this tool are for estimation purposes only. Actual yardage may vary due to site conditions, such as uneven subgrade or bulging forms. To ensure you have enough material, it's recommended to add an additional 1/4 to 1 cubic yard to the calculator results. Depending on the subgrade's levelness, larger pours of 20 yards or more may require up to 10% additional.