How we worked it out
Updated as you change the numbers.
- Bags = 150 sq ft ÷ coverage per bag, rounded up.
Method and assumptions
Typical 50 lb bags cover roughly 90 to 100 sq ft with a 1/4 in square notch, 60 to 75 sq ft with 1/4 × 3/8 in, and 40 to 50 sq ft with 1/2 in. Use your bag’s chart when you have it.
Questions
How many bags of thinset for 150 sq ft of 12 × 24 tile?
About 3 bags with a 1/4 × 3/8 in trowel, 3 with back-buttering too (2.6 rounded up).
Sources
Method and figures checked on . Every worked answer on this page is covered by an automated test. Found a mistake? Tell us.