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Thinset mortar coverage by brand and product

Coverage per bag for each thinset mortar we have checked, taken from the manufacturer's technical data sheet. Open a product to calculate bags for your own floor.

ARDEX ARDEX X 77 MICROTEC 40 lb bag · 55 sq ft per bag Custom Custom ProLite Premium 30 lb bag · 45–50 sq ft per bag Custom Custom VersaBond Professional 50 lb bag · 60–67 sq ft per bag Custom Custom VersaBond-LHT 50 lb bag · 42–47 sq ft per bag LATICRETE LATICRETE 253 Gold 50 lb bag · 60–70 sq ft per bag LATICRETE LATICRETE 254 Platinum 50 lb bag · 60–70 sq ft per bag LATICRETE LATICRETE 254 Platinum Plus 25 lb bag · 60–70 sq ft per bag MAPEI Mapei Keraflex Plus 44 lb bag · 38–45 sq ft per bag MAPEI Mapei Ultraflex 2 50 lb bag · 55–65 sq ft per bag MAPEI Mapei Ultraflex 2 LT 50 lb bag · 38–45 sq ft per bag

Side-by-side comparison

Coverage per bag by trowel notch. Last column: bags to buy for 100 sq ft plus 10% waste, at the trowel shown, using the low end of the coverage range.
ProductBagCoverage per bagBags for 100 sq ft
ARDEX X 77 MICROTEC
ARDEX		40 lb (18 kg)1/4" x 1/4" square notch: 110 sq ft
1/4" x 3/8" square notch: 82.5 sq ft
1/2" x 1/2" square notch: 55 sq ft		2 (1/2" x 1/2" square notch)
Custom ProLite Premium
CUSTOM Building Products		30 lb (13.6 kg)1/4" x 1/4" x 1/4" square notch: 90–100 sq ft
1/4" x 3/8" x 1/4" square notch: 63–70 sq ft
1/2" x 1/2" x 1/2" square notch (not recommended by CUSTOM): 45–50 sq ft
3/4" x 9/16" x 3/8" U-notch held at 30°: 45–50 sq ft
3/4" x 9/16" x 3/8" U-notch held at 45°: 36–40 sq ft		3 (3/4" x 9/16" x 3/8" U-notch held at 30°)
Custom VersaBond Professional
CUSTOM Building Products		50 lb (22.68 kg)1/4" x 1/4" x 1/4" square notch: 85–95 sq ft
1/4" x 3/8" x 1/4" square notch: 60–67 sq ft		2 (1/4" x 3/8" x 1/4" square notch)
Custom VersaBond-LHT
CUSTOM Building Products		50 lb (22.68 kg)1/4" x 1/4" x 1/4" square notch: 90–100 sq ft
1/4" x 3/8" x 1/4" square notch: 60–67 sq ft
1/2" x 1/2" x 1/2" square notch (not recommended by CUSTOM): 42–47 sq ft
3/4" x 9/16" x 3/8" U-notch held at 30°: 42–47 sq ft
3/4" x 9/16" x 3/8" U-notch held at 45°: 34–38 sq ft		3 (3/4" x 9/16" x 3/8" U-notch held at 30°)
LATICRETE 253 Gold
LATICRETE		50 lb (22.7 kg)1/4" x 1/4" notched trowel: 80–95 sq ft
1/4" x 3/8" notched trowel: 60–70 sq ft
1/4" x 3/16" notch, setting STRATA_MAT only: 110–120 sq ft		2 (1/4" x 3/8" notched trowel)
LATICRETE 254 Platinum
LATICRETE		50 lb (22.7 kg)1/4" x 1/4" notched trowel: 80–95 sq ft
1/4" x 3/8" notched trowel: 60–70 sq ft
1/2" x 1/2" notched trowel: 35–40 sq ft		2 (1/4" x 3/8" notched trowel)
LATICRETE 254 Platinum Plus
LATICRETE		25 lb (11.3 kg)1/4" x 1/4" notched trowel: 80–95 sq ft
1/4" x 3/8" notched trowel: 60–70 sq ft
1/2" x 1/2" notched trowel: 35–40 sq ft
1/4" x 3/16" notch, setting STRATA_MAT or HYDRO BAN Sheet Membrane only: 105–115 sq ft		2 (1/4" x 3/8" notched trowel)
Mapei Keraflex Plus
MAPEI		44 lb (20 kg)1/4" x 1/4" x 1/4" square notch: 75–90 sq ft
1/4" x 3/8" x 1/4" square notch: 55–65 sq ft
1/2" x 1/2" x 1/2" square notch: 38–45 sq ft
3/4" x 9/16" x 3/8" U-notch: 25–30 sq ft		3 (1/2" x 1/2" x 1/2" square notch)
Mapei Ultraflex 2
MAPEI		50 lb (22.7 kg)1/4" x 1/4" x 1/4" square notch: 75–90 sq ft
1/4" x 3/8" x 1/4" square notch: 55–65 sq ft		2 (1/4" x 3/8" x 1/4" square notch)
Mapei Ultraflex 2 LT
MAPEI		50 lb (22.7 kg)1/4" x 1/4" x 1/4" square notch: 75–90 sq ft
1/4" x 3/8" x 1/4" square notch: 55–65 sq ft
1/2" x 1/2" x 1/2" square notch: 38–45 sq ft
3/4" x 9/16" x 3/8" U-notch: 25–30 sq ft		3 (1/2" x 1/2" x 1/2" square notch)

10 products. Real coverage depends on the tile, the substrate and your technique; each product page explains how its numbers are worked out.

Sources