The 150 sq ft DITRA roll is the mid-size option — right for larger bathrooms, open kitchens, and multi-room renovations where the 54 sq ft roll runs short but a full contractor roll is overkill. Better cost per square foot than the small roll, less waste than the large one.

• 1/8" (3.5mm) polyethylene uncoupling membrane — same dovetail cavity system that locks into thin-set mortar, preventing tile cracks from subfloor movement
• 33" wide x 45.9' long (150 sq ft) — four-in-one layer handles uncoupling, waterproofing, vapour management, and load distribution
• Install over plywood (min 5/8" exterior grade) or concrete with unmodified thin-set mortar

Pro tip: Calculate your actual tile area before ordering. A 150 sq ft roll covers a typical 10x12 bathroom floor with enough left over for the hallway outside the door.