Flooring Transition & T-Molding Estimator
Calculate how many transition molding strips (T-molding, reducers, end caps) you need for single and double doorway openings with cut optimization.
Calculated Results
Frequently Asked Questions
What is the difference between T-molding and a reducer transition?
T-molding bridges two adjoining floors that are at the exact same elevation (such as luxury vinyl plank meeting identical tile). A reducer transition slopes gradually downward to join a higher floor (e.g. 3/4" hardwood or tile) to a lower floor (e.g. 5mm vinyl plank or concrete).
Why are transition moldings necessary in large rooms?
Floating vinyl plank and laminate floors expand and contract with temperature and humidity changes. Manufacturer warranties mandate expansion breaks every 30 to 40 linear feet and in doorways under 4 feet wide to prevent buckling and peaking joints.
Can you glue transition moldings directly to floating flooring?
Never glue transition moldings directly to floating floor planks. Doing so pinches the floor, preventing natural expansion and causing planks to buckle. Always glue or screw the mounting track to the subfloor beneath.
How many doorway cuts can you get out of one 78-inch transition piece?
A standard 78-inch piece yields exactly two 36-inch standard doorway cuts with 6 inches of trim waste.