- Remove the old floor register if necessary. Slide your finger under the edge and pull up on the register slowly to remove it.
- Measure the inside length and width of the vent opening with a tape measure. Write down these measurements.
- Write down the direction of current floor register vents. For example, 45-degree right or left helps you remember which register to purchase as a replacement.
How to Measure for Floor Registers
Floor registers are the metal or wood grills that sit atop the heating and air conditioning duct work in your home. The registers direct airflow when you heat or cool your home according to the angles of the vent in the register. You can always change the floor register to add a different style to your home's décor or adjust the direct of the airflow. Prior to swapping out the register, you will need to take a basic measurement so you have accurate information when shopping.