To determine how much pool wall foam you need, you typically measure the circumference of your above-ground pool. However, pool wall foam is often sold in specific lengths tailored to common pool sizes.
Required Wall Foam for Common Round Pool Sizes
According to information from The Pool Factory, the amount of wall foam needed varies by the size of your pool. The required wall foam lengths and the recommended number of foam bond spray cans for installation are as follows:
| Pool Size | Wall Foam Size | Foam Bond Spray Cans |
|---|---|---|
| 15' Round | 60 Feet Long | 1 Spray Can |
| 18' Round | 60 Feet Long | 2 Spray Cans |
| 21' Round | 85 Feet Long | 2 Spray Cans |
| 24' Round | 85 Feet Long | 3 Spray Cans |
Source: Pool Installation Products – Wall Foam
Wall foam is used during pool liner installation to create a smooth wall surface, which helps protect the liner and provides a soft feel. The foam bond spray cans mentioned in the table are typically used to adhere the foam to the pool wall before the liner is installed.
When purchasing wall foam, it's important to select the size that corresponds to your pool's diameter to ensure you have enough material to cover the entire interior circumference of the wall.
