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Measuring for Inground Pool Liners
Start with the measuring form that most closely matches your pool shape. Good measurements are what let us build the liner to your actual walls, floor, hopper, and shape details.
Video help
Watch the measuring overview
The written forms below are the source of truth, but these videos are useful before you start taking dimensions.
Common pool shapes
Choose your measuring form
These are the most common starting points for custom inground liner measurements.
Rectangle
Straight wall pools with square corners.
Open rectangle form
Grecian
Rectangle body with clipped or angled corners.
Open Grecian form
Round
Circular inground pool.
Open round form
Oval
Rounded ends with continuous curved walls.
Open oval form
Kidney
Curved pool with one inward sweep.
Open kidney form
Free-Form
Custom curved pool shape.
Open free-form form
L-shape, dogleg, and boomerang pools
Use the left or right form that matches the leg direction
If your pool turns or angles, pick the form with the closest layout. The form will guide which dimensions to collect.
True L Left
Right-angle layout with the leg on the left.
Open measuring form
True L Right
Right-angle layout with the leg on the right.
Open measuring form
Lazy L / Dogleg Left
For left-side angled L, dogleg, and boomerang-style layouts.
Open measuring form
Lazy L / Dogleg Right
For right-side angled L, dogleg, and boomerang-style layouts.
Open measuring form
Specialty shapes
Additional measuring resources
Hexagon and octagon forms open as PDFs. We can help review measurements if the layout is unusual.
Before you order
A few minutes with the right form saves time later
Since more homeowners are installing their own swimming pool liners, we keep the measuring process straightforward. The form helps you capture the dimensions needed to make a custom liner instead of guessing from a stock pattern.
Read the measuring tips and installation guide before you start. Good measurements can save time during installation and help the finished liner sit cleaner in the pool.
Ready to price the liner?
After you identify the shape and collect measurements, continue into the quote flow to choose pattern, thickness, and options.