Inground Pool Liners & Vinyl Patterns

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Inground pool liners provide the finished interior surface that defines both the appearance and watertight seal of a vinyl pool. This category includes new and replacement vinyl liners designed for compatibility with a wide range of inground pool shapes and layouts, and is part of our complete pool liners selection covering every pool type. Every liner is custom made from your pool's measurements, so the selection below shows patterns rather than prices; use the Liner Patterns & Pricing tool to see pricing. Liners can be made for vinyl liner pools of any shape, from rectangle and kidney layouts to lagoon and freeform designs. Proper installation is commonly supported by compatible liner accessories. For replacement projects, accurate sizing is critical, and many homeowners reference liner measuring guidance before ordering.

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What to Know Before Choosing an Inground Pool Liner

Measure for a Precise Replacement Fit

An inground pool liner needs to fit the pool as it exists today, not simply match its original plans. Pool dimensions can differ from the original design after construction, so replacement liners should be ordered from current measurements. Pool shape, length, width, depth changes, corners, floor contours, and vinyl-covered steps can all affect the finished fit. Accurate measurements are especially important for custom and freeform pools, where small differences can make installation more difficult.

Compare Pattern, Color & Liner Thickness

Pattern, color, thickness, and pool shape should all be considered when choosing a pool liner. Pattern and color have a major effect on how the finished pool looks, while liner thickness affects flexibility and resistance to wear. Many patterns pair a tile border along the top of the wall with a printed wall and floor, while full print liners skip the border and use one print throughout. Some liners also combine different wall and floor specifications, such as a 27 mil wall with a 20 mil floor, and a few pair two different prints. A thicker vinyl liner is not automatically the better choice for every pool. Proper fit also matters, particularly around corners, steps, and more complex contours.

How Ordering a Custom Inground Liner Works

Choose a pattern from the selection above, then open the Liner Patterns & Pricing tool to see pricing. Each inground liner is made to order from your liner measurement form, and processing begins once those measurements are submitted. Incomplete or unclear measurements can delay the order. Because the customer is responsible for the liner specifications and vinyl liners are non-refundable and cannot be returned, every measurement is worth checking twice before it is sent.

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Inground Pool Liners FAQs

Can a damaged inground pool liner be repaired, or does it need replacing?

It depends on the damage. Small punctures and short tears can often be patched when the surrounding vinyl is still in good condition, as our guide to pool liner repair explains. A large tear, seam separation, recurring leaks, permanent staining, or stiff and brittle vinyl are common signs it is time to replace a pool liner. Do not fully drain an inground vinyl pool for liner work without guidance, because the liner can shift or float.

How do I measure my pool for a replacement inground liner?

Measure from the pool floor to the bead receiver, not to the coping or the top of the deck. Record every measurement in feet and inches, rounding up to the nearest quarter inch, and write clearly, since a misread number can produce a liner that does not fit. Pools with vinyl-covered steps need a separate steps form in addition to the main liner form, and any missing field can delay the quote and the order.

Can I get a liner for a Grecian, freeform, or other custom-shaped pool?

Yes. Inground liners are custom made, so a liner can be built for nearly any pool once the measurements are completed and verified. Royal Swimming Pools provides separate measuring forms for shapes including rectangle, oval, Roman, Grecian, and freeform. Choosing the form that matches your pool helps capture its corners, radius points, and depth changes correctly.

Is a 20 mil or 27 mil pool liner better?

Neither thickness is automatically better for every inground pool. When comparing pool liner thickness, consider flexibility, pool shape, installation conditions, and pattern preference rather than choosing based on thickness alone. A 20 mil liner is more flexible and can be easier to fit around corners and complex shapes, while thicker vinyl provides additional resistance to punctures but can be less flexible during installation.

What should I know about an inground pool liner warranty?

Warranty coverage depends on the liner manufacturer and the terms supplied with the liner. It is important to understand your pool liner warranty coverage, including any documentation requirements and prorated terms that may apply. Seam separation may be covered under manufacturer warranties, while the exact claim requirements should be confirmed from the warranty information supplied with the liner.