Boao 18 ft Pool Liner Pad — Precut PVC Underlay for 18' Above-Ground Pools, Waterproof Shock-Absorbing Protects Liner

Setting up an above-ground pool on uneven or rough ground exposes the vinyl liner to sharp stones, roots and abrasion. The Boao 18 ft Pool Liner Pad places a waterproof, wear-resistant layer between the earth and your pool base to create a cleaner, more even surface and help prolong the life of your pool. It’s precut for 18-foot round pools so you can install it quickly without trimming or joining pieces.

How does this pad protect my pool liner?

The pad acts as a barrier and shock absorber, isolating the pool vinyl from direct contact with the ground. Its PVC composition resists tearing and helps spread pressure across the bottom instead of focusing it on weak points in the liner.

• Thick, flexible PVC reduces sharp-object penetration and scuffs.
• Waterproof surface keeps moisture and dirt from migrating under the liner.
• Even base reduces stress points that cause premature liner wear.

Will the pad fit my 18-foot round pool and how easy is installation?

This liner pad is precut to the diameter of an 18 ft round above-ground pool so it fits without extra cutting or sewing. Installation is straightforward: position the pad on a cleared level area, center the pool over it, and smooth the pad before adding the pool liner and water.

• Precut shape eliminates measuring and edge finishing.
• Lightweight enough for one or two people to position easily.
• Lay-flat material minimizes wrinkles for faster setup.

What material is it made from and how durable is it outdoors?

The pad is manufactured from PVC designed to withstand sun exposure, abrasion and regular outdoor use. The formulation balances softness—so it cushions the liner—with wear resistance to reduce accidental rips and performance loss over seasons.

• Sun-resistant PVC reduces UV degradation compared with untreated fabrics.
• Soft surface protects the liner while resisting tears from rough ground.
• Easy to clean—brush or hose off debris before pool setup.

Can I use this tarp for other outdoor purposes?

Yes. While made to protect above-ground pool liners, the pad is versatile for other outdoor tasks such as under tents, covering gear, or protecting boats and vehicles from vapor and dust. Its waterproof, durable nature makes it a handy multi-use ground cloth.

• Campsite underlay for tents to add cushioning and moisture resistance.
• Temporary cover for boats, grills or garden furniture.
• Packing-layer to separate and protect items during storage or transport.

Who is this for? Homeowners with an 18-foot round above-ground pool who want a straightforward, quick-to-install underlay to protect the liner and improve longevity will appreciate this product. It also suits campers, seasonal storage needs, and anyone seeking a waterproof, wear-resistant ground cloth for multiple outdoor uses. If you need an easy, maintenance-light solution to keep the pool base clean, evenly supported and better protected against punctures, the Boao 18 ft Pool Liner Pad is a practical choice.