Poolergetic 18-Foot Round Above-Ground Pool Liner Pad — Black Felt Cushion, Puncture & Weed Barrier

Poolergetic's 18-foot round above-ground pool liner pad is a heavy-duty felt underlay that cushions the pool base, blocks weeds, and prevents punctures to extend your liner's life.

This pre-cut round pad fits an 18-foot above-ground pool and creates a protective, insulating layer between the pool liner and the ground. Made from dense felt material, it reduces abrasion from stones, roots, and debris while providing a soft, heat-resistant surface underfoot. The pad is easy to position and trim, and it doubles as a simple weed barrier and corrosion-reducing cushion under metal pool frames.

How does this pad protect my pool liner from punctures?

The felt construction offers a thick, tack-resistant barrier that prevents sharp objects in the soil from contacting your vinyl liner. It distributes pressure more evenly across the pool floor and reduces pinpoint wear from rocks, glass, or roots.

• High-density felt resists tears and abrasion.
• Covers ground irregularities to prevent focused pressure points.
• Limits direct contact between metal pool parts and the liner.

Will the pad help with ground heat and comfort on hot days?

The pad's soft, smooth surface offers modest heat insulation so the liner and feet stay cooler than bare ground or hot concrete. It creates a small thermal break and a cushioned surface for a more comfortable swim entry and floor feel.

• Soft surface reduces hot-floor contact with bare feet.
• Insulating felt moderates temperature transfer from soil or pavement.
• Provides a gentler underfoot texture than bare ground or rock.

How easy is it to install and size for my pool?

The pad ships pre-cut for an 18-foot round pool so most installs require only simple placement beneath the liner. If adjustments are needed, the felt trims cleanly with scissors for an exact fit around supports and edges.

• Pre-cut round shape fits most 18-foot above-ground pools.
• Trim with household scissors for perfect edge alignment.
• Lay flat, center under the liner, and smooth before filling.

Can this pad prevent weeds and protect metal parts?

Yes—its dense felt acts as a basic weed barrier that limits vegetation from growing up into the pool base. By separating metal components from direct soil contact, it also helps slow processes that can accelerate corrosion at contact points.

• Blocks most seedlings and surface weeds from reaching the liner.
• Reduces soil-to-metal contact for less direct moisture exposure.
• Serves as a stable cushion under support legs and frames.

Who this is for: Poolergetic's 18-foot round liner pad is intended for owners of 18-foot above-ground pools who want a straightforward, no-fuss underlayment to protect their vinyl liner and create a more comfortable pool floor. It's a good fit for installations over grass, gravel, dirt, or concrete where added puncture resistance, minor insulation, and a simple weed barrier are desired. If you need heavy-duty vapor barriers or structural base work for uneven terrain, combine this pad with additional ground preparation products.