Robelle 20 x 40 ft Heavy-Duty Super Winter Pool Cover for Inground Pools — Solid, Tear-Resistant

Robelle's 20 x 40 ft Heavy Duty Super Winter Pool Cover is a solid, extra-durable winter cover engineered to protect inground pools from snow, ice and debris during the off-season.

This heavy-duty winter cover is a solid polyethylene sheet woven with an 8 x 8 scrim and built 18% heavier than industry standard to resist tears and hold up under winter conditions. The cover's imperial blue topside with a black underside provides a durable barrier that does not allow water through its fabric, and an included five-foot overlap simplifies installation and helps keep the cover seated. Designed for seasonal use only, this Robelle cover is sized for a 20 x 40 ft pool but includes material beyond the pool perimeter for overlap and water-weight installation.

How does this cover stand up to winter weather?

The Robelle Super Winter Cover combines heavier polyethylene and a dense scrim to resist punctures and stretching from ice, snow, and debris. It is a solid cover, so rain and melted snow won’t pass through into the pool water.

• Material weight: 2.36 oz./yd² (approx. 80 g/m²) for added toughness.
• Scrim: 8 x 8 woven threads per square inch to increase tear resistance.
• Solid construction blocks water and fine debris from entering the pool.
• Designed to float loosely on the water surface to reduce stress on seams.

What size should I order and how does overlap work?

Order the cover by your pool’s nominal dimensions (20 x 40 ft). Robelle adds a five-foot overlap around the pool, so the delivered cover measures 25 x 45 ft overall. If your pool has steps, built-in seats, or other protrusions, choose the next larger size to ensure adequate coverage and a proper float.

• Listed pool size: 20 x 40 ft; included overlap makes cover 25 x 45 ft.
• Five-foot overlap simplifies draping and water-weight placement.
• Choose a larger size when steps or irregular shapes extend beyond the pool edge.
• Fold any excess deck material under water weights to avoid trips and wear.

How is the cover installed and secured?

Installation uses vinyl water weights threaded through perimeter loops; these are the only recommended fastening method. The loops around the cover perimeter accept water tubes (sold separately), allowing the cover to float and stay in place without adhesives or anchors that could damage decking or the fabric.

• Perimeter loops are sewn in for water-weight installation only.
• Water tubes hold the cover down while allowing it to float with water level changes.
• Avoid other restraint methods—no anchors, no stakes recommended.
• Pad exposed edges near corners or decking to prevent abrasion.

What warranty and long-term benefits does Robelle provide?

Robelle supports this Heavy Duty Super Winter Pool Cover with industry-focused design and a 10-year warranty, reflecting the brand’s decades of pool-cover experience. The heavier material and robust scrim aim to deliver season-after-season protection when used as intended during the off-season.

• Constructed 18% heavier than common alternatives for longer life.
• Backed by a 10-year Robelle warranty for manufacturing defects.
• Designed by pool experts with over 50 years in the industry.
• Intended for winter, off-season coverage—not for regular debris control during swim season.

Who is this for: Pool owners with 20 x 40 ft inground pools who need a robust, solid winter cover that resists snow, ice and wear. It’s a good choice if you want more overlap for easier installation, prefer water-weighted fastening, and expect dependable off-season protection backed by a long warranty. If your pool has nonstandard protrusions, steps, or seating, consider ordering the next size up to ensure full, safe coverage.