Start with what you’re covering or protecting, then measure carefully.

1. Measure diameter: For a round pool or patio set, measure edge-to-edge across the center.
2. Add allowance: For covering items, consider 6–12 inches of extra coverage for overhang and tie-downs.
3. Match shape: Verify the product is a round tarp (not square) in the listing details.
4. Check specs: Many options list diameters (e.g., 8–21 ft) or mil thickness for durability.
5. When in doubt: Choosing the next size up can provide helpful overlap.

On Walmart, you can review dimensions and features (like UV resistant or heavy duty) in the item description and use filters to narrow your search.

The best material depends on how you’ll use it.

• Poly tarps: Typically lightweight, waterproof, and UV resistant. Great for general covers, camping, and weather protection.
• Canvas tarps: Often 10–12 oz, durable and more breathable, which can help reduce condensation. Generally water-resistant rather than fully waterproof.
• Vinyl/PVC tarps: Sturdy and water-blocking; clear options offer visibility while helping shield from wind and rain.
• Shade cloth/mesh: Designed for sun control and airflow; not waterproof but helpful for pergolas and garden areas.

Match the material to your task—pool ground cloths benefit from tough, puncture-resistant layers, while canopies and patios may prefer shade cloth. Review specs on each Walmart listing to confirm fit and features.

A careful setup can help reduce punctures and wear.

1. Prepare the site: Remove rocks, sticks, and sharp debris. Aim for a smooth, level surface.
2. Unfold and center: Lay the round tarp flat, centered under the pool area.
3. Smooth wrinkles: Gently pull out creases so the ground cloth lies evenly.
4. Allow perimeter: A slight overhang can help protect edges from friction.
5. Secure without punctures: If needed, use weights or smooth landscape edging rather than stakes through the material.

Always compare with your pool manufacturer’s guidance and the product’s instructions. Features like puncture-resistant construction and reinforced edges can be helpful, but results vary by site conditions.

Gentle care can help a tarp last longer.

1. Rinse first: Hose off dirt and debris.
2. Mild soap: Use a soft brush and diluted soap; avoid harsh chemicals that may affect waterproof coatings.
3. Air dry fully: Drying before storage helps reduce mildew risk.
4. Fold loosely: Follow seams and avoid sharp creases to limit stress on reinforced edges.
5. Cool, dry storage: Keep off the floor and out of direct sunlight.
6. Inspect and repair: Check grommets and corners; consider tarp repair tape for minor tears.

Cleaning methods can vary by material (poly, canvas, vinyl), so it’s a good idea to review care details in the product description.

Grommets can make securing a tarp more flexible and balanced.

• Reinforced edges: Many round tarps include metal grommets on strengthened hems to distribute tension.
• Tie-down options: Use ropes, ball bungees, or straps to attach to frames, stakes, or anchors.
• Spacing varies: Check each Walmart listing for grommet placement and frequency.
• Avoid overtension: Gradually tighten around the perimeter to reduce tearing and stress.
• Ground cloth exception: Some round pool ground cloths don’t use grommets—they’re designed to lay flat under the pool.

Pairing grommets with appropriate chains, ropes, and tiedowns can help create a secure setup, especially for canopies or equipment covers.