“Mil” is a thickness measurement (one mil = 0.001 inch). In general, a 20 mil tarp is thicker and heavier than a 10 mil tarp.

• Durability: Thicker tarps can offer added puncture and abrasion resistance, which may help for heavy-duty covers and longer outdoor use.
• Handling: Thinner tarps are lighter and easier to fold, which can be convenient for quick projects, painting, or short-term protection.
• Material matters: Performance also depends on the material (e.g., polyethylene vs. clear vinyl), weave/lamination, UV resistance, and edge reinforcement.

For the best fit, check each product’s specs and reviews on Walmart.com, and match thickness to how long you’ll use it, the weather exposure, and how often you’ll handle it.

Plastic tarps are versatile, but there are a few trade-offs to consider:

• Breathability: They’re not breathable, so moisture can get trapped underneath, leading to condensation.
• Sun exposure: Extended UV exposure can reduce lifespan if the tarp isn’t UV-stabilized.
• Noise and movement: Wind can cause flapping, which may be noisy and may stress grommets.
• Traction: Surfaces can be slippery when wet.
• Heat: They aren’t designed for high-heat sources.

If you expect long sun exposure or heavy wear, consider options with UV resistance, reinforced edges, or heavier mil ratings on Walmart.com. For projects where airflow is important, a canvas-style drop cloth could be a better fit.

You can browse a wide range of value-friendly options online and in-store at Walmart.

• Shop by category: Explore Tarps, Waterproof Tarps, Blue Tarps, Plastic Sheeting, and Drop Cloths to compare coverage and thickness.
• Filter by need: Use filters like light-duty or size to find lower-cost, lighter-weight options for short-term projects.
• Look for packs: Multi-packs and assorted sizes can offer practical value for multiple jobs.
• Check availability: Set your ZIP code on product pages to see local stock for Pickup or Delivery.

Selection and availability vary by location and time, so it can help to compare a few options and read product details to match your budget and project.

Same-day options can be available depending on your local store’s inventory.

• Set your store: On Walmart.com, enter your ZIP code and select your preferred store.
• Check the product page: Look for Pickup availability and estimated timing before you add to cart.
• Choose Pickup at checkout: Select the Pickup option, then watch for an order-ready notification before heading to the store.
• Consider alternatives: If a size isn’t in stock for Pickup, check Delivery or Shipping options, or nearby stores.

Availability, timing, and item selection can vary by location and demand, so reviewing multiple sizes or duty levels can help you find something ready today.

Start with your project measurements, then add extra coverage for secure tie-downs.

• Measure area: Note the length and width you need to cover.
• Add overhang: Add 6–12 inches on each side to allow for drape and securing to grommets.
• Account for shape: For sloped roofs, stacks, or vehicles, plan a bit more to wrap sides.
• Check grommets: Spacing and reinforced edges can help with a snug, stable setup.
• Match duty to use: Light-duty can work for temporary cover or painting; heavier mil tarps and plastic sheeting are better for longer, outdoor protection.

Compare dimensions listed on Walmart.com and pick the size that fits your space with room to secure it properly.