How to Choose a Tarp for Outdoor, Home, and Utility Projects

October 9, 2026

Close-up of a heavy-duty tarp corner with a metal grommet, stitched hem and bungee cord

A good tarp is one of the most useful things you can keep in your garage. It can cover firewood, protect furniture from rain, catch paint drips, or keep your tent dry. But tarps come in many materials, thicknesses, and sizes, so picking the right one for your project makes a big difference.

What a Tarp Does and Why the Right One Matters

A tarp is a large, flexible sheet used to cover, protect, or shelter things from weather, dust, or mess. A tarp that's too thin can tear in the wind, while one that's too heavy can be hard to handle for simple jobs. Matching the tarp to the task saves money and frustration.

How to Choose the Right Tarp

1. Pick the right material

Polyethylene (poly): Lightweight, waterproof, and affordable. Great for general covering. The Better Blue Poly Tarp 12' x 20' is a classic all-purpose option.
Canvas: Breathable and durable, ideal for painting and covering items that need airflow. Try a Canvas Drop Cloth for Painting.
Vinyl: Very strong and water-resistant, often used for heavy-duty or long-term covering.
Clear plastic: Lets light through and is great for dust barriers during home renovations, like the RE-U-ZIP Ultra-Clear Barrier Panel.

2. Check the thickness

Tarp thickness is often listed in mils. Thin tarps work for short-term use, while thicker tarps, like this White Heavy Duty 20 Mil Tarp (10' x 12'), hold up better to wind, sun, and repeated use.

3. Choose the right size

Measure what you want to cover and add extra on every side so you can tie it down securely. Keep in mind that finished tarp sizes can be slightly smaller than listed after hemming.

4. Look at grommets and edges

Rust-resistant grommets spaced closely together and reinforced hems help the tarp stay secure without tearing.

Common Tarp Uses

Outdoor covering: Firewood, grills, furniture, boats, and equipment.
Home projects: Drop cloths for painting and dust barriers for remodeling.
Camping: Ground cloths and rain shelters. The Frelaxy Waterproof Tent Footprint protects your tent floor, and the 12x10 Lightweight Rain Fly creates quick shelter.
Utility and hauling: Covering truck beds and trailers.

Tips and Mistakes to Avoid

Don't leave loose edges flapping in the wind, since it can tear grommets.
Secure tarps with bungee cords or rope. A set like the Rocket Straps Bungee Cord Assortment makes tie-downs easy.
Angle the tarp so rain runs off instead of pooling.
Dry tarps completely before folding to prevent mildew.
Use a breathable cover for items that can trap moisture underneath.