Polyethylene plastic sheeting—often called construction or painter’s plastic—has lots of practical uses.

• Painting and projects: Use as a drop cloth and surface protection to catch drips and sawdust.
• Moisture control: Heavier films serve as vapor barriers under concrete slabs, floating floors, and in crawl spaces.
• Weather protection: Clear film can be used for temporary storm-window and door insulation.
• Jobsite coverage: Cover materials or equipment from dust and light debris during remodels.
• Outdoor protection: Short-term shielding for items from rain or splashes.

For best results, match thickness to the task and secure edges with compatible tape or fasteners as needed. Take care to prevent slips and trips when walking on plastic, and keep it clear of sharp edges that could tear.

Many people use that term to mean polyethylene plastic sheeting, but products can differ.

• Material: Most construction film is polyethylene; some surface-protection films are vinyl. Check the label.
• Thickness (mil): Options range from lightweight 0.7–1 mil to heavy-duty 6 mil.
• Clarity and color: Clear helps visibility (e.g., storm-window film); black provides privacy or light blocking.
• Intended use: “Drop cloth,” “painter’s plastic,” or “vapor barrier” indicate different performance expectations.
• Size: Rolls vary widely in width and length for small rooms up to whole-home projects.

Comparing the material, mil rating, color, and size can help you select the right plastic sheeting for your project.

Shoppers often use that term generically for construction plastic. Other common names include:

• Plastic sheeting
• Polyethylene sheeting or poly sheeting
• Poly film or plastic film
• Vapor barrier (for moisture-control applications)
• Painter’s plastic or drop cloth (for paint jobs)
• Construction plastic

Using these terms when you search can help you filter by thickness (mil), size, and color—whether you need clear film for surface protection or heavier film for under-slab and crawl-space projects.

Plastic sheeting is available in a range of thicknesses measured in mil (1 mil = 0.001 inch).

• Light-duty: About 0.7–1 mil for covering furniture or basic paint protection.
• Medium-duty: Around 2–4 mil for construction surface protection and projects that need more tear resistance.
• Heavy-duty: Commonly 6 mil for vapor barriers under concrete slabs, floating floors, and in crawl spaces.

Choosing a thicker film generally improves puncture and tear resistance, but it may be less flexible. Matching the mil rating to your task can balance protection, handling, and cost.

A quick measuring plan can simplify roll selection.

1. Measure area: Note the maximum width and length of the space you’ll cover.
2. Add overlap: Plan for at least 6–12 inches of overlap on edges and seams.
3. Match roll size: Common options include sheets for small rooms (e.g., 9' x 12') and large rolls such as 10' x 25', 10' x 100', 16' x 100', or 20' x 100'.
4. Consider thickness: Choose the mil rating that suits the task (light-, medium-, or heavy-duty).

Selecting a roll that’s slightly wider than your space can reduce seams. If you prefer convenience, consider delivery or pickup services to get materials when you need them.