Buy Thick Plastic Sheets May 2026

Measured in inches or millimeters. "Thick" here generally starts at 1/8" (3mm) and can go up to 1" or more . These are used for windows, machine guards, and structural building. 2. Choosing the Right Material

: Similar selection to Home Depot, often carrying the Project Source brand of heavy-duty sheeting. Specialized Industrial Suppliers buy thick plastic sheets

: A major distributor offering a massive range of materials like ($272.48 for 1/4" x 48" x 96"). Grainger : Reliable for industrial-grade materials like HDPE Sheet 1" Thick Go to product viewer dialog for this item. ($769.41). Measured in inches or millimeters

Excellent clarity, UV resistant, scratch-resistant, rigid but brittle. Displays, signage, aquarium tanks, decorative panels. Grainger : Reliable for industrial-grade materials like HDPE

For standard sizes (like 2'x4' or 4'x8') and common thicknesses:

Measured in "mils" (1 mil = 1/1000 of an inch). "Thick" in this category usually refers to 6 mil to 10 mil material used for vapor barriers, construction covers, and tarps.