: Stocks a wide range of Polymershapes and Shape Products HDPE. Common sizes include 12" x 48" and 24" x 48", with prices typically ranging from $34 to $104 .

: Offers similar inventory, specifically carrying the Sanalite brand. A standard 0.25-inch thick 24" x 48" sheet is priced at approximately $71 .

You can buy high-density polyethylene (HDPE) sheets from a variety of sources depending on your project size and custom-cutting needs. For convenience, and Amazon offer the fastest accessibility, while specialty plastics distributors like TAP Plastics and ePlastics are better for custom-cut or marine-grade requirements. 1. Home Improvement & General Retailers Best for standard-sized sheets and immediate local pickup.

Best for custom dimensions, custom machining (drilled holes, rounded edges), and specialized grades (Marine/King StarBoard). HDPE Sheets - The Home Depot

: Carries white HDPE sheets (24" x 48") for roughly $63 . 2. Specialty Plastics Distributors

: Excellent for smaller project panels (e.g., 12" x 12" or 12" x 24") and specialized thicknesses. Prices for smaller blocks start as low as $15–$20 .