24×48 pehd sheets for nstruction-HDPE high density At Okay, we offer the following standard sizes for our clear polycarbonate sheets and panels: 24″ x 48″ 24″ x 96″ 48″ x 48″ 48″ x 96″ 48″ x 120″ 60″ x 96″ 72″ x 96″ If you require additional sizes, please explore our cut-to-size option.