18" x 24" - Clear Acrylic Plexiglass Sheet - 1/4" Thick Cast. 6.0 mm, .220". Nominal 1/4" Thick (actual thickness will be approximately .205" to .250"). Nominal size saw cuts. Plexiglass acrylic sheets are perfect for window replacements, signage, displays, aquarium covers, and many more DIY projects. Paper masking on both sides. This is stronger than glass and weighs half the weight as glass. This can be used to put on a table for protection. We can cut many different custom shapes, laser cuts and silk screening.