3/8" White Acrylic Sheet
Color 3015 · 3/8" thick · also known as #3015
3/8" White opaque acrylic (plexiglass), cut to your exact size from 11″ to 48″ per side. Choose a standard size or enter custom dimensions, add flame- or diamond-polished edges, and see the price instantly.
3/8" white in practice
Opaque stock blocks light entirely, so at 3/8" the decision is structural and visual rather than optical — you are choosing how solid the piece needs to feel and look.
Solid enough to machine, tap and edge-finish like a workpiece rather than a sheet — the range where acrylic is being used as a component, not a covering.
In a laser: pigment absorbs the beam, so this cuts on a CO2 machine and on a diode, but 3/8" is beyond what a desktop diode will get through — treat it as CO2 stock.
3/8" white (color 3015) starts at $11.71 for a 12″ × 12″ piece at this thickness, and weighs about 2.34 lb per square foot, so a 24″ × 48″ piece comes to roughly 18.7 lb — worth knowing before you size a panel someone has to lift or ship.
Why 3/8" white acrylic?
A heavier, more substantial panel. 3/8″ resists flexing across wider spans, making it well suited to sturdier shelving, display bases, and panels that carry some weight or need to feel solid to the touch.
About White acrylic
White 3015 is our workhorse opaque white — a bright, solid, glossy sheet that blocks light completely. It's the standard for sign faces, retail fixtures, and panel work: anywhere you want a clean finished white surface rather than a glow. Because it's opaque, back-lighting won't pass through — choose a translucent white for light boxes.
Made to order. Everything listed here is available to order now. If your color or thickness runs out after you order and we can get more quickly, we make or source it and ship as soon as it's back in — we'll email you if there's a delay. If it's no longer available at all, we cancel that item and refund it in full. On a deadline? Email us before you order with the date and we'll tell you straight whether it looks tight.