The beginnings of a better shower. Not only are acrylic bases warmer to the touch than other options, we reinforce ours with fiberglass to make them stronger. Match one of these single-threshold, high-gloss acrylic shower bases with an alcove shower wall set and door to create a shower that suits both your wants and needs. Lay the foundation for a perfect shower with the help of American Standard's shower bases. Our shower bases are available in a variety of sizes and styles to suit any bathroom.