39 1/2" x 21 3/8" x 3 3/8" - SP500 shower pan.
39 1/2" x 21 3/8" x 6 1/2" - SP500A model is designed to fit certain Aliner Ascape ST models. It has a 13" by 4 1/2" corner section molded out as a recess.
Shower pans are constructed of durable ABS plastic with reinforced bottoms for extra durability. Available in Polar White.
The drain is molded into the pan and ready to be drilled.