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Internet # 320885948

Model # 1B1S-3672SECA

Store SKU # 1008119339

72 in. L x 36 in. W x 1.125 in. H Solid Composite Stone Shower Pan Base with L/R Drain in Carrara Sand

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  • Solid Composite Stone - No Plastic, No Acrylic
  • Made in USA - Orders Ship in 1-2 days from Texas
  • Designed for quick & easy install in remodel/new construction
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Product Details

About This Product

Upgrade your shower space with the CASTICO curbless Shower Base, a perfect blend of style and functionality. Crafted from solid composite stone, this durable, solid-throughout base is designed for long-lasting performance. The anti-slip surface enhances safety, while the pre-sloped design ensures efficient drainage and simplifies installation on flat surfaces. Its sleek, curbless design improves accessibility and adds a modern, sophisticated touch to any space. Ideal for contractors seeking efficiency or homeowners craving elegance, the base installs quickly and easily-simply attach the flange kit and secure it over thinset. Experience beauty, safety, and simplicity in one seamless solution.

Highlights

  • Model Size: 36 in. D x 72 in. L x 1-1/8 in. H (including waterproofing flange dimensions)
  • Includes: 36 in. x 72 in. shower base, stainless steel decorative drain plate and a waterproof flange kit
  • Solid Composite Stone Construction: Durable, non-porous, stain and scratch-resistant materials - NO plastic, acrylic, or silica
  • Modern curbless base design combines safe accessibility and style
  • Pre-Sloped Base for proper water draining
  • Noise-Reducing Solid Core
  • Quick & simple installation using thinset or construction adhesive
  • Easily trim up to 1 1/2 inches on each side using a tile or circular saw with a fine-tooth blade (DO NOT cut on the exposed front edge).
  • Low-maintenance care: Cleans easily with household tile cleaners; avoid direct bleach, abrasive tools, or harsh chemicals
  • Install with 2-inch drains for preformed shower bases; suggested model #420452
  • Pre-sloped design for proper and easy drainage
  • UPC-certified and IAPMO certified
  • UPC and IAPMO certified
  • Limited Lifetime Warranty
  • Proudly Made in the USA
  • Ships in 1-2 days from Texas
  • Click here to view the full CASTICO assortment
  • Return Policy

Product Information

Internet # 320885948

Model # 1B1S-3672SECA

Store SKU # 1008119339

Specifications

Dimensions

Base Height (in.)

1.125

Base Length (in.)

72

Base Width (in.)

36

Threshold Height (in.)

1.125

Details

Approximate Length x Width

72 x 36

Color Family

Gray

Color/Finish

Carrara

Drain Location

Reversible

Features

No Additional Features

Included

No Additional Items Included

Installation Type

Rectangular

Material

Composite

Number of Finished Sides

1

Pack Size

1

Product Weight (lb.)

96.2 lb

Returnable

90-Day

Shower Type

Alcove

Warranty / Certifications

Certifications and Listings

IAPMO Listed

Manufacturer Warranty

Limited Warranty

Questions & Answers

What are the measurements to the center of the drain?
ByApr 23, 2025
1 Answer | 
Answer This Question

Hi there! For our 36" pan base, the drain center is 8 1/4" from the top edge and 18 1/16" from the right side. Keep in mind that the listed dimensions (like 60" x 36") include the flanges, and there may be up to a 1/8" tolerance due to material properties. You’ll find this and more details in the additional photos on the product page. If you need help, feel free to call us at 844-364-2502—we’re here to help!

By|Apr 23, 2025
    0/0


    Why does video say use ceramic tile when porcelain tiles are usually recommended for showers?
    ByMar 24, 2025
    1 Answer | 
    Answer This Question

    Hello and thank you for the question. No particular reason. I believe we use the term interchangeably. The point is that you may use our wall panel or you may choose your own tile of choice (glass, ceramic, porcelain, stone, etc). Many thanks for the question.

    By|Mar 25, 2025
      0/0


      Install instructions does not state the type of drill bit is needed and the diameter to install the flange
      ByMar 7, 2025
      1 Answer | 
      Answer This Question

      Hello! The flange screws included with our pan bases and shower kits are self-tapping which do not require pre-drilling for installation. Please let us know if you have any other questions. We are happy to help! contact@castico-tx.com

      By|Mar 11, 2025
        0/0


        Can this be cut down to size? I would need to cut it down from 72" to something betwwen 58-64".
        ByFeb 22, 2025
        1 Answer | 
        Answer This Question

        Although our pan bases can be trimmed up to 1.5" on each side, trimming down from a 72" to 58-64" would exceed the limit. Cutting over 1.5" from any side will eliminate any threshold. It will cut into the pre-sloped pan design, impacting the water's ability to drain properly. Let us know if you have any questions by reaching out directly to 844-364-2502

        By|Feb 24, 2025
          0/0


          What is the actual rough opening for the 72" X 36" shower pan?
          ByNov 28, 2024
          1 Answer | 
          Answer This Question

          There is a roughin spec on homedepot.com for each unit. It is usually the 3rd pic. You may print this pic as well. Many thanks.

          By|Dec 2, 2024
            0/0


            Would there be an option where I could walk into the shower from the back short end and have my two side walls the longer length? I do not like glass doors, so I would do it without a door.
            ByNov 24, 2024
            1 Answer | 
            Answer This Question

            Hello Brandon Sure, you may do a narrow side entrance. When you order your base or kit, call us and order an additional long side shower base flange. We have seen the installation completed many times and it looks great. Many thanks Brandon

            By|Dec 1, 2024
              0/0


              Can you lay thinset and floor tile on top of this shower pan?
              ByNov 11, 2024
              1 Answer | 
              Answer This Question

              Hello Andrew. Our pan bases are designed as a finished item with beautiful color and pattern options and non-slip surfaces that replace the need for tile shower floors. We do not recommend tile floors over our pan bases as they may not adhere correctly, can impact pre-sloped design, and affect drainage.

              By|Nov 12, 2024
                0/0

                (1)

                I need a shower base for a 32-34" W x 72" L alcove space. Would my contractor be able to cut off 1.5" off each (long) side of the 36" W x 72" L shower pan to fit? What would the cut side look like that faces outward to shower entry? Is this even doable?
                ByNov 6, 2024
                1 Answer | 
                Answer This Question

                Hello Karen and thank you for the question. First, our product is like a radish. When you cut it, there is a solid white inside. So this would be visible on any side you cut. It sounds like the long side will still be exposed to the front. For you particular install i would cut the 3' of the back / unexposed side. The base has a 2" flat edge all the way around. You may cut more than the recommended up to 2". However now your drain wont be in the cent of the shower but of cent by the amount you cut. If you chose to cut both sides vs one side you may put tile trim pieces or cut tile pieces to cover the exposed edge of the shower base on the front. They be be glued on with construction adhesive or with tile mastic You bath contractor should have no issue cutting. They should use a wet saw to make the cuts. Many thanks

                By|Nov 6, 2024
                  0/0


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                  Customer Reviews

                  4 out of 5

                  • 4 out of 26 reviews
                  • 80% recommend this product
                  What Customers Say
                  Summarized by generative AI from text of customer reviews

                  Customers say the shower base offers a solid and attractive design, with many appreciating its easy installation and durability compared to fiberglass options. While the color accuracy and potential for chipping have been noted as concerns, overall satisfaction with the product's quality and functionality is high. Some users have experienced issues with cleaning products affecting the color, highlighting the need for caution. The product is generally well-received, making it a recommended choice for various bathroom remodels.

                  Filter by:
                  Showing 1-10 of 26 reviews
                  Beautiful shower pan but....
                  We ordered the graphite gray and it's exactly the same color as the photos online. The installation was easy, but we ran into an issue and we're not sure how to fix it. There are two chips in the pan and they're noticeable because under the gray color is white. We are not sure how this material chipped so easily. We haven't even used the shower or this pan yet!
                  by
                  Response from CASTICOFeb 12, 2024
                  Hello Nicole! Thank you so much for your review. We are glad to hear that the installation was nice and easy for you. If your pan was chipped during installation, we have touch-up kits available to order directly from our website at https://castico-tx.com/product-category/accesories/ CASTICO
                    • Recommended
                    Color is way off
                    Ordered Graphite Sand color which should be nearly black or at least a very dark grey. The color that came to me is more of a light grey. Not even close to the sample picture. Otherwise the pan seems very strong. I’m not overly excited about having to apply waterproof band with sealant, especially the corners. But I’ll use a submersible polyurethane so it should be fine.
                    by
                      • Recommended
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      Gray marbling turned pink!!!
                      Base worked and looked great until we used bleach to clean some stains on the wall tile. The gray accent marbling turned pink. Now I’ll have to remove the glass shower doors, break this base out and find a better manufacturer. If bleach ruins your product why wouldn’t you put a huge warning label on it? Ridiculous and negligent.
                      by
                      Response from CASTICOSep 24, 2024
                      Hello Eden Restoration, i will be reaching out to see if i can find you inorder to discuss. Our product has always been safe with household bleach and non abrasive cleaning products. I have seen commercial tile cleaner with acids as primary ingredients cause issues with many finishes. I would like to learn more and if our product failed, i am happy to send you a new base at no charge... consistent with our limited lifetime warranty.
                      Many Thanks! CASTICO
                        Great product exactly what I needed. Like the fact that i don't need to install a laborus old style shower pan
                        by
                        Response from CASTICOSep 24, 2024
                        hi Steve! thank you for the feedback. We are happy to hear that your project went great! CASTICO
                        • Verified Purchase
                        Great floor surface for a walk-in shower. Very attractive.
                        by
                        Response from CASTICOAug 6, 2024
                        Thank you for sharing your thoughts. We are glad to see you are happy with your new pan base. We appreciate your review and your business. CASTICO
                        • Verified Purchase
                        Nice shower pan
                        Installed on my shower 72x36. A little bit heavy to installation by one person but found way to do it with two. Nice color matching my tiles, so far working great and not slippery. Little bit pricy but cheaper then other solid pans made of stone.
                        by
                          • Recommended
                          1 found this review helpful
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
                          by
                          • Verified Purchase
                          This customer chose to rate the product and not provide text.
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                          • Verified Purchase
                          Showing 1-10 of 26 reviews