Custom Shower Bases

With Ramped Curbs

Custom Ramped Shower Bases are available individually and also as a kit with our Onyx wall panels. Other shower wall systems such as ceramic tile can also be used with Onyx shower bases.

We recommend using a shower curtain and our roll-over vinyl with our integral ramp shower bases. If a door is needed, a good option to consider is a Low Profile shower base with an add-on ramp.

Onyx Shower Kits can be ordered in 78”, 84”, 90”, 96”, 102", and 108" tall heights (and any other height as needed). These kits include the shower base, all wall panels, adhesive silicone, and also color match seamfill silicone. 

All our custom shower bases are cast in pieces to your specifications and then chemically bonded into a single unit for easy, worry-free installation.

Below are the ramp access shower options that we make. Click on the images to see more details.
shower caddies

Add-On Ramp for Low Profile Shower Base

  • Turns any Low Profile Base into a Ramped Base
  • Can be attached permanently, temporarily, or left unattached or removable
  • Finished on left and right ends, top and front edge
  • Can be ordered any length


Ramped Radius Curb

Integral Ramp - 4 1/2" or 6" Threshold
  • Smaller Ramps ideal for residential remodeling
  • Compatible with shower curtain
  • Minimal "drop-down" on inside of ramp
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    Integral Ramp - ADA Spec -
    Up to 20" Threshold
  • Longer Ramp provides easier "roll-in" access
  • Compatible with ADA requirements of 12:1 or 8:1 ramp pitch. Please review ADA Standards for Accessible Design [sections 4.1.6(3)(a) and 4.8.1 - 4.8.3] regarding ramps. Standards state that new construction requires a 12:1 ramp pitch, and remodeling is allowed a pitch up to 8:1 when space does not allow for the regular 12:1. Please verify these specifications with your ADA expert.
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    Product Certification: ANSI standard, Slip Coefficient, ASTM E-84 Flame, and the Massachusetts Shower Base Approval test results