Accessible Walk-In Shower Timeline in Boise

We begin with an in-home assessment of the existing bathroom, the user's current and anticipated mobility needs, and the structural conditions of the space. If applicable, we coordinate with the homeowner's occupational therapist or physical therapist to optimize grab bar placement, bench height and position, fixture controls, and shower entry design. This consultation phase is unique to accessible shower projects and ensures the finished shower truly serves the user's needs rather than following generic ADA minimums.

• In-home measurement and structural assessment
• OT/PT consultation coordination (if applicable)
• Accessibility feature selection and placement
• Permit determination and application submission

Non-slip tile selection (with DCOF verification), grab bar style and finish selection, bench type (fold-down or built-in), thermostatic valve specification, and showerhead system are finalized. Specialty accessibility fixtures — particularly fold-down teak benches, continuous grab rail systems, and ADA-compliant linear drains — may require 2 to 3 weeks for delivery to Boise. We confirm all materials are on-site before scheduling demolition.

• Non-slip tile with DCOF certification
• Grab bars, bench, and safety fixtures
• Thermostatic valve and showerhead system
• Linear drain and waterproofing materials

Existing tub, shower, tile, and substrate are removed. If converting from a tub-shower combo (the most common scenario in Boise homes built before 2000), the tub is disconnected and removed. Dust barriers and floor protection are installed to protect the rest of the bathroom and adjacent rooms. The framing, subfloor, and existing plumbing are thoroughly inspected for water damage, mold, or inadequate conditions. Any hidden issues are identified and communicated immediately.

This phase is unique to curbless accessible showers and is the most structurally significant step. The subfloor within the shower footprint is lowered to create the necessary recess for the pre-slope and linear drain while maintaining a flush transition with the adjacent bathroom floor. In homes with standard wood-framed floors (common in Boise's Bench, Vista, and North End neighborhoods), this involves notching or sistering floor joists. On concrete slab foundations, a channel is cut for the drain. A framing inspection may be required before proceeding.

The thermostatic mixing valve is installed at the correct height for both standing and seated operation. The linear drain is positioned and connected. Supply lines are run for the handheld showerhead slide bar and any fixed showerhead. Critically, solid blocking (2×6 or plywood backing) is installed in the wall framing at every planned grab bar location. This blocking must support a minimum of 250 pounds of force per ADA requirements. The blocking locations are documented and photographed before walls are closed.

Waterproofing is the most critical phase in any curbless shower build. Without a curb to contain water, the entire waterproofing assembly must be flawless. Schluter Kerdi sheet membrane or equivalent is applied to all walls with pre-formed corners and pipe collars at every penetration. The shower floor receives a liquid-applied membrane in two coats at manufacturer-specified mil thickness. The curbless transition zone between shower and bathroom floor receives particular attention with overlap membrane and drainage slope verification. Read our waterproofing systems guide for detailed information.

High-DCOF non-slip tile is installed on the shower floor with precise slope to the linear drain. Wall tile follows, including any contrast tile bands for low-vision users. Built-in bench tile, niche tile, and the curbless transition floor tile are all set during this phase. Grout is applied, cleaned, and sealed. For accessible showers, we pay special attention to grout joint width and profile to prevent trip hazards on the floor — smooth, flush joints are essential. The materials guide covers non-slip tile options in detail.

Grab bars are mounted into the pre-installed blocking at locations specified during the planning phase. Each bar is load-tested to verify it can support the required weight. The thermostatic valve trim, handheld showerhead with slide bar, and any fixed showerhead are installed. The anti-scald limit stop is calibrated to prevent water temperature from exceeding 120°F. The fold-down bench or transfer seat is mounted and tested. All connections are checked for leaks and proper operation.

If permits were pulled, all required inspections are completed — plumbing, electrical (if applicable), and building. We conduct a thorough walkthrough with the homeowner (and OT/PT if involved) to demonstrate every feature: grab bar placement and feel, bench operation, valve controls from seated and standing positions, showerhead adjustment range, and drainage performance. Care instructions are provided, including hard-water maintenance recommendations for Boise conditions and non-slip tile cleaning best practices.