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How much space is needed for a walk-in shower?

From our extensive experience as a home remodeling company, the space required for a walk-in shower can vary, but there are standard dimensions that we often recommend. Ideally, a walk-in shower should be at least 36 inches by 36 inches, providing enough room for comfortable movement. However, for a more luxurious feel or to accommodate features like benches or dual shower heads, a larger space measuring at least 48 inches by 36 inches is preferable.
It's also important to consider the overall bathroom layout when planning for a walk-in shower. Adequate space should be left for the shower door opening, with a minimum clearance of 24 inches, and to ensure that other bathroom fixtures aren't cramped. For those looking to include accessibility features, such as wheelchair accessibility, the shower space might need to be larger, adhering to ADA (Americans with Disabilities Act) guidelines for safety and comfort.