Grab Bars and Bathroom Safety Hardware That Looks Good

Bathroom safety hardware has changed. Grab bars now come in the same finishes as faucets, shaped as towel bars, shelf rails and toilet paper holders, and a well-planned bathroom can be safer without looking clinical. The part that matters most is invisible: solid wood blocking inside the walls, put in before tile. This page covers that blocking, the dimensions designers work from, the hardware choices, shower seats and slip resistance.

Is a grab bar required in a house?

For most single-family homes, no requirement was found. The Washington residential code sends buildings with four or more dwelling units to the accessibility chapter of the building code (IRC R320.1), which a single house is below, and no section requiring grab bars or blocking in a one-family dwelling was found in the Washington residential or plumbing code sections reviewed for this guide. That is an absence of a rule rather than a rule saying "not required", so if you are remodeling a condo, an adult family home, or anything other than a private house, ask the building department what applies.

Washington's plumbing code does make room for grab bars. Under the state's version of UPC 402.5, accessibility grab bars are not counted as obstructions when measuring the clearances around a toilet, and the minimum shower size rule (UPC 408.6) allows safety grab bars and rails inside the required shower area. So adding bars does not cost you code clearance. The clearances themselves are on our bathroom plumbing code page.

Blocking: the step to do before tile

A grab bar's strength comes from what holds it. Drywall anchors, tile alone or a hollow wall will not hold a person's weight. Blocking is solid lumber (or a manufactured backing panel) fastened between the studs at the heights where bars may go, so the bar's screws bite into wood wherever you want it.

• Put it in while the walls are open, even if nobody needs a bar today. It costs very little during framing and saves opening finished tile later.
• Cover the zones, not just one spot. Block the whole band where bars are likely: beside and behind the toilet, along the shower walls, at the tub's back wall and control end, and where a fold-down seat might go. A continuous band lets you choose bar positions later.
• Record where it is. Photograph each wall with a tape measure in the shot before drywall or backer board goes on. Keep the photos with your house records.
• Coordinate with waterproofing. In a shower, the blocking sits behind the backer and membrane. Screws for the bar will pass through the membrane, so the bar's flanges must be sealed as the membrane maker requires. See shower waterproofing explained.

The ADA Standards themselves contain a residential dwelling unit exception: in the units they cover, grab bars need not be installed if wall reinforcement is in place for them. That is the same idea applied to a home: block now, add bars when needed.

The dimensions designers work from

These figures come from the 2010 ADA Standards for Accessible Design, which govern public and commercial facilities, not private homes. Designers use them as a reference because they describe bars that are easy to grip and strong enough to trust. Your own household may be better served by adjusting heights to the people who live there.

The 1-1/2 inch space matters more than it looks. A gap that is too narrow traps a forearm in a fall; a gap that is too wide lets an arm slip through. The NKBA planning guidelines make the same practical point for homes, recommending that tub and shower walls be reinforced at construction for grab bars that support 250 pounds. Our aging-in-place bathroom design page puts these figures together with turning space, toilet height and curbless showers.

Grab bars that do not look institutional

Textured or knurled gripping surfaces hold better with wet hands than a polished bar. Exposed-screw flanges are easier to inspect and tighten; concealed-screw flanges look cleaner.

Shower seats and other safety hardware

• Shower seats. A built-in bench is part of the shower construction and is waterproofed with it. A fold-down seat mounts to blocking and folds flat when not used. The NKBA guideline recommends a seat 17 to 19 inches high and 15 inches deep. Washington's minimum shower size rule lets fold-down seats in accessible showers protrude into the required area. See shower niches and benches.
• Handheld shower on a slide bar. Lets a seated person shower and adjusts to any height. A slide bar is not a grab bar unless it is specifically rated as one. See showerheads and handhelds.
• Anti-scald valve. Every new shower in Washington must have a pressure-balance, thermostatic or combination valve that limits water temperature; see shower valves.
• Lever handles on faucets and doors are easier for hands with limited grip than knobs.
• Night lighting from the doorway to the toilet reduces trips in the dark.
• Toilet height. A comfortable seat height makes sitting and standing easier; see choosing a toilet.

Slip resistance underfoot

A wet floor is where a bar cannot always help, so flooring choice is safety hardware too. For floor tile, the measurement is the dynamic coefficient of friction (DCOF), tested under ANSI A326.3. For interior floors expected to be walked on when wet, the standard calls for a wet DCOF of 0.42 or more. Check that number on the tile's spec sheet for any bathroom floor.

Two cautions from the tile and stone industry. TCNA notes that DCOF "does not predict the likelihood a person will or will not slip"; traffic, contaminants such as soap, and maintenance also matter. And in a Natural Stone Institute lab study, polished stone finishes did not meet the 0.42 benchmark as an average in any stone type, so honed or textured finishes are the safer choice underfoot. Inside the shower, small mosaic tiles with many grout joints give more grip than large smooth tiles. Our bathroom tile guide covers floor tile choices in depth.

What to check before you buy

1. The bar is sold as a grab bar, with a stated load rating, not as a towel bar or decorative rail.
2. Diameter and wall clearance suit the user's grip (the ADA reference is 1-1/4 to 2 inches across, 1-1/2 inches off the wall).
3. Lengths fit the blocking you have, and flange spacing lands screws in wood.
4. Finish matches the faucet and shower trim, and the gripping surface is textured if it will be used wet.
5. Mounting hardware and sealing instructions suit tile over a waterproof membrane.
6. For fold-down seats: the weight rating, folded depth and blocking required.
7. For floor tile: a wet DCOF of 0.42 or more on the spec sheet, and a honed or textured finish rather than polished.
8. That blocking locations are photographed and recorded before the walls are closed.

How JDI plans for safety hardware

On our bathroom remodels we discuss who uses the room now and who may use it later, and we add blocking in the zones where bars or a seat may go, whether or not bars are installed on day one. The 3D design layout shows bar positions with the fixtures, so they read as part of the design. For a shower built around easy access, see our shower remodeling in Vancouver page, or request a free in-home consultation.