Accessible Bathroom Renovations in Durham Region: How to Tell Whether a Bathroom Recommendation Can Actually Be Built

For occupational therapists recommending bathroom modifications, what is clinically appropriate still has to work within the structure of the home. Ontario builder Quacy Barry explains some of the construction realities that can affect accessible bathroom renovations in Durham Region and elsewhere in Ontario.

Written for occupational therapists.

How to tell whether a bathroom recommendation can actually be built

You write the recommendation. Somebody else installs it. And if they install it wrong, or quietly substitute something cheaper, it is your professional judgment that appears to have failed.

I build to occupational therapy reports for a living. Here is what determines whether what you write can be delivered, so you know where the constraints are before the family gets attached to an idea.

Zero threshold is a structural question, not a product question

A curbless entry requires the shower drain and trap to sit below the level of the surrounding floor structure. That is generally most straightforward when the floor joists and plumbing layout allow the drain to be routed between joists without altering the structure.

Where the joists run parallel to the plumbing wall, routing the drain can become more complicated and may require notching, cutting, or structural modification depending on the layout. Cutting or altering a joist is a structural issue. It can mean an engineer, a permit and additional structural reinforcement. The cost and timeline can change substantially with it.

This can often be established in about four minutes by looking at the ceiling in the room below, and on a slab it is a different conversation entirely.

If a zero threshold entry is essential to your client rather than preferable, it is worth asking a contractor to confirm joist direction and drain feasibility before the report is finalised. Most will do it at no charge.

Blocking cannot be added through a wall that is not being opened

Solid blocking behind the tile is the preferred substrate for a grab bar, and it can only be installed while the wall is open. That means any project where the existing surface stays, including one-day liner installations and most tub cutouts, cannot have blocking added without opening the wall.

That is not automatically a failure. Engineered hollow wall fastening systems can provide an alternative where the wall assembly, product rating, and installation conditions allow. BCR uses engineered fastening systems rated for substantial loads when blocking cannot be added. But they can constrain placement to where the fastener can be properly seated, which is not always where the client's reach requires it.

If your recommendation specifies bar positions determined by the client's stronger side and transfer pattern rather than by convenient framing, say so explicitly in writing. Otherwise it may be built to whatever the wall allowed.

A 60-inch turning circle rarely fits a five-by-eight bathroom

A five-by-eight bathroom is a common residential footprint, providing roughly 40 square feet of space. For an ambulatory client using a walker, that is usually workable. For a wheelchair user requiring a full turning circle and a lateral transfer approach, it usually is not, no matter how the fixtures are arranged.

Achieving those clearances can mean borrowing space from an adjacent closet, hallway or bedroom. That is a different project with different structural and permit considerations and a materially different price. It is far better raised in your report than discovered when a quote arrives.

Specify the valve, because nobody else will

A pressure balancing valve prevents a temperature spike when water is drawn elsewhere in the house. It does not hold a set temperature in the same way a thermostatic valve does. A thermostatic valve controls temperature and can be set with a maximum temperature stop.

For any client with impaired sensation, specify thermostatic and specify the stop. Also specify that it be reachable from outside the enclosure, so water can be brought to temperature before entry rather than while standing under it.

Name the difference between a grab bar and a slide bar

The rail carrying a handheld shower head is not automatically weight-bearing. Unless the product is specifically designed and rated to function as a grab bar, it should not be treated as one. It sits at approximately grab bar height, it looks like one, and clients reach for it.

If a handheld on an adjustable rail forms part of your recommendation, state in the report that the rail is not a transfer aid unless it is specifically designed and rated for that purpose, and that dedicated grab bars are required separately. It is one of the most commonly misunderstood items in an accessible bathroom.

What to ask for from a contractor

Ask what the grab bars are being anchored into, in those words. Ask which type of mixing valve and what the temperature stop is set to. Ask the clear door width after the work is complete. And ask how many days the client will be without the bathroom, as a number rather than a range.

A contractor who does this work regularly will answer all four without hesitating. One who does bathrooms and occasionally mentions accessibility may not.

Our full build specification, including the four things we will not promise, is published at bcrbasements.com/accessible-bathrooms/for-occupational-therapists .

Accessible Bathroom Renovations in Durham Region

Accessible bathroom recommendations can involve much more than selecting grab bars or replacing a bathtub. Door width, floor structure, plumbing location, turning space, transfer requirements and the client's individual mobility needs can all affect what can actually be built.

BCR Basements builds accessible bathroom conversions in Durham Region and works with recommendations prepared by occupational therapists for clients who need safer, more accessible bathrooms at home.

About the Author: Quacy Barry

Quacy Barry builds accessible bathroom conversions in Durham Region and has worked in Ontario residential construction for twenty years.