CODE SNIPPET
Toilet Seat Height
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There is no single seat height which would suit all users. Low toilet seats are difficult for people who have trouble getting up on their feet and for people who use wheelchairs who may be able to transfer onto the seat but not get back into their chairs without assistance. High seats may be difficult for some wheelchair users to get onto and for shorter people because their feet do not touch the floor, making it difficult to maintain balance.
Elevated Seats at Conventional Toilets
ANSI 4.32.4.2 specifies that toilet seats in dwelling units "shall be at least 15 inches and no more than 19 inches measured to the top of the toilet seat." Standard toilets with 15-inch high seats are widely available in the marketplace and offer the best flexibility for adaptation for a wider range of people. For a user who may require that the seat be higher, it is relatively simple to install a seat spacer or thick seat. By contrast, to lower a toilet usually requires replacing the entire toilet fixture. It is recommended that standard low 15-inch toilets be installed in all dwelling units covered by the Guidelines.

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