34 above finish floor.
Ada sink knee clearance.
Clear floor space for forward approach must be provided along with knee and toe clearance under the work surface.
2010 ada standard 305 4 clear floor or ground space knee and toe clearance states unless otherwise specified clear floor or ground space shall be permitted to include knee and toe clearance complying with standard 306 in other words the knee and toe space required by some elements such as a sink or dining table can overlap a clear space for the element.
Helps provide knee clearance when the sink is used from a seated position.
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Knee clearance shall be 30 inches 760 mm wide minimum.
Planning these spaces with the required 27 knee space and counters at 34 above the finished floor for adults 31 for children 6 to 12 is easy when looking at the complete just line.
Between 9 inches 230 mm and 27 inches 685 mm above the finish floor or ground the knee clearance shall be permitted to reduce at a rate of 1 inch 25 mm in depth for each 6 inches 150 mm in height.
Clear floor space to extend max.
Sink to be max.
Of 6 1 2 deep mounted max.
In addition a minimum 9 inches 230 mm high toe clearance must be provided extending back toward the wall to a distance no more than 6 inches 150 mm from the back.
A knee clearance of 24 inches 610 mm minimum above the finish floor or ground shall be permitted at lavatories and sinks used primarily by children 6 through 12 years where the rim or counter surface is 31 inches 785 mm maximum above the finish floor or ground.
The diagram below is.
Of 19 underneath the sink.
If a sink is provided then it must also contain clear floor space and knee and toe clearance for the sink.
Ada csa compliant sink models are available undermount and drop in varieties.
This knee clearance must be 29 inches 735 mm high at the front of the lavatory and no less than 27 inches 685 mm high at a point 8 inches 205 mm back.
The minimum knee clearance must be free of equipment or obstructions for a minimum of 8 inches 205 mm extending from the front edge of the lavatory back toward the wall.
Stainless steel and silgranit sink models are available.
Ada sink measurements at the elementary level knee clearance should be 24 inchesminimum and sink top should be 29 inchesmaximum.
Knee clearance is one of the most recognized requirements in accessible planning.
Ada csa sink models feature a reduced bowl depth for wheelchair accessibility.
At the adult level knee clearance should be 29 inchesminimum and sink top should be 34 inchesmaximum.
If multiple sinks are provided in a room then at least 5 of the sinks must comply.
As an example a solid surface countertop 1 thick an.
However when using solid surface materials the material thickness plays an important role by reducing the allowable undermount sink depth by an equal amount.