number of factors, quantity, method of braille etc.
Kindly price it as you like, but keep in mind if you price it too low, the customer may expect this same pricing in the future, and you don't want to p*ss off a client by doing them a favor here.
$30 to add the braille? I suppose so if it's a one off, but our typical bathroom sign batched into a big order, 9"x6", braille, pictograms and raised copy, cost $43 total. If I was already selling a one off sign that size, it would probably be about $125, with or without braille, depending on logo intricacies etc.
We get 9x9 Bathroom signs with printed Tactile and Braille for $67/ea on other jobs with brushed aluminum and stainless beads we get $157/ea.
Braille if done right, is not a commodity; it is a specialty. Just remember if you have braille you typically are required to have tactile pictograms and/or text.
Hence my and/or statement. Here in AZ there are situations where you can have just a Pictogram and braille with no text. In that case, the pictogram must be tactile.Pictograms, per the 2010 Accessibility Guidelines, are not required to be tactile. The only mandates for pictograms are that they must be in a field w/ a minimum height of 6", there can not be any characters or braille in said field & they must have proper contrast w/ a non-glare finish (including the field). The only item that must be tactile is a text descriptor which must be located directly below the pictogram.
Hence my and/or statement. Here in AZ there are situations where you can have just a Pictogram and braille with no text. In that case, the pictogram must be tactile.
The bigger question is, how do you have the equipment to make braille signs, but not know what to charge for it?