These are sized by the duct/hole size and have an approximate 1&quot; surrounding border, which adds approximately 2&quot; to the overall width and length.  Louvers/dampers are included with these registers and are easily removed if required.Cast-Aluminum (black) - $37 eachCast-Iron (black) - $52 eachCast-Brass (polished) - $90 eachPlease download our register pricelist for full size and pricelist under the Prima Registers section <a href="http://thedoorstore.ca/wp-content/uploads/WEB-REGISTER-PRICELIST-2019.pdf" rel="noreferrer nofollow">thedoorstore.ca/wp-content/uploads/WEB-REGISTER-PRICELIST...</a><a href="http://www.thedoorstore.ca" rel="noreferrer nofollow">www.thedoorstore.ca</a>