rough opening for Carrier 52F wall sleeve

Does anyone know what the rough opening should be for the 52F wall sleeve? The Carrier installation manual gives 52F "wall sleeve dimensions" of (25 7/8" (W) x 15 9/16 (H) ), but are they inside, outside or rough dimensions?
Many thanks, H.K.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 14 Apr 2007 09:07:49 -0700, snipped-for-privacy@gmail.com wrote:

They are roughly inside on the width and outside on the Height. The depth is just plain rough. Bubba
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@gmail.com wrote:

then fill it in with great stuff then use homasote over it then slap it up then drill them holes zackly where they should be and core drill the blow hole.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.