Specifications
15 
MODEL 601 / 603 
Before you begin installing your Ready Access Drive-Thru Window, you must determine what type of installation 
will be required. Example: Wood Framing, Masonry Framing, etc. 
See Chart on page 11 for Masonry and Glazing Rough Opening Sizes 
The window must be installed square and plumb. 
Installation illustrations are for reference only. Construction and local codes will determine 
the proper installation of the window. 
Contact Ready Access for more information. 
"W" Rough Opening
"H" Rough Opening
Min distance from
the top of the sill 
to the floor
604 Series
602 Series
36"
(914mm)










