add custom size patio doors under deck beam at front edge of beam not back at house wall we are enclosing area under deck good now try with a narrow window on each end and a 4 panel patio door in the middle now remove brick on new wall under beam make windows on each end of patio door 1 2 as wide and make patio door wider right idea now windows just a little narrower yet ok window 1 10 of opening then sliding door 8 10 of opening then another window 1 10 of opening