Please Stop Using 4x4 Steel

Please stop using 4" x 4" columns with 5" or larger window and door frame depths! Most floor to ceiling storefront windows have a 4-1/2" to 5" frame depth, 3-track sliding doors are usually 6". This creates all kinds of installation and waterproofing problems.

In this case these windows and doors shouldn't have been installed before the column was properly padded out, structurally anchored and waterproofed.