This PDF is Graber’s Custom Drapery Hardware price guide (March 2023). It provides ordering instructions and general installation guidance for 1⅛" rod sets (including traverse and double-rod options), recommended mounting and clearance, size limits and splicing rules, a catalog of finials/brackets with prices and finish codes, and a rod-set pricing table for common widths.
Questions this document answers
6½" to 7" above the glass.
At least 3" on each side.
Maximum width: 192"; maximum width without splice: 96".
18".
Rods over 96" come as two pieces with a centered, concealed splice supported by the center bracket.