How to Measure Premium RV Day & Night Roller Shades for Inside Valance Mount

Do not order an Irvine replacement from the MCD shade name or tube diameter alone. The existing MCD American Duo motorized assembly and the listed Irvine Slow-Rise product are different systems. A 1.25-inch tube and Suede color do not establish matching brackets, rail dimensions, clearances or motor controls. The question provides no actual opening dimensions, so a finished order size cannot be calculated here.

Record the raw measurements first: measure the inside valance width near the top, the available mounting depth and height, and the drop from the proposed mounting position to the bottom of the window frame. Also record window coverage, the existing complete assembly width, obstructions and the mounting-rail/clip profile. Photograph the rail, clips and model label. Keep opening measurements separate from finished shade width and fabric width.

Use one confirmed ordering convention. Irvine's Slow-Rise support guide describes measuring inside the valance and subtracting 1 inch; its roller order form shows window-overlap measurements with a separate half-inch valance-clearance note. The current ERVP builder's inside-mount instructions instead request the exact inside opening with no customer deduction. These instructions address different measurement conventions and do not establish one universal deduction for this conversion. Confirm whether the selected order needs an opening size or a finished assembly size before entering dimensions; do not subtract twice.

The earlier half-inch instruction, 5-inch raised-position minimum, extra 2-inch roll allowance and ±¼-inch manufacturing tolerance are not established as universal specifications for the selected Irvine assembly. Available space must accommodate that assembly through its full travel. MCD's installation instructions describe its own mounting clips and clearance checks; they do not establish Irvine interchangeability. Use hardware approved for the chosen Irvine rail rather than assuming the existing MCD clips can be reused.

Confirm operation and color separately. The linked current builder is a cordless Slow-Rise selection; choosing it does not preserve the original MCD motorized operation, wiring or controls. Confirm the desired operation, roll direction, mounting arrangement, night fabric, day screen and rail color before ordering. Suede is a current builder color, but screen photographs do not guarantee a match to the original. The older color cards below are references to review through the current product links, not proof of MCD replacement fit. The old Black Vinyl URL is unavailable, so that card now opens the current builder; no current fabric equivalence is established.