This window includes a single silver low-e coating on surface 2. It is paired with a Surface 4 Hard Coat Low-E Coating. The windows are built with 1/8” glass. With the protective white vinyl wrap on the perimeter, the resulting window dimensions are 7.2 x 7.2 x 0.95 inches. A 1/2" Super Spacer is standard, but other spacer thickness options are available.