Here are the styles they come in-
And here are the color choices-
Visit HERE for an example of the differences between a regular frame, double stack and twin double stack frame.
Here are the outer dimensions for the different styles/sizes :
(*Note - These are for single stack frames only. For double/twin double 8x10 and smaller, add an additional 4" to the height, and 4" to the width of the frame. For larger than 8x10, add an additional 6" to the height, and 6" to the width of the frame)- https://theorganicbloom.3dcartstores.com/documents/OuterDimensions.pdf
I have color swatches that you may borrow and take home to determine the best colors for the rooms you will be adding these frames to!