Four removable pieces of skirting were fixed to each side of the later Tigers, to prevent mud being thrown up by the wide tracks.
This is the underside of a side skirt from the Tiger at Bovington Museum, before restoration. The German red primer can be seen where the mounting blocks attached to the skirt. I don't know if the rest of the paint is original.
This is the profile of the standard skirt. The slanting face is at 60 degrees to the vertical [1] . There is a full end piece, shown here, at both ends of the skirt array.
The width of the skirt is 280mm [1] ; adding the thickness of the sheet metal and the vehicle's nominal hull width, gives exactly the figure of 3705mm that is quoted by Spielberger [2, see page 208] .
There were stiffeners within the skirt array; one at the middle of each skirt piece, and one at each internal end. This is a stiffener.
Therefore, at each joint within the skirt array there were two stiffeners.
[1] Survey of vehicle 250122, Bovington, by David Byrden
[2] Der Panzerkampfwagen VI und seine abarten, Walter J. Spielberger, Motor Buch Verlag