Some of the areas I mow in are not exactly trailer friendly if you know what I mean. So I am forced to use a 21" when I need to be using a larger mower. Is there a ramp system (besides 2 planks of wood!) that would enable me to easily load an unload a larger walk behind into and out of my truck bed? Does anyone use something like this? Any information would be helpful. For those of you who do use two planks of wood, how do you keep them from sliding? Thanks!