We use a 6ooo# Hyster dual tire forklift. We have had ok success on snow. Our timber storage area is gravel which helps. Our next forklift will be an rough terrain type with atleast a 6000# capacity but I would like to have one with 8000# capacity. It is not uncommon to have timbers delivered from the supplier and have the forklift barely able to lift a bundle. Having a standard type forklift that is not "too large" allows us to park it inside at night where we keep the temperature at 50 degrees vs outside where it can be below 0 degrees. Also with employees I prefer a manufactured forklift versus a "homemade" item for liabiblity reasons. Forklift safety courses are also a good idea for our employees.