Set the tongue of the fifth-wheel trailer onto a scale to measure the weight. Alternatively, use a bathroom scale to weigh yourself and make a note of your weight.
Stand on the scale with each item you are moving, note the weight. Subtract your body weight, jot down the weight of the item and repeat.
Add the total of the items, if the total equals the amount of weight required to lighten the load you are done.
Shift these items to the back or central living area of your fifth-wheel trailer. The weight should be evenly distributed.
Weigh the fifth-wheel trailer tongue to ensure proper weight. Use a scale designed for weighing a trailer tongue.