First of all, you need to make a close assessment of the future. Have a good look, and make an idea about its weight, size and shape. If you want to move it through the door, have a look at the size of door. Spend some time on this step, and find out the best possible way to move the furniture.
Remove the attached parts, if there are any. If you are intended to move a cupboard, you need to ensure that all the shelves and drawers are empty. This will help you avoid damage. Moreover, by removing the attached parts, you can make the furniture less heavy. Don’t forget to lock all the doors of the cupboard.
Always use sliders to move the heavy furniture. Lift each side one by one, and place the furniture on the slider. Another good option is to use a trolley, but it might be very difficult to put the heavy one on a roller.
Use long rods to lift the furniture. If you sliding a heavy tall furniture through the door horizontally, don’t forget to place some foam underneath, as it will help you avoid scratches.
Try to decrease the friction. You can do it by pouring washing detergent on the floor, but don’t make it too slippery. Always push the lower part of the tall furniture, because you might make shake it up by pushing the upper portion.
If you want to move furniture up or down the stairs, always use sliders and use your shoulder to push. Your own safety should be the top priority.