This house is a completely new one built exactly where our old house was. Both had/have walk out basements in the back. The old house had a garage in the basement which exited to the back. Half the backyard was blacktop. Getting machinery and materials into the shop was easy since you could drop it right in front of the shop door. The backyard in the new house is all garden, stepping stones and permeable patio. There is no way to bring a 700lb machine into the shop that way and I didn't want to ruin my vision of a natural outdoor space by creating one. So, I put in an I beam trolly system at the back of the garage. It works quite well and gets used more than I thought it would.