Benchwork

The trains run on tracks that are supported by roadbed that in turn is supported by your layout's benchwork.

Modeler's Moment - Provide clearance for your trains

When you're planning and building benchwork, be sure to leave enough clearance around your track for your largest trains to pass through unobstructed. Cut away sections of wood and place turnouts and turnout motors so they won't block your trains. Run your tallest, longest and widest trains through narrow sections until they will pass through without problems then leave a little extra room for future acquisitions. If there isn't enough clearance before you add scenery, then you'll never have enough clearance.

Modeler's Moment - Threaded rods for helix supports

Using threaded rods for helix supports can be a quick and simple way to get your helix up. However, doing so requires precise placement of each helix lap so the rod can pass through the benchwork uniformly over the entire rise of the helix and over time the nuts may work themselves loose if they aren't soldered (think plumbing solder here...) in place.