How to Choose HO or N Scale Model Trains

Measure Available Area

• 1

  Measure your available space with a measuring tape, beginning with the longest possible edge, which is typically against a supporting wall. Then measure away from the edges to see how much room you will have for turn arounds.

• 2

  Familiarize yourself with the minimum radial turns for both scales to judge what can fit in the space you have. HO minimum radius is 18 inches, which means a 36-inch circle at least, and will fit comfortably on a 4-by-8-foot sheet of plywood. N scale minimum radius is 10 inches, so curves should have at least 20-24 inches to function properly.

• 3

  Draw a working plan for each scale using graph paper by marking the edges of the available space first with a straight edge and pencil.

• 4

  Plot the potential plan for each scale on the graph with two different colors representing HO and N scale allowing them to overlap in places for comparison. Use a drafting compass to plot the curves accurately. This will give you a relative idea of what you can do in each scale.

Define Your Expectations and Limitations

• 5

  Research prices by going to local hobby shops or searching for train components on retailer websites to determine what you can afford.

• 6

  Draw up a budget that includes expenses for lumber, wire, track, scenery, power pack and modeling supplies as well as train components. Generally speaking, N scale is cheaper per part, but may require more parts because it is smaller.

• 7

  Evaluate your skill level based on previous modeling experience. N scale requires more skill because it is smaller, but moderately skilled modelers can build good looking N scale layouts and beginners can do well with patience.

• 8

  Define your expectations. If you want more visible detail, HO scale may be the best choice. If you want more trains running simultaneously or variations in scenery, N scale will be better.