In addition to the regular bi-monthly Journal, supplements are also produced on an occasional basis. These are available for members to purchase from the NGS Shop whilst stocks last. Examples of those produced include:
- Plans for Small Layouts
- Making Buildings in Cardboard
- Layout Design and Planning
- N Gauge Supplier Compendium
- N Gauge Modeller Jargon Buster
- The N Gauge Society 1967 – 2017 – (A special 44-page souvenir booklet celebrating the 50th anniversary and sent to all members with Journal 6/16)
- Scenic Detail & Inspiration
- Tips for N Gauge Modellers
- BR Blue Supplement
