12 pages
Dense, citable tables: scale proportions and track gauges, minimum radius by equipment, turnout geometry by number, NMRA RP-20.1 car weights, rail codes, wire gauge by bus length and grade percentages.
Every page is researched from manufacturer specifications, instruction manuals, published NMRA standards and recommended practices, and the consensus of verified owner reviews, not hands-on testing. Every table on this site is plain HTML you can quote, and every calculator shows its formula on the page.
Last updated
Twenty five lengths, which is 75 feet of track and enough for most home layouts in one purchase at the lowest price per foot.
Best for: laying a whole HO layout in code 83
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Foam roadbed in pre-cut strips with the shoulder profile already there. Quieter than cork and it will not dry out and crumble the way cork can after some years.
Best for: HO roadbed that stays quiet
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A physical drawing template of Atlas track geometry. Drawing a plan with the real curve radii prevents the commonest planning error, which is a curve that does not exist.
Best for: drawing an HO plan to real geometry
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A complete double track oval in HO Unitrack at a 730 mm radius, which is about 28.7 inches and broad enough for most equipment. Unitrack joints are positively locking and electrically reliable.
Best for: an HO layout that must be assembled and taken down repeatedly
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