JULY 30 - 31, 2021

While the world recovers from crisis, one thing remains true. More than ever, prototype modelers are ready to share their work.

Hundreds of prototype modelers will safely gather at the nation's largest annual Railroad Prototype Modelers meet in July. Join us.

15th annual event
28,000+ square feet
4,000+ models
100+ vendor tables
20+ historical societies

St. Louis RPM

The largest annual RPM event in the U.S.

This two day event features over 28,000 square-feet of high-quality models, displays, visiting prototype layouts, hands-on learning centers, and more in the modern, professional Gateway Convention Center. We feature presentations by nationally-recognized historians and modelers, over 20 Railroad Historical Societies and 120 tables of hand-picked scale model vendors—NO swap meet stuff! Thousands of models brought by modelers like you will be on display. Home layout tours are held on Friday night as well as modular layouts displayed inside the Gateway Center. We have evening social events, fellowship, and more. Our end-of-meet door prize drawing is the best in the business. Attendee registration is on-site, upon arrival and before admission to any RPM event. Registration in advance is only required for vendors, historical societies and clinicians.


Our Mission

Discover what we stand for

We strive to bring you a high quality modeling event, in a professional atmosphere, where modelers may meet, discuss, purchase and learn to make the most high quality models regardless of scale. Models are not judged or graded, but are displayed in a well-lit, free-flowing area where exchange between modelers is encouraged.


Your models are the heart of St. Louis RPM

Bring your models, finished or in progress, for display and discussion. This is a modeler’s event! Bring your models of all scales, gauges, and sizes from all eras. Attendees bring 4,000+ models every year. Bring your models and be part of this annual event. Locomotives, structures, freight cars, dioramas, vehicles are all welcome. Those bringing models are encouraged to download and fill out the various model forms and print them off. It saves time and looks great! There are no contests. The purpose of our event is to teach, learn, collaborate, and meet your fellow modelers from around the nation. See the Photo Gallery for previous years models.

Steam Engine
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Educational Clinics

We offer a minimum of 18 clinics over the two-day meet consisting of a 50 minute presentation given by nationally known modelers, historians and industry experts. Presentations usually feature detailed explanations of techniques, processes as well as advanced tools and technologies including weathering, prototype railroad information, scenery and structures.

Clinic Schedule
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Quality Vendors

St. Louis RPM includes an exciting array of hand-picked scale model vendors. No swap-meet stuff! Our vendors travel from all over the U.S. to bring you the finest quality detail parts, decals, resin kits, prototype photos, laser kits and brass models. To see the great list of vendors that attended the latest STL RPM and their products, click the button below.

View All Vendors
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Historical Societies

Our event includes the largest annual gathering of railroad societies in the US! 20 or more societies, representing railroads from around the US, will be on hand with books, maps, reference material, models, and more to aid your research and modeling efforts. The railroad historical society meeting is usually held on Friday evening.

Learn More
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Learning Stations

St. Louis RPM offers as many as six locations in the main hall where you can learn advanced modeling techniques from the some of industry’s best companies. Learn how to weather your freight cars, build track and switches, install sound systems in locomotives, and other advanced processes in a one-on-one atmosphere with a hands on approach to modeling.

STL RPM 2019

A glimpse into the past

Still not convinced? Check out Ken Patterson's review of STL RPM 2019, courtesy of the Model Railroad Hobbyist magazine.

July 30 - July 31

Mark your calendar

Join hundreds of fellow modelers from around the nation at the Gateway Convention Center in Collinsville, IL on July 30th and July 31st for the time of your life!

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