JULY 28 - 29, 2023

Thank you to the 800+ attendees who made 2022 our biggest year yet!

The 2023 event is scheduled for July 28 - 29. This year's theme is "The Layout" and will feature clinics with a heavy emphasis on the designing, planning, adding of scenery and operation of layouts. Mark your calendar and prepare for a high quality modeling event! Scroll down to learn more about the event.

16th annual event
38,000+ square feet
5,000+ models
200+ vendor tables
20+ historical societies

St. Louis RPM

The largest annual RPM event in the U.S.

This two day event features over 38,000 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 200 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. Admission is $35 for Friday & Saturday, $25 for just Saturday. 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 5,000+ 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

“The quality of this event exceeded my expectations.”

- William
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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.

View Historical Societies
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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 some of the 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.

Learn More

STL RPM 2022

A glimpse into the past

Still not convinced? Check out Ken Patterson's review of STL RPM 2022, courtesy of the Model Railroad Hobbyist magazine.

July 28 - July 29, 2023

Mark your calendar

Join hundreds of fellow modelers from around the nation at the Gateway Convention Center in Collinsville, IL on July 28th and July 29th for the time of your life!

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