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Stop Guessing St. Louis County Exhibit Rules

Get St. Louis County Circuit Court (21st Judicial Circuit)-compliant exhibit stamps in under 2 minutes. Max file size: 25 MB.

  • St. Louis County plaintiffs mark exhibits with Plaintiff's Exhibit 1, 2, 3..., and defendants use Defendant's Exhibit A, B, C....
  • St. Louis County's primary exhibit rule is 21st Judicial Circuit Rules of Court.
  • St. Louis County courts e-file through Missouri Courts E-Filing, with a maximum file size of 25 MB.
  • St. Louis County is part of the St. Louis County Circuit Court (21st Judicial Circuit).
  • Clayton courthouse (st. louis suburb) -- 21st judicial circuit, separate from the independent city of st. louis circuit.
  • Second largest missouri county.
  • ExhibitPrep generates court-compliant St. Louis County exhibit stamps entirely in the browser, with files never leaving the user's device.
MissouriMissouri Courts E-Filing25 MB limit

Quick Reference

Plaintiff MarkingPlaintiff's Exhibit 1, 2, 3...
Defendant MarkingDefendant's Exhibit A, B, C...
Court SystemSt. Louis County Circuit Court (21st Judicial Circuit)
File Size Limit25 MB
Primary Rule21st Judicial Circuit Rules of Court

Key Requirements for St. Louis County

  • Clayton courthouse (St. Louis suburb) -- 21st Judicial Circuit, separate from the independent City of St. Louis circuit
  • Second largest Missouri county
  • Statewide 14-day-before-trial exhibit exchange deadline (Mo. Sup. Ct. R. 56)
  • Documents must not be sent directly to judges via email
  • E-filing capped at 25 MB through Missouri Courts E-Filing

Local Practice Notes

St. Louis County Circuit Court (21st Judicial Circuit), based in Clayton, is a separate suburban circuit from the independent City of St. Louis circuit -- the two don't share local rules just because the names are similar. Missouri's statewide exhibit exchange deadline runs 14 days before trial under Mo. Sup. Ct. R. 56, and filings go through the Show-Me Courts e-filing system with fees payable by credit card, debit, or e-check. As one of the state's larger circuits, St. Louis County typically enforces pretrial deadlines strictly; confirm the assigned division's specific requirements with the clerk before trial.

Ready to Stamp Your St. Louis County Exhibits?

ExhibitPrep creates professional exhibit stamps compliant with St. Louis County Circuit Court (21st Judicial Circuit) requirements. Preview free—pay only when you're ready to download.

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Opens the tool set up for St. Louis County — plaintiff: Numbers starting at 1; defendant: Letters starting at A.

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Typical St. Louis County Exhibit Timeline

Discovery
Gather exhibits
Pre-Trial
Mark & exchange
Trial
Present exhibits

E-filing available for Circuit Courts. Fees paid by credit card, debit, or e-check. Contact Help Desk at (888) 541-4894.

St. Louis County Exhibit FAQs

How do I mark exhibits for St. Louis County courts?

In St. Louis County, Missouri, plaintiffs typically use Plaintiff's Exhibit 1, 2, 3... while defendants use Defendant's Exhibit A, B, C.... Always verify with the specific court division's local rules.

What is the e-filing system for St. Louis County?

St. Louis County uses Missouri Courts E-Filing for electronic filing. The maximum file size is typically 25 MB. Check with your specific court for exact requirements.

What are the exhibit rules for St. Louis County Circuit Court (21st Judicial Circuit)?

E-filing available for Circuit Courts. Fees paid by credit card, debit, or e-check. Contact Help Desk at (888) 541-4894. Always verify current requirements with the court clerk or your specific judge's standing orders.

Does ExhibitPrep work for St. Louis County courts?

Yes! ExhibitPrep creates professional exhibit stamps that comply with St. Louis County, Missouri court requirements. Our tool supports the marking conventions used in St. Louis County Circuit Court (21st Judicial Circuit).

Don't Risk Having Your Exhibits Rejected

Download the checklist so you know exactly what St. Louis County courts require

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St. Louis County Courthouses

Specific filing requirements vary by courthouse. Select your courthouse for detailed information:

Last updated: 2026-03. Always verify current requirements with your court.