Document and Entity Information - USD ($)	3 Months Ended
	Dec. 31, 2016	Feb. 21, 2017
Document And Entity Information
Entity Registrant Name	Road Marshall, Inc.
Entity Central Index Key	0001657249
Amendment Flag	false
Current Fiscal Year End Date	--09-30
Is Entity's Reporting Status Current?	Yes
Is Entity a Well-Known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Document Type	10-Q
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 500
Entity Common Stock, Shares Outstanding		20,000,000