v3.26.1
Cover
Jun. 22, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 22, 2026
Entity File Number 333-294940
Entity Registrant Name RMX INDUSTRIES, INC
Entity Central Index Key 0001970743
Entity Tax Identification Number 88-2960484
Entity Incorporation, State or Country Code NV
Entity Address, Address Line One 4514 Cole Ave
Entity Address, Address Line Two Ste. 600
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 92075
City Area Code (866)
Local Phone Number 706-4276
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false