Were the proportions of the Christian cross ever standardized?

During the first two centuries of Christianity, the cross may have been rare in Christian iconography, as it depicts a purposely painful and gruesome method of public execution. The Ichthys, or fish symbol, was used by early Christians. The Chi-Rho monogram, which was adopted by Constantine I in the 4th century as his banner (see labarum), was another Early Christian symbol of wide use.

However, the cross symbol was already associated with Christians in the 2nd century, as is indicated in the anti-Christian arguments cited in the Octavius of Minucius Felix, chapters IX and XXIX, written at the end of that century or the beginning of the next,[2] and by the fact that by the early 3rd century the cross had become so closely associated with Christ that Clement of Alexandria, who died between 211 and 216, could without fear of ambiguity use the phrase τὸ κυριακὸν σημεῖον (the Lord's sign) to mean the cross, when he repeated the idea, current as early as the apocryphal Epistle of Barnabas, that the number 318 (in Greek numerals, ΤΙΗ) in Genesis 14:14 was interpreted as a foreshadowing (a "type") of the cross (T, an upright with crossbar, standing for 300) and of Jesus (ΙΗ, the first two letter of his name ΙΗΣΟΥΣ, standing for 18),[3] and his contemporary Tertullian could designate the body of Christian believers as crucis religiosi, i.e. "devotees of the Cross".[4] In his book De Corona, written in 204, Tertullian tells how it was already a tradition for Christians to trace repeatedly on their foreheads the sign of the cross.[5]

The Jewish Encyclopedia says:

The cross as a Christian symbol or "seal" came into use at least as early as the second century (see "Apost. Const." iii. 17; Epistle of Barnabas, xi.-xii.; Justin, "Apologia," i. 55-60; "Dial. *** Tryph." 85-97); and the marking of a cross upon the forehead and the chest was regarded as a talisman against the powers of demons (Tertullian, "De Corona," iii.; Cyprian, "Testimonies," xi. 21–22; Lactantius, "Divinæ Institutiones," iv. 27, and elsewhere). Accordingly the Christian Fathers had to defend themselves, as early as the second century, against the charge of being worshipers of the cross, as may be learned from Tertullian, "Apologia," xii., xvii., and Minucius Felix, "Octavius," xxix. Christians used to swear by the power of the cross (see Apocalypse of Mary, viii., in James, "Texts and Studies," iii. 118).

SDA

I would think that a cross should be wide enough for an average mans outstretched arms to reach plus a bit longer, and the length of the cross should be about the average man's height, plus a bit longer and allowing for the part that goes into the ground, perhaps three feet.

Maybe not standardized by our standards today, since we do not crucify people. But in Roman days, I would say that they probably did have a set of standards. Perhaps seven feet wide by about ten feet long, would be a good standard.

If they had numerous crucifixions, they probably had the timber pre cut and ready to go.

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>> Christians: Do not commit "ADULTERY". Was this >> commandment ever nailed to the cross?         None of God's Law was ever nailed to the Cross or otherwise abolished. The only thing nailed to the Cross was the written record of our sins (Deut. 31:28-29) -- because He paid the Price (2Tim. 1:8-10). >> Does this Commandment only apply to the Jewish people >> today? What about Christians and everybody else in the >> world?         All of God's Law still applies to all people -- believer and non-believer alike. The Final Judgment is still based upon God's Law. That cannot be changed. The only reason true followers of Christ are not subject to the Final Judgment is because Jesus Christ already paid the Price for our violations of God's Law. God bless. Fireball: >> all commands are still in force but sunday is allowed for >> Christians to keep now...         Who allowed this? Not God. Not Christ. Not Paul. Not Peter. You dare ignore God's Commandment to keep the Seventh-day (Saturday) Sabbath holy? Good luck with that. God bless. Alicia: >> Yes, it applies to everybody. Jesus said the two greatest >> commandments were to love the Lord and to love your >> neighbor (neighbor = people). To commit adultery is to >> violate the latter.         ...and to desecrate the Seventh-day (Saturday) Sabbath is to violate the former. God bless.

If I had to hazard a guess, I would say that its proportions have to do with the Golden Mean.