Article · Wikipedia archive · Last revised Jun 12, 2026

Reed level

A reed level is an Arabian invention used for determining the level in construction. It involves creating a hole through a long, straight reed and pouring water into its center. The reed is considered level when the flow of water out of both sides is equal. This device serves the same purpose as a spirit level.

Last revised
Jun 12, 2026
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≈ 1 min
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Water is poured into the center top of the reed grass. The total amount of water, as illustrated by A(100%), needs to be equally distributed across B1 and B2. Equal output at both sides indicates that the reed is horizontally leveled. source ↗

A reed level is an Arabian invention used for determining the level in construction. It involves creating a hole through a long, straight reed and pouring water into its center. The reed is considered level when the flow of water out of both sides is equal.1 This device serves the same purpose as a spirit level.

References

References

  1. Hill, Donald R.; al-Hassan, Ahmad Y. "Engineering in Arabic-Islamic Civilization". history-science-technology.com. Retrieved 11 September 2016.