The foundation of the Tabernacle relied on heavy, stable sockets made from the melted silver of the Israelites' half-shekel donations [רש״י]. Building this solid base required absolute precision in both weight and number. Out of the total collected contributions, exactly one hundred talents of silver—equivalent to three hundred thousand shekels—were dedicated to casting these sockets. The small remainder of the donated silver was then used for other needs within the Tabernacle [קאסוטו].
These silver sockets were distributed between two specific areas. The primary approach among commentators calculates that the main structure of the Tabernacle contained forty-eight wooden boards. Because each board required two sockets, exactly ninety-six bases were cast for this main structure [ביאור שטיינזלץ]. The remaining four silver sockets were made for the pillars holding up the dividing curtain, bringing the total to precisely one hundred. Any additional sockets used outside in the Tabernacle courtyard were made of copper rather than silver [רש״י, הדר זקנים, חזקוני].
The distinction between the general holy area and the dividing curtain is deliberate. While the main structure is broadly considered holy, the curtain is singled out because its specific function was to separate the holy area from the Holy of Holies. Thus, the distribution of the sockets essentially highlights the foundations of both the Holy and the Holy of Holies [רמב״ן, ביאור יש״ר].
Each of these hundred bases was cast using exactly one full talent of silver [ביאור שטיינזלץ, קאסוטו]. A single talent is exceptionally heavy, and this immense weight was an intentional engineering choice. It created a strong, permanent foundation that firmly anchored the Tabernacle to the ground, ensuring the structure remained completely immovable [צפנת פענח].
Beyond the physical construction, the exact count of one hundred carries deep symbolic meaning. The hundred heavy sockets supporting the Tabernacle correspond to the hundred blessings that the sages instituted for a person to recite each day. Just as the silver bases supported the physical structure, these daily blessings form the spiritual foundation of everyday life [קיצור בעל הטורים, חומת אנך]. Furthermore, the merit of the Israelites donating these silver talents served as a spiritual protection. Because of this contribution, God did not judge the people harshly, sparing them from severe punishment despite the sin of the Golden Calf [שפתי כהן].