The craftsmanship of the Temple vessels combined precise engineering and complex design, featuring unique architectural transitions from square bases to round tops. The intricate structure of the water stands and the lavers placed upon them reveals a seamless blend of practical utility for holding water and striking aesthetic beauty.
At the top of the stand was a capital that served as the roof of the structure. This capital was shaped like a sloped hat with a hole in the center [רש״י], or it formed a round level specifically designed as a seat for the laver [מלבי״ם]. Rising from this upper frame was a prominent top section. The primary approach among commentators is that this refers to the mouth of the laver itself, which extended upward by a height of one cubit above the capital [מלבי״ם, רלב״ג, אברבנאל, ביאור שטיינזלץ]. Others suggest this upward extension was actually a mounting bracket or base emerging from the capital [רש״י, מצודת דוד]. A third perspective associates this raised section with ornamental additions designed to enhance the structure's beauty [רד״ק].
The opening of the capital was round, measuring a cubit and a half across [רש״י, מלבי״ם]. It functioned as a stable, comfortable mount engineered specifically to receive the laver smoothly [מצודת דוד, ביאור שטיינזלץ]. A slightly different view suggests that the description of this round base actually refers to the circular shape of the laver itself [רלב״ג, אברבנאל]. The splendor of these vessels was further highlighted by intricate carvings and decorations along the lip or circular partition of the capital. These embellishments included floral patterns [רש״י] and other beautiful designs crafted purely for elegance and visual appeal [מלבי״ם, מצודת דוד, רלב״ג, אברבנאל, ביאור שטיינזלץ].
Beneath this ornate circular top section, the lower frames that supported the entire structure were entirely square, without any rounded elements [מצודת דוד, רלב״ג, רד״ק, ביאור שטיינזלץ]. The distinct shape of the lower frames emphasizes the unique architectural transition of the vessels. The stands were strictly square at their base, while the lavers and upper components resting upon them were completely round. This design choice mirrored the structure of the great copper sea crafted by King Solomon, which similarly transitioned from a square bottom to a round top [רד״ק, אברבנאל].