The architectural design of the building is defined by strict symmetry, with a strong focus on openings that allowed light and air to flow freely. The primary approach among commentators is that the structure featured windows designed specifically to draw in sunlight and fresh breezes while offering a clear view of the outside world.
Other scholars offer different perspectives on these structural elements. Some suggest the design refers to the sides of the building being shaped like lintels, focusing primarily on its doors and entryways [רלב״ג]. Another approach shifts the focus upward to the roofing system, explaining that long wooden beams functioned as lintels. In this view, the ends and angles of these overhead beams were measured and aligned precisely opposite one another [רש״י].
The vertical layout of the building also reflects careful planning. Most commentators agree that the walls featured three distinct rows of windows, stacked one above the other. Alternatively, some explain that these three rows were actually made of cedar boards, which served as dividers between the windows [רד״ק, אברבנאל].
Great care was taken in the exact placement of every opening to ensure absolute symmetry. The windows or doors on one wall were aligned perfectly with those on the facing wall, and this exact parallel arrangement was repeated across all three rows along the height of the building [מצודת דוד, שטיינזלץ, אברבנאל]. Expanding on this layout, some note that windows were installed on three of the building's walls [רד״ק]. Another perspective suggests that the structure was divided into three lengthwise sections, with this perfectly parallel window arrangement maintained within each individual segment [מלבי״ם].