A Door That Closes Without Sealing
Closing a mandir solves real problems and creates one. It keeps the dust of a shared room off the deities, it lets the shrine be shut when the household is away, and it suits families who close the mandir at night as a matter of practice. What it does badly is deal with smoke. A ghee lamp or an agarbatti inside a sealed box has nowhere to send what it produces, so the interior faces darken far faster than they would in an open mandir, and on a pale timber that shows sooner still.
Cutting the centre door as jaali is the resolution rather than the compromise. Lattice gives you a closed front for dust and privacy while leaving a continuous path for air, so smoke keeps moving instead of settling. It also changes what a shut mandir looks like: rather than a blank panel, you see the deities partly through the lattice, and a lamp burning inside throws its light out through the openings. Cutting jaali by hand is slow work, since each opening is worked individually and the bars between them are narrow, but a printed or moulded lattice would defeat the whole purpose because nothing passes through it. Every element here is carved and polished by hand by master Indian artisans.