Sistimi ea siling ea grid e arotsoe ka li-grille main studs, li-studs tsa bobeli le sistimi e kaholimo ea keel.
Li-grille main studs le sub studs kaofela ke li-slats tsa mofuta oa tšepe tse khethehileng. Sistimi ea siling ea grille ke siling e bulehileng ea mokhabiso e entsoeng ka motsoako oa li-grille main le sub-bone strips ka lifapano tse otlolohileng le tse rapameng.
Sistimi ea siling ea grid e na le phello e ntle ea moea, ts'ebetso e phahameng e sa cheng, ho kenya mokhoa o bonolo, sebopeho se boreleli, likarolo tse ruileng, phello e bulehileng ea mahlakore a mararo, ponahalo e ntle ka mor'a mokhabiso le mebala e metle.