12 gauge ceiling grid wire
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Next, determine the location of the main runners. You will need to install hanger wires to support the main runners. Hanger wires should be spaced no more than 4 feet apart, and they should be attached to the ceiling joists. Use a power drill to make holes in the joists and insert the wires securely, ensuring they are taut and hanging down to the level of the desired grid height.
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Moreover, the construction industry has seen the rise of innovative applications for laminated gypsum in fire-rated assemblies, encapsulating pipes and ductwork, as well as in acoustic walls designed to reduce noise pollution
laminated gypsum

Flush ceiling hatches are designed to be level with the surrounding ceiling, making them virtually invisible when closed. This design choice is particularly advantageous in modern spaces where clean lines and minimalist aesthetics are desired. Unlike traditional access panels that protrude and disrupt the visual flow of a room, flush hatches blend effortlessly with the ceiling, allowing architects and designers to maintain the intended look of a space.