Inside the ceiling 38 with 50 light steel keel refers to what it means simple question joke

You're talking about gypsum board ceilings, also known as large slab ceilings.

38 is the main bone, and the 50 accessory bones of the 50 horizontal accessory bones are fixed with the 38 anti-50 pendant arranged horizontally and vertically on the top, and the distance from the center line to the center line is 350mm*450mm

The width of the 38 bones is 38 mm, and the width of the 50 bones is 50 mm, and they are both 3 meters long.

Just use a wooden keel at home, why use a light steel keel, now the net height of the house is not high, and the boom also takes up space. It's good if you use white pine sawn timber to make the keel.

Generally, the ceiling is 30*40mm, the light steel keel is divided into the main keel and the auxiliary keel, the main keel is commonly known as 38 bones, that is to say, the specification is 38mm 3000mm whole profile, and the auxiliary keel is commonly known as 50 bones, that is to say, the specification is 50mm 3000mm

This is generally used in large hotels, restaurants and entertainment!

Generally, as long as the wooden keel is used at home