What Is The Black Diamond On A Tape Measure

The small diamonds are typically seen at the 19 2 inch mark on the tape measure.

Much as the 16 inch mark stands out for contractors looking to fasten drywall to the studs the black diamond represents the 19 2 inch spacing traditionally assigned to roof trusses. The black diamonds are. Most people are quite confused as to what the black diamonds are for. The first black diamond is at 19 2 and after that black diamonds appear at 38 4 57 6 76 8 and 96 or 8 feet.

My understanding is that the black diamond at 19 2 is mainly because although you would place pine joists at 12 of 16 for floors you are permitted by code to place p lam manufactured laminate joists farther apart and still be structurally equal to pine joists at 16 o c. The black diamonds give you the assistance that you need with your floor trusses. The numbers that were mentioned above also come into play here. While we all know what the inches and centimeter markings are on the tape measure you likely don t know what the black diamond on it means.

It stands to reason those who make money for building will need tape measures that are a little more in depth than those of us who just get them out to check our height. The black diamonds as they re commonly called sometimes shown as black circles instead are actually stud or joist marks. They represent the middle of the studs. The significance is not lost on us.

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Image by josé manuel de laá from pixabay. That s why we ve decided to let you in on. Starting at the 19 2 inch mark the black diamond helps you find the center of the. Mystery tape measure markings here s where the black diamonds come in.

That fractional measurement is based on supporting an 8 foot plywood panel with five evenly spaced trusses. The black diamonds on the tape measure represent that spacing.