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June 19, 2019

What do the black triangles and diamonds on tape measures mean?

Screen Shot 2019-06-16 at 9.56.43 AM

I thought you'd never ask.

From the Epoch Times:

Perhaps the most mysterious of all the markings on your tape are small black triangles and diamonds.

Look closely and you'll see they appear at intervals of 16 inches and 19.2 inches.

What could be the point of these?

The answer is two of the key elements for building a house: studs and joists.

Most building codes mandate that studs be spaced 16 inches apart, so the tape will help you stay on the right side of the law as you construct (as well as making sure your wall can safely bear the load it needs to).

Joists, on the other hand, should be 19.2 inches apart.

Since plywood often comes in 8-feet sections, you're in luck.

Divide 8 feet (or 96 inches) by 19.2 and you get 5.

Thus, one sheet of plywood will cover 5 joists and you won't have to do any cutting.

June 19, 2019 at 02:01 PM | Permalink


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