What Does Typ Mean On An Engineering Drawing

What does "TYP" or "TYPICAL" mean in drawings?

I've seen the terms in many drawings. Is it like a standard or something?

level 1

TYP means it's typical to all identical features. So if there's a few bolt patterns and only one is dimensioned with "TYP" on all DIMs, then all the bolt patterns are exactly the same.

level 2

Same goes for fillets, chamfers, etc.

level 2

Could also be written as 14x 0.25" if you had 14 holes each 0.25 in dia.

level 2

Ok thanks for clearing that up. I usually put "4X" or something.

EDIT: I don't understand the down votes on the post. Just making conversation.

level 1

I like to put an actual quantity with it for clarity. Like "TYP OF 4" or something to that effect .

level 1

On that note is there a standards sub

level 1

That detail is typical UON. 😉

level 2

Cake day · 5y Revit

or UNO if you are in our office

level 1

· 5y PTC Creo

If a dimension or feature appears repeatedly and its obvious they are the same e.g. a bunch of holes, it's more convenient to say TYP than 16X or 100X or 768X, or 1000000X.

level 1

· 5y AutoCAD

If it's a unique repeating feature, then TYP is fine. For clarity, and if there are similar but different features, use <count>X before the dimension or callout instead.

level 1

It's supposed to mean that the dimension or note that precedes it should apply to all similar instances of that dimension, note or feature. It is however up to interpretation unfortunately, because it is not covered under the ASME Y14.5 specification. A better way to deal with this situation is to use "2X" or "190X" or whatever your situation requires. Check out section one of ASME Y14.5-2009 (don't remember the subsection exactly - the part about patterns of features) for examples and the associated rules.

level 2

Not necessarily. If the specific feature you are dimensioning uses GD&T, the the X symbol works best. Features such as fillets and champers don't normally need such a level of control as they are generally used to remove sharp edges. In that case you are much better off using TYP.

level 1

"Take Your Pick" - Don Day, GDT guru