nominal dimension

In that case its actual thickness is closer to the nominal dimension.

Early standards called for green rough lumber to be of full nominal dimension when dry.

See dimensional lumber for a full discussion of the relationship of actual and nominal dimensions.

Nominal dimensions do not take into account shrinkage during drying or trimming necessary for smoothness.

Lumber's nominal dimensions are given in terms of green (not dried), rough (unfinished) dimensions.

With softwood, a nominal dimension of one inch in thickness actually measures about three-quarters of an inch.

Softwood having a nominal width of two through six inches actually measures about a half-inch narrower than the nominal dimension.

The thickness and width by which lumber is designated are nominal dimensions (those to which pieces are sawed at the sawmill).

An interference fit is generally achieved by shaping the two mating parts so that one or the other, or both, slightly deviate in size from the nominal dimension.

An example of the concept of tolerance is a shaft for a machine is intended to be precisely 10 mm in diameter: 10 mm is the nominal dimension.

In practice the items referred to above will not be identical and the departure from the nominal dimensions will determine the degree of interchangeability and hence the quality of the batch.

The great advantage of ETRTO sizing is that it is unambiguous; previously, nominal dimensions were used which were interpreted in different ways by different countries and manufacturers - a problem for the end user.

The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are specified by actual inside diameter, outside diameter, or wall thickness.