Check dimensions are additional dimensions in integrated dimensioning that you can use for checking, usually in thinner text than other dimensions. They are not required for fabrication or erection, and they are mainly used for checking detailing, not for assembling parts.

Tekla Structures uses work points to create check dimensions. Work points can be either the points between which the part was originally created, or the intersection point of the reference lines of the parts. The reference line location depends on the part position At depth set in part properties. If it is Middle , the reference line is the center line, if it is Front , the line is located in the part front edge, etc.

Knock-off dimension is a special type of check dimension that dimensions the distance from work points to the end of the part.