Cored holes

Cored Holes

Optimum greatest depth of cored holes as related to diameter is shown in the table. The values shown for hole depths are subject to the draft requirements.

Cored Holes

*For cores larger than 25.4 mm in diameter the diameter depth shall be 1:6.

Note - The depths shown are not applicable under conditions where small diameter cores are widely spaced and, by design are subject to full shrinkage stress