Can plastic anchor sleeves be manufactured in a custom length or diameter?

No. The tooling and equipment used to manufacture plastic anchor bolt sleeves are designed exclusively for the standard sizes shown in our sizing chart.  These standard sizes are mass-produced using tooling that has a large set-up cost and engineers design around these standard-sized sleeves. Essentially this means that the standard plastic anchor bolt sleeves are the only sizes available and that custom plastic sleeves are not an option. In the event that a standard sleeve cannot be used, then potentially other solutions should be considered such as welded pipe sleeves.