These types of joists are engineered and their structural performance relies upon their integrity not being compromised. Approved Document A no longer provides guidance on the drilling of solid timber ...

Drill holes with a diameter of no more than one-third the depth of the joist, staying 2 in. away from the top and bottom.

The Level.Up Adjustable Deck Pedestals attach to wood joists to build plank decks ... Manufactured from heavy-duty engineered polymer, Level.Up Adjustable Pedestals, components and accessories ...