Pocket Hole Calculator
Screw length and thread type by material thickness
Recommended Screw Length
1 1/4″
Thread Type
Coarse
How to use this pocket hole calculator
Pick your material thickness and whether you’re joining softwood, plywood, or MDF (coarse thread, better grip in soft or engineered material) versus hardwood (fine thread, less prone to splitting dense material).
Drill guide / depth-collar settings vary slightly between jig
brands and models. Set your jig’s collar to match your material
thickness per your specific jig’s manual — this tool covers screw
selection, not jig-specific depth settings.
Reference table
| Material Thickness | Screw Length |
|---|---|
| 1/2″ | 3/4″ |
| 5/8″ | 1″ |
| 3/4″ | 1 1/4″ |
| 1″ | 1 1/2″ |
| 1 1/4″ | 2″ |
| 1 1/2″ | 2 1/2″ |