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Both calculators run independently — change the inputs on either side to compare results.
Wood Screw Pilot Hole Calculator
Determines the correct pilot hole diameter for wood screws based on screw size, wood hardness, head type, and thread pattern. Use it to prevent splitting and ensure full thread engagement in any wood species.
Pilot Hole Diameter
0.14 inches
About 1/8"-5/32" is typical for #8-#10 screws; the 0.14" example sits here. Drilling deeper than the screw length prevents the tip binding in hardwood.
Pilot diameter scales with screw gauge; woodworking guides recommend pilots roughly 70-90% of the screw's root diameter, from about 5/64" for a #6 to 11/64" for a #14.
Wood Glue Coverage Calculator
Estimate how much wood glue you need and how long to clamp joints based on surface area, glue type, temperature, and humidity. Use it before gluing up panels, frames, or furniture assemblies.
Key differences
| Wood Screw Pilot Hole Calculator | Wood Glue Coverage Calculator | |
|---|---|---|
| Category | Woodworking | Woodworking |
| Inputs required | 4 | 4 |
| Result | Pilot Hole Diameter (inches) | Recommended Clamp Time (hours) |
| What it does | Determines the correct pilot hole diameter for wood screws based on screw size, wood hardness, head type, and thread pattern. Use it to prevent splitting and ensure full thread engagement in any wood species. | Estimate how much wood glue you need and how long to clamp joints based on surface area, glue type, temperature, and humidity. Use it before gluing up panels, frames, or furniture assemblies. |