Decking Screw & Hidden Fastener Calculator – Easily Estimate Your Needs

Planning a decking project?

Whether you're using traditional screws or hidden fasteners, accurately estimating the quantity you need is crucial for a seamless installation.

Our Deck Screw Calculator and Hidden Fastener Calculator help you determine the exact number of fasteners required based on your deck size, plank dimensions, joist spacing, and gap preferences.

Deck Screw Calculator – Get the Right Amount of Screws

For a secure and long-lasting deck, it's essential to use the right number of screws. Our deck screw calculator factors in:
✅ Plank length & width
✅ Joist spacing (30cm to 60cm)
✅ Gap between planks (adjustable from 3mm to 12mm)
✅ 2 screws at each plank end & 1 screw per joist intersection

With just a few inputs, you'll get an accurate screw estimate, ensuring you purchase the right amount without waste.

Hidden Fastener Calculator – A Clean, Screw-Free Finish

For a modern decking with no visible screws, our hidden fastener calculator is perfect. It calculates the number of fasteners needed based on:
✅ Deck area & plank dimensions
✅ Joist spacing (30cm to 60cm)
✅ Gap between planks (3mm to 6mm - has no incidence on final quantity)
✅ Shared fasteners between adjacent planks

This ensures a precise estimate, helping you avoid excess material costs while achieving a flawless deck surface.