How to Use the Nail & Bolt Calculator
Whether you're nailing sheathing panels, laying deck boards, or bolting steel connections, knowing your fastener count upfront prevents mid-project supply runs and helps you compare bulk pricing tiers. This calculator assumes uniform grid-pattern spacing — the most common scenario for sheathing and slab-bolting.
Select your work type to auto-fill the typical spacing, then adjust the spacing and waste factor as needed. The waste factor accounts for bent nails, dropped fasteners, and misdriven hardware that must be replaced.
Typical Fastener Spacings
- Deck face-nailing: 12 in (300 mm) o.c.
- Wall sheathing field: 6–8 in (150–200 mm) o.c.
- Wall sheathing edge: 3–4 in (75–100 mm) o.c.
- Steel bolt patterns: 4 in (100 mm) typical
Frequently Asked Questions
Common 16d sinker nails come in 50-lb boxes containing roughly 160–180 nails. 8d commons run about 300 per pound. Check your box label — nail count varies significantly by length and gauge.
Joist hanger nails are specified by the hanger manufacturer (e.g., 10d × 1.5 in or 16d × 3.25 in per hole). Count the holes per hanger, multiply by hangers, and add 10% waste — this calculator can handle that scenario too.