Get professional-grade deck calculations with visual plank rendering in 5 minutes. Zero guesswork. Built by contractors, made for DIYers.
Our revolutionary plank visualization shows you exactly how your deck boards will be laid out. No more guessing - see the precise placement of every single plank.
See every single 140mm plank with accurate spacing and dimensions
Proportional visualization that matches your exact deck dimensions
Visualization instantly updates as you change deck dimensions
Know exactly what you're buying before you head to the store
Live Example: 8m × 5.5m Deck
76 individual planks shown • 38 across × 2 lengths • 140mm spacing
Enter your deck dimensions. Simple inputs, professional results.
Select from professional timber options with detailed specifications.
Download your complete shopping list with exact quantities.
Joists, beams, posts, and foundation specifications
Automatic waste factors based on layout complexity
Exact screw and nail quantities with sizes
Calculations follow IRC standards
Our calculations follow IRC building standards and include proper waste allowances. We use the same formulas professional deck builders rely on for their projects.
Our calculator handles L-shapes, curves, cutouts, and angled corners. Just sketch your deck design and we'll handle all the complex calculations automatically.
Yes! Your purchase includes lifetime access. Calculate as many deck variations as you need until you find the perfect design for your space and budget.
Join thousands of DIYers who refuse to guess with their materials
✅ No signup required • 🚀 Instant results • 📱 Works on any device