Deck Calculator & Planner

Planning a deck? Type the width, depth and height. Deck Calculator & Planner draws the deck to scale and lists everything you need: joists, beams, posts, footings, concrete, decking, screws, railing and stairs. Free to plan. One purchase unlocks PDF export, the cut list and cost totals. No subscription. No account. What the app gives you: - A scaled plan you can see and adjust as you change the size, attached or freestanding - A full material list, grouped by framing, footings and concrete, decking and hardware, with your own prices and a running total - Stairs worked out for you: rise, run, tread count and stringers - A joist and beam check against published span tables, with a flag when a choice is outside the table - Railing counted out: posts and balusters, spaced to keep gaps under 4 inches - A PDF you can print or send, with a cut list page for the lumber yard Deck Planner helps you plan and estimate. It is not engineering advice and it does not replace your building department, a licensed engineer or a contractor. Span and footing checks come from published prescriptive tables for typical conditions. Your town may use a different code edition, snow load, frost depth or soil value. Most decks need a permit. Check with your local permit office before you buy materials or build.