Deck Post Calculator
Calculate the optimal spacing, sizing, and number of deck posts for your project. Determine proper post placement based on deck size, beam span, load requirements, and local building codes.
Step 1: Deck Specifications
Understanding Deck Post Spacing
Proper post spacing ensures structural integrity and safety. Typical spacing is 6-8 feet for residential decks, depending on beam size and load requirements. Always check local building codes.
Step 2: Post & Load Conditions
About Deck Post Requirements
Taller decks require larger posts or closer spacing. Heavy loads (hot tubs, large gatherings) may require additional posts or larger beam sizes. Always consult local building codes for specific requirements.
Deck Post Calculation Results
Recommended Maximum Post Spacing
Post Type Comparison
| Post Type | Max Height | Max Spacing | Load Capacity |
|---|
Deck Post Layout
Post Calculation Formula
Posts = (Deck Length / Beam Span) × (Deck Width / Post Spacing)
Beam span depends on beam size and wood type. Post spacing depends on post size and deck height. Load type affects both spacing and footing requirements.
Need Professional Deck Design Help?
Connect with our deck construction experts for detailed plans, material selection, and custom deck designs for your outdoor space.
Get Professional Design