Industry-Leading Software
Deck Beam and Footing Calculator
Deck systems rely on properly sized beams, joists, footings, and posts to safely support live and dead loads in outdoor environments. Accurately sizing these components ensures performance under expected loading conditions and prevents costly failures or deflection over time. StruCalc’s suite of tools help contractors, architects and engineers size each deck component to code easily and accurately.
Applications
StruCalc supports detailed structural calculations for decks joists, beams, posts and footings, enabling robust design of both residential and commercial decks.

Deck Footing
Analyze square, rectangular, or circular footings supporting columns or posts.

Deck Beams
Single-span and multi-span beam analysis using the deck beam calculator and deck beam size calculator.
Building Materials Supported

Wood

Steel

LVL & Glulam

Masonry

Concrete
The Importance of Accurate Calculations
Improper deck beam sizing, footing spacing, or joist layout can result in sagging, bounce, or structural compromise. StruCalc’s suite of tools—including a deck beam calculator, deck footing calculator, and deck post spacing calculator—helps engineers size each component to code with precision. Whether you’re working on a residential backyard or a commercial outdoor platform, accurate calculation ensures performance, safety, and approval.
Get Started with StruCalc’s Deck Beam and Footing Calculators
From backyard platforms to rooftop decks, StruCalc simplifies safe structural framing. Whether you need a deck beam span calculator, deck footing calculator, or are configuring joist and post layouts with a deck post spacing calculator, StruCalc gives you the clarity and precision required for every phase of outdoor framing.
Visit StruCalc.com to explore how our integrated deck beam calculator and footing design software help deliver code-compliant results, fast.
Deck Beam and Footing Calculator FAQs
What Deck Framing Elements Can StruCalc Analyze?
StruCalc supports detailed structural calculations for:
- Deck Beams – Single-span and multi-span beam analysis using the deck beam calculator and deck beam size calculator.
- Deck Footings – Isolated footings with axial, uplift, and lateral checks.
- Deck Posts – Evaluate spacing and loading using the deck post spacing calculator.
- Deck Joists – Sizing and spacing with the decking joist spacing calculator.
Each element is linked for continuous load path analysis and dynamic reaction feedback.
What Loads Must Be Considered in Deck Design?
Deck framing systems must be evaluated for:
- Live Loads – Commonly 40 psf or more depending on use (residential, public, rooftop).
- Dead Loads – Self-weight of beams, joists, decking, and railing systems.
- Snow Loads – Based on ASCE 7 provisions by location.
- Uplift and Lateral Loads – Wind exposure and seismic zone effects on unbraced structures.
StruCalc automatically applies load combinations and distributes loads through connected members.
How Does StruCalc Assist with Beam and Joist Sizing?
Using the deck beam calculator and deck beam size calculator, engineers can:
- Evaluate bending moment, shear, and deflection limits.
- Select materials (wood, LVL, steel) and input spacing between posts.
- Determine maximum span based on load conditions.
StruCalc’s decking joist spacing calculator allows for:
Comparison of spacing configurations to minimize bounce and vibration. Wall stud sizing and spacing are crucial to meeting code and performance goals. StruCalc’s stud wall framing software provides:
Adjustment of joist spacing based on span, decking type, and deflection.
What Standards Does StruCalc Follow for Deck Design?
StruCalc calculations align with:
- IBC (International Building Code) – Deck live load and railing requirements.
- NDS (National Design Specification for Wood Construction) – Beam, post, and joist design values.
- ASCE 7 – Wind, snow, and seismic loading provisions.
All calculations support permit-ready outputs and compliance documentation. A shearwall provides lateral resistance against wind and seismic loads. StruCalc’s shearwall calculator supports:
What Standards Does StruCalc Follow for Deck Design?
Deck designs require balancing member size, spacing, and cost. Manual tools often lack dynamic linking or code checks. StruCalc offers:
Permit-Ready Reports – With labeled load paths, code references, and diagrams. Yes. StruCalc supports:
Automated Load Distribution – From joists to beams to posts to footings.
Built-In Span Tables and Material Properties – For wood, engineered lumber, and steel.
Interactive Post and Beam Spacing Tools – Instant recalculations as geometry is adjusted.
Design Faster & Reduce Rework With Powerful New Features
Let StruCalc save you time and help you do more of what you do best.
Intuitive, 3D Interface W/ Automated Member Sizing
- Drag and Drop Feature Design
- Intuitive Parameter Adjustment
- Automated Connector Selection & Member Sizing
- Visually accurate structures
Multi-level, Triaxial Load Linking With 3D Visualizations
- Visually link roof beams to shearwalls to stud walls to footings in seconds.
- Visualize connections between members to ensure loads are properly applied.
Automated Calculation & Application of ASCE Hazard Loads
- Built-in wind, snow & seismic calculators with ability to automatically apply loads to structures.
Pre-Built, Customizable Design Templates
- Build your own custom templates within each design module.
- Create modular configurations for rafters, decks, floor joists, and more! You can even include wood connectors and fasteners.
Ensure your engineering calculations are future-proof
Stay Compliant With The Latest Standards
StruCalc is built to meet the latest engineering and construction standards, ensuring every calculation aligns with current codes and best practices.
- • 2024 IBC
- • ASCE 7-22
- • 2024 NDS (Wood)
- • ACI 318-19 (Concrete)
- • TMS 402/602-16 (Masonry)
- • AISC 360-16 (Steel)


Streamline permit approval
Quick Calculations & Permit Ready Reports
With a customizable report generation tool and easy-to-use calculation modules, StruCalc gets you the answers you need quickly and gives permit reviewers the detail they’re looking for.
Do more in less time
Increase Productivity w/ Templates & Automation
With dozens of built in use cases and the ability to create custom templates for floor joists, roofs, and stud walls, and many other structural members, our intuitive interface and powerful features help you design faster and more accurately. Let StruCalc do the heavy lifting for you!

Tired of Software Bugs and Confusing Inputs?
Get the calculation software you can trust.
Dependable Calculations
For 15 years, our calculation engines have been continuously improved by our structural engineers and proven trustworthy by the thousands of architects and engineers that use them every day.
US Based Engineering Support
We have licensed Professional Engineers and structural design professionals on staff, so when you have a question, just reach out to our US-based engineering team.
Intuitive, Automated Interface
Designed by industry veterans, our 3D visuals, intuitive parameters, and drag and drop feature design enables our users to learn the platform quickly and maximize its functionality.
Pricing & Feature Comparison:
| Top-tier differences: |
StruCalc CORE: $99.97/mo |
Calcs.com: $119/mo |
ENERCALC: $199/mo |
|---|---|---|---|
| Drag & Drop Feature Design | |||
| Multi-Level Load Visualization | |||
| Automated Shearwall Design | |||
| Customizable Design Templates | |||
| Automated Hazard Load Application | |||
| User Themes | |||
| Wood Shearwalls | |||
| Stud Walls | |||
| Bearing Walls | |||
| Retaining Walls | |||
| Hip & Valley Beams | |||
| Collar Ties | |||
| Flitch Beam | |||
| Concrete Beams | |||
| Masonry Beams | |||
| Beam & Joist Spans | |||
| Concrete Columns | |||
| Continuous Footings | |||
| Isolated Footings | |||
| Embedded Posts | |||
| I-Joists | |||
| Glulams | |||
| Solid Sawn | |||
| Steel | |||
| Structural Composite | |||
| 2024 IBC | |||
| 2024 NDS | |||
| 2021 IBC | |||
| 2018 IBC | |||
| 2018 NDS | |||
| 24+ Load Combinations | |||
| Out of Plane Loading | |||
| Multi-span Columns | |||
| Advanced Footing Loads | |||
| Wind, Snow, & Seismic Loads | |||
| Linked Load Tracking | |||
| Beam Analysis | |||
| Wall Analysis | |||
| LRFD | |||
| Live & Dead Loads | |||
| ASD | |||
| Imperial Units | |||
| Masonry Columns | |||
| Concrete Walls | |||
| Masonry Walls | |||
| Wood Hangers | |||
| Curved Glulams |
Packed with Features
Powerful Features & Unbeatable Value
No one else offers as many features as StruCalc. Get more for your money and join thousands of architects and engineers that have chosen StruCalc as their partner for structural calculation software.
Now Offering PDH Courses
Join our community to get great deals on quality PDH courses or get our StruCalc Pro with PDH annual subscription to get 15 PDH hours included with StruCalc Pro.

Purpose-Built Products Tailored To Your Needs
Whether you need simple beam calculations or full vertical and lateral analysis of a custom home, StruCalc has a plan that fits your needs.
StruCalc
Core
Retaining Walls
Shearwalls & Stud Walls
Roof Beams
Floor Joists
Footings & Much More
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