1. What is Deck Beam Span Calculation?

Deck beam span calculation determines the maximum allowable distance between supports for deck beams based on beam size and expected load. This is crucial for structural integrity and safety of deck construction in Alberta.

2. How Does the Calculator Work?

The calculator uses Alberta building code tables to determine maximum beam span:

Where:

• Beam Size — Dimension of the beam in inches
• Load — Expected load in pounds per square foot (psf)

Explanation: The calculation references standardized tables from Alberta building codes that account for wood species, grade, and safety factors.

3. Importance of Proper Beam Sizing

Details: Correct beam sizing and span calculation is essential for deck safety, preventing structural failure, and ensuring compliance with Alberta building codes.

4. Using the Calculator

Tips: Enter beam size in inches and expected load in psf. Consult Alberta building codes for specific requirements and always have designs approved by a structural engineer.

5. Frequently Asked Questions (FAQ)

Q1: What load values should I use for a typical deck?
A: Residential decks typically use 40-60 psf, but consult Alberta building codes for specific requirements based on intended use.

Q2: Are there different requirements for different wood types?
A: Yes, span tables account for wood species and grade. Douglas fir and southern pine have different span capabilities.

Q3: How does snow load affect beam span calculations?
A: Snow load is a significant factor in Alberta. The total load must include expected snow accumulation based on your region.

Q4: Should I add a safety factor to these calculations?
A: Building codes already include safety factors. However, for unusual conditions or heavy use, additional margin may be prudent.

Q5: Is professional approval required for deck construction?
A: In most Alberta municipalities, deck construction requires building permits and professional approval for structural elements.