how far can a 2×6 span without support

The maximum span of a 2×6 beam without support depends on several factors, including:

1. Load: The weight and type of load being applied to the beam (e.g., dead load, live load, snow load).
2. Grade: The type and quality of the lumber (e.g., #1, #2, or construction grade).
3. Orientation: Whether the beam is installed horizontally (as a joist or beam) or vertically (as a stud).
4. Connection: The type of connection to the supporting structure (e.g., nailed, screwed, or bolted).

Here are some general guidelines for the maximum span of a 2×6 beam without support:

Horizontal Span (Joist or Beam)

• For a #1 grade 2×6 beam, the maximum span is typically:

  • 9-10 feet for a 40 psf (pounds per square foot) live load and 10 psf dead load.
  • 8-9 feet for a 60 psf live load and 10 psf dead load.

• For a #2 grade 2×6 beam, the maximum span is typically:

  • 8-9 feet for a 40 psf live load and 10 psf dead load.
  • 7-8 feet for a 60 psf live load and 10 psf dead load.

Vertical Span (Stud)

• For a #1 grade 2×6 stud, the maximum span is typically:

  • 14-16 feet for a 40 psf live load and 10 psf dead load.
  • 12-14 feet for a 60 psf live load and 10 psf dead load.

• For a #2 grade 2×6 stud, the maximum span is typically:

  • 12-14 feet for a 40 psf live load and 10 psf dead load.
  • 10-12 feet for a 60 psf live load and 10 psf dead load.

Please note that these are general guidelines and may not apply to your specific situation. It’s always best to consult with a structural engineer or a qualified building professional to determine the maximum span of a 2×6 beam without support for your specific project. They can assess the loads, materials, and connections to provide a more accurate and safe design.