## How far can a wooden beam span?

When supporting joists that span 12 feet with no overhang beyond the beam, a double ply beam can span in feet a value equal to its depth in inches. A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on.

### How far can a 4X8 beam span without support?

Dimensional Lumber Deck Beam Span Chart

Joist Spans | ||
---|---|---|

Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Red Pine | 4X8 | 7′-0″ |

4X10 | 8′-4″ | |

4X12 | 9′-8″ | |

3-2X6 | 6′-5″ |

**What size wood beam do I need to span 30 feet?**

What size lvl beam for a 30 foot span:- as per general thumb rule, for a 30 foot span, size of LVL beam or GLULAM should be 16-18 inches deep and 4 inches wide, thus you need something like a 16-18″ GLULAM or LVL to span upto 30 feet used for residential building or projects.

**What size beam do I need to span 5m?**

Steel beam or rsj size for 5m span:- as per general thumb rule, for 5m span size of steel beam or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel section (rsj) should be ISMB 250 or UB 250×125 used for residential building or projects or construction in which depth of section of beam is …

## What are the different sizes of beam span tables?

There are several beam span tables for all the species of wood. This table is simply a sample and may not be valid for your region. This span table excerpt shows two possible sizes of built-up floor beams (2 X 10 and 2 X 12). The full table shows more lumber sizes.

### How do I use beam span calculator?

Beam Span Calculator 1 Select the number of floors supported by the beam 2 Use Buttons Below to Select Supported Length of floor joists in feet (or metres in brackets) for the beam More

**How many span tables are in a 2×4?**

Simplified maximum span tables for selected visual and mechanical grades of Southern Pine lumber in sizes 2×4 thru 2×12. Listed are 46 tables based on common loading conditions for floor joists, ceiling joists and rafters. Simplified span tables for Southern Pine lumber and glued laminated timber (glulam) headers, beams and girders.

**What is the widest floor beam span for supported joists?**

In the table above, the widest floor beam span for 12′ of supported floor joists is 14’7″ (if using a 5-ply 2 X 12). What if we needed to span more than that?