Pergola beam size for 10′, 12′, 14′, 15′, 16′, 18′ & 20 feet span | Pergola beam size for 12 foot span | Pergola beam size for 14 foot span | Pergola beam size for 16 foot span | Pergola beam size for 18 foot span | Pergola beam size for 20 foot span | how far can you span a 2×6 for a pergola.

A pergola is constructed to outside of main building as an outdoor garden feature that helps in forming a shaded passageway, walkway or sitting area of vertical posts or pillars or column that usually support cross-beams and a sturdy open lattice, often upon which woody vines are trained.

Pergola may be an extension of a building or serve as protection for an open terrace or a link between pavilions. A pergola is a much larger and more open structure. Normally, a pergola does not include integral seating.

They are different from green tunnels, with a green tunnel being a type of road under a canopy of trees. Pergolas are sometimes confused with “arbors,” as the terms are used interchangeably. Generally, an “arbor” is regarded as wooden bench seats with a roof, usually enclosed by lattice panels forming a framework for climbing plants.

Pergola consist of rafters, beams, and posts and can be attached or detached to a house. In this article you know about Pergola beam size for 10′, 12′, 14′, 15′, 16′, 18′ & 20 feet span and also know about how far can you span a 2×4, 2×6, 2×8, 2×10, 2×12 for a pergola.

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Many people ask questions about the pergola beam span. It’s a real frustration when planning an open structure. There seems to be no definitive beam spans for pergolas, it depends on the many factors such as species and grade of wood and spacing, plus local codes and snow loads.

**Pergola beam size for 10′, 12′, 14′, 15′, 16′, 18′ & 20 feet span**

**Pergola beam size for 10′ span**:- As per thumb rule and general guidelines, it is recommended that for a 10′ (10 feet) span you will need at least 2″x6″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 10 foot span, 2×6 size of timber used for pergola beam. Although it depends on the species and grade of wood and spacing, plus local codes and snow loads.

**Pergola beam size for 12′ span**:- As per thumb rule and general guidelines, it is recommended that for a 12′ (12 feet) span you will need at least 2″x8″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 12 foot span, 2×8 size of timber used for pergola beam.

**Pergola beam size for 13′ span**:- As per thumb rule and general guidelines, it is recommended that for a 13′ (13 feet) span you will need at least 2″x8″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 13 foot span, 2×8 size of timber used for pergola beam.

**Pergola beam size for 14′ span**:- As per thumb rule and general guidelines, it is recommended that for a 14′ (14 feet) span you will need at least 2″x10″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 14 foot span, 2×10 size of timber used for pergola beam.

**Pergola beam size for 16′ span:**– as per thumb rule and general guidelines, it is recommended that for a 16′ (16 feet) span you will need at least 2″x10″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 16 foot span, 2×10 size of timber used for pergola beam.

**Pergola beam size for 15′ span:-** As per thumb rule and general guidelines, it is recommended that for a 15′ (15 feet) span you will need at least 2″x10″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 15 foot span, 2×10 size of timber used for pergola beam.

**Pergola beam size for 18′ span:-** As per thumb rule and general guidelines, it is recommended that for a 18′ (18 feet) span you will need at least 2″x12″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 18 foot span, 2×12 size of timber used for pergola beam.

**Pergola beam size for 20′ span**:- As per thumb rule and general guidelines, it is recommended that for a 20′ (20 feet) span you will need at least 2″x12″ size of wood beam used for pergola made of treated or hardwood timber or more. Thus, for a 20 foot span, 2×12 size of timber used for pergola beam.

**How far can you span a 2×4 for a pergola**:- as per thumb rule and general guidelines, for a pergola, 2″×4″ size timber you can span it upto 6 feet in length. Although it depends on the species and grade of wood.

**How far can you span a 2×6 for a pergola**:- as per thumb rule and general guidelines, for a pergola, 2″×6″ size timber you can span it upto 8 to 10 feet in length. Although it depends on the species and grade of wood.

**How far can you span a 2×8 for a pergola**:- as per thumb rule and general guidelines, for a pergola, 2″×8″ size timber you can span it upto 12 feet in length. Although it depends on the species and grade of wood.

**How far can you span a 2×10 for a pergola**:- as per thumb rule and general guidelines, for a pergola, 2″×10″ size timber you can span it upto 16 feet in length. Although it depends on the species and grade of wood.

**How far can you span a 2×12 for a pergola**:- as per thumb rule and general guidelines, for a pergola, 2″×12″ size timber you can span it upto 20 feet in length. Although it depends on the species and grade of wood.

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**Conclusion**:-

As per thumb rule, for a pergola beam, 2″×12″ size timber you can span it upto 20 feet, 2×10 can span upto 16 feet, 2×8 can span upto 12 feet, 2×6 can span upto 10 feet and 2×4 can span upto 6 feet.

**Conclusion**:-

As per thumb rule and general guidelines, it is recommended that for a 10′ span you will need at least 2″x6″ size of wood beam used for pergola, for a 12 foot span – 2×8 size timber, for a 14, 15 &16 foot span – 2×10 size timber and for 18 to 20 foot span you will need 2×12 size timber.