Pergola: post size | rafter size | hole size | ceiling height.
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.
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Pergola post size:- a standard pergola will most often uses 6″x6″ thick posts made of wood/ timber for structural support and very small pergola may use 4×4 inches thick posts as long as it has less than 4 to 6 feet between posts. A standard lengths post shall be of 8 feet, 10 feet and 12 feet.
Pergola post hole size:- the diameter/ size of the pergola post holes should be no less than 10 inches wide, with larger 6″ posts requiring minimum of 12″ wide hole size and as a general rule of thumb the depth of hole you use for your posts should be approximately 1/4 of the height of your post. For example for a 8 foot height of ceiling you will need atleast 12″×24″ size post hole where 12″ is width and 24″ is depth.
Pergola ceiling height:- the standard pagola height is about 8 to 12 feet. 8″ is minimum height recommended for small structures, preferably attached to the house. A lower ceiling feels right-sized for intimate gatherings. 10″ is standard height that suits most situations and allows ceiling fans or lighting accessories for tall people. 12″ is high height a larger roof is more in scale with a larger structure.
Pergola rafter size:- typically the rafters size used for pergola could be 2×6 (2 inches by 6 inches), 2×8 (2 inches by 8 inches), or 1.5×7.25 (1.5 inches by 7.25 inches). The length of the rafters be as long as you desire the pergola itself to be. The longer the rafters, the more you need.
The size of the pergolas rafter is what will give the amount of desired shade, and also weighs the pergola down, making the posts need to be able to hold the weight of the desired rafter size. That being said, the size can vary in length, thickness and even quantity. Even the material can change the sizes of the rafters.
How far can a 2×10, 2×12, 2×8 & 2×6 span for a pergola
How far can a 2×8, 2×6, 2×10, 2×4 & 2×12 pergola Rafter span?
What is good size for a pergola
How much does it cost to build a pergola
Pergola rafter spacing:- spacing of the rafters will vary according to your visual preference and the size of the pergola. Spacing the rafters 16 to 20 inches apart is common.
