Pergola Post Size Calculator

The pergola calculator helps to get an approx estimation of how much you pergola can cost.

Pergola post size calculator. To calculate your rafter length for an attached pergola it is measurement a 1 6. What size beam do i need to span the 14 posts. Due to the size of the existing concrete patio the 6x6 posts will be 14 apart on the long sides and 8 on the other sides. Take note of this measurement as this will be the first number in the size pergola you choose.

You also have to consider allowable span based on the size of the pergola you re building. Order the 8 foot or 10 foot post option and add the post attachment hardware to your order. Span tables for 8 x12 x24 western red cedar this pergola. For a substantially larger pergola notch the top of the pergola posts and sit the supporting beam on the notch for extra support.

Burying post in the ground will shorten the life of the pergola. Sizing arbor and pergola framing by glenn mathewson q in bobby parks recent article about the design and construction of arbors tips for building arbors may june 2013 his guidelines for sizing beams and rafters seem to be based mostly on aesthetics. Then add the overhang to that measurement. Even though most pergolas don t have anything going on top of the rafters most building codes require them to have the same spacing as structures that support floors or roofs.

The smaller pergolas given as examples in the free plans are made by bolting the main rafters beams onto the posts. Then apply simpson strongtie post bases either prior to the concrete setting or after it sets depending on which base you choose. The key to designing a pergola is its visual proportion. Pergola beam span calculator post 4240224277 pergolaoverdeck.

Pergola post installation mounted on concrete footer or existing slab. Two beams can be used for extra support one on each side of the post. You should instead dig 12 footings to the frost line in your case probably a foot or so and pour footings in sonotubes. Pergola beam span 18.

Beam size for long span on pergola decks fencing contractor talk. As soon as you are done with choosing the area that the pergola would cover roofing material and wood quality take help of this calculator to estimate the budget you can involve. With 2 6 posts the girders and cross members will need to be larger otherwise the top of the structure will look undersized and anemic. The attached big kahuna has a 1 6 overhang past the outside edge of the post.

The key thing to remember when it comes to determining pergola rafter spacing is that you cannot go more than 16 inches from center to center between rafters. The easiest method of installation is to dig footings to the correct depth below the frost line in your area and use post mounting hardware to attach the posts to the concrete footings or existing concrete slab as follows.