Pergola Timber Post Sizes

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.

Pergola timber post sizes. Wind classification of the building site also determines timber length and sizes as does the size of the roof or deck that timber posts and beams need to support. Pergolas can be made from a variety of materials but wood is the most common. Pergola post installation mounted on concrete footer or existing slab. We stock a wide range available for delivery throughout the uk to the trade and public.

Timber queensland limited technical data sheet 19 pergolas and carports revised march 2014 page 2 timber posts table 1 lists the sizes for timber posts. Order the 8 foot or 10 foot post option and add the post attachment hardware to your order. For example a 13 x19 freestanding big kahuna will have 13 rafters and 19 beams with an outside post to post dimension of 10 x 16. Pergola components are stocked by uk timber one of the leading suppliers of wooden pergola and pergola components.

A posts in standard form these come in 100mm x 100mm x 2400mm approx. Once you have decided where your pergola will be situated this will probably dictate the size of the structure. The materials you require will need to be calculated based on the actual size and type of pergola you intend to build. With this lovely corner pergola i made the front diagonal rafter shorter by adding the two side posts making the diagonal about the same measurement as the sides at 8 using 1 5 x 6 timber.

Fix posts d into holes. You may wish to use a product such as postmix to secure them in place. 4ins by 4ins by 7ft 8ins sections. 8ft 8ins to allow for the differences in window door heights particularly in older houses.

Dig 4 holes in the ground at the corners of an 8 foot by 5 foot rectangle. Table 1 timber posts supporting pergola or carport roof max. The force of the wind is a factor in choosing the type of timber to use for your pergola and its dimensions. Softwood is the cheapest and provided you buy pressure treated timber and look after it it will last well.

Materials posts 100 x 100 mm h5 treated radiata pine timber 3 3 m long 4 beams 150 x 50 mm h3 2 treated radiata pine timber 3 m long 4. Often it is a balancing act between the appearance of the pergola and the effects of gravity coupled with the load bearing capacity. Our standard pergola kit sizes are listed as rafter projection x beam width measured from outside tip to outside tip with a 1 6 overhang past the post of each side for freestanding kits. The pergola is 5 foot wide by 8 foot deep so ensure you orient your rectangle correctly.