Pergola / August 24, 2018 / JulietteHughes
The pergola has evolved from its famous brick and stone posts of 19th and 20th century to modern wood designs of the 21st century. The idea of modern wood design of pergolas is its affordability and increasing popularity in modern garden designs. But because brick and stone are weather resistant hardwoods such as Western Redcedar and Coast Redwood are used instead to match with the pergolas made of brick and stone. As the normal use of a pergola is being an arbor for vines some architects introduced pergolas as a structure made as a protection from rain or direct sunlight.
So while buying wooden pergolas ask their manufacturers if they are partially notched or fully notched. Buyers should be aware that notching creates interlocking joints and this fortifies the structure. Also notching insures that all your timbers stay straight and true over the decades because they cannot move. Most manufacturers skimp on notching partially or completely to reduce their construction costs and will tell you that hardware will take care of the issue. It does not. If just one of your Pergolas timbers has hidden stresses in it (quite common) as it weathers over the years it will turn twist or sag.
Look for pergola manufacturers that have been in the business for at least five years. The advantage of choosing such a manufacturer is that they can be more reliable in terms of fulfilling their product warranty or helping you with replacement parts at any time. Avoid Sizing Errors: Since most Pergola buyers are one time buyers many sizing errors are common. For example a common mistake is to assume the positioning of the 4 corner posts is the size of the pergola being offered. For instance if the four corner posts of a pergola are expected to sit on the corner of your brand new concrete pad that is 10 x 12 and purchase a 10 x 12 pergola you will discover on receiving your pergola kit that the posts are set at 8 x 10 to the outside corners.