Pergola / August 28, 2018 / JulietteHughes
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.
This does not mean that any type of pergola would be effective. Instead you will have to be careful of what kind of pergola designs you approve of for your garden. Consider the following. 1. What is the exact location of the pergola as per the pergola designs? One of the very common designing flaws with regard to pergolas is that people do not pay attention to the location of various utilities in their gardens. Ideally your pergola should not be built upon any kind of utility related equipment. In fact your pergola should not even be built upon underground piping let alone over ground equipment.
The reason is pergolas are always sized based on their roof size. And in most cases pergolas are recessed back from the roof edge anywhere from 8 inches to a couple of feet depending on the design (commonly 12"). Custom design or sizing can be a good idea to get a suitable pergola for your place. Look for manufacturers that insist on shop drawings prior to building and take the time to check everything repeatedly and make sure that all measurement and details are agreed to in writing ahead of delivery time. Assembly required/Assembly Instructions: Make sure you have collected assembly instructions from the manufacturers.