Depending on the class durabilty hardwood can be used for the different parts of the fence but most common is fence posts only.
Treated pine vs hardwood fence.
Treated pine in ground here canberra looks good even when 30 years old.
They both last the same in the weather.
Ptp is prone to shrinking warping and cracking which is made worse by the sun.
Pressure treated pine ptp is the most popular residential fence choice in outdoor structures decks porches and all types of residential fences for example.
Hardwood is stronger so it will take knocks better.
So hardwood will look better.
Paling fences consist of treated pine palings rails and plinth.
Local hardwood yellowbox or similar in ground starts to rot out in under 5 years.
In order to prevent decay weathering and termites pressure treated pine is chemically treated.
I built a gazebo last year used treated pine for everything except the rafters and painted the whole thing floor was terracotta red to match the garden pavers all else white blue mini orb colorbond roof the blue and white was to match the house.
Zoe i agree that stained hardwood looks better than stained tp but what about painting the deck.
You can find treated lumber plywood lap siding and even specialty items like lattice and pre cut stair parts.
The sun makes any outdoor damage.
Now research shows that h4 or h5 treated pine in logs will outlast untreated and treated hardwood of all classes except class 1 treated hardwood when used in the ground but h4 and h5 treated pine with more than 20 truewood especially if the truewood is on the outside will last far less than hardwood.
However ptp can warp shrink and crack.
Reputable manufacturers offer warranties of 15 to 30 years against rot decay and insect attack.
The main difference is that treated pine will warp bow and twist worse then hardood.
Pressure treated pine fences.
For this reason we recommend using pressure treated pine for the posts and cedar for the rest of the fence.
Posts are usually mixed hardwood cypress pine or treated pine.
All fixings used must be galvanised.
Pressure treated pine is one of the most popular choices in residential outdoor structures which includes fences porches and decks.