Hr5 highly water and pest resistant treated pine sleepers are estimated to last for up to 20 years.
Treated pine or hardwood sleepers.
Treated hardwood sleepers are estimated to last between 7 and 10 years.
Increased strength and durability and a much better ability to withstand the elements.
If you want to use pine wood for retaining walls use logs or wing splits as the sapwood is on the outside.
If you want to use sleepers use class 1 hardwood sleepers.
These sleepers do not treat as well and regularly fail in the landscape.
Treated pine logs have a shorter estimated lifespan than treated pine sleepers.
There are different strength levels of treatment usually classified from h1 through to h6 being the most effective and best preserved.
Concrete sleepers which come in fixed 2m lengths are becoming a popular alternative to traditional timber sleepers.
Avoid treated pine sleepers if they are to be in contact with the ground.
If you have to cut the treated pine during the build make sure that you re seal the cut area.
2 625 in x 3 75 in x 8 ft pressure treated landscape timber.
Both have similar properties and one can expect 15 to 20 years of use.
Item 507412 model lstgrn8be.
And never use sleepers longer than 2 4m without extra uprights as these extra uprights will prevent the sleepers from bowing.
Hardwoods have a natural protection against pest and fungal breakdown because they are hard and softwoods like pine are easy targets for pests because they are easier to eat.