Treated hardwood sleepers are estimated to last between 7 and 10 years.
Treated pine or hardwood sleepers.
Avoid treated pine sleepers if they are to be in contact with the ground.
Item 507412 model lstgrn8be.
These sleepers do not treat as well and regularly fail in the landscape.
Expect them to last about as long as treated hardwood sleepers.
Concrete sleepers which come in fixed 2m lengths are becoming a popular alternative to traditional timber sleepers.
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.
Treated pine logs have a shorter estimated lifespan than treated pine sleepers.
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.
And never use sleepers longer than 2 4m without extra uprights as these extra uprights will prevent the sleepers from bowing.
If you want to use pine wood for retaining walls use logs or wing splits as the sapwood is on the outside.
There are different strength levels of treatment usually classified from h1 through to h6 being the most effective and best preserved.
If you want to use sleepers use class 1 hardwood sleepers.
Hr5 highly water and pest resistant treated pine sleepers are estimated to last for up to 20 years.
Increased strength and durability and a much better ability to withstand the elements.