Expect them to last about as long as treated hardwood sleepers.
Treated pine or hardwood sleepers.
2 625 in x 3 75 in x 8 ft pressure treated landscape timber.
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.
These sleepers do not treat as well and regularly fail in the landscape.
And never use sleepers longer than 2 4m without extra uprights as these extra uprights will prevent the sleepers from bowing.
Hr5 highly water and pest resistant treated pine sleepers are estimated to last for up to 20 years.
If you have to cut the treated pine during the build make sure that you re seal the cut area.
Treated hardwood sleepers are estimated to last between 7 and 10 years.
Their advantages are obvious.
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.
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.
Pine on the other hand from which our softwood sleepers are constructed are less resistant to decay and are henceforth treated with either tanalith green or tanatone brown.
Concrete sleepers which come in fixed 2m lengths are becoming a popular alternative to traditional timber sleepers.
There are different strength levels of treatment usually classified from h1 through to h6 being the most effective and best preserved.