Retaining Wall Drainage Stone

Use crushed stone behind the wall loose gravel and stones don t hold water like soil does.

Retaining wall drainage stone. Any reinforced wall or walls over 4 ft. Retaining wall drainage technology has improved over the years. Soil holds water so the dirt will expand and contract during winter thus pushing on the wall and eventually toppling it over. Plan for good drainage proper width height ratio and distance between tiers.

For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel. Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks. Another advantage of dry stacked stone walls is that you can create planting pockets for small rock garden plants such as sedums. 1 2 m in height or with slopes or other surcharges above the wall will need a toe drain.

In all cases wall rock is located within the cores of the block and a minimum of 12 in. A dry stacked stone wall looks so natural. Depending on its purpose a retaining wall can be very short or very tall. With proper retaining wall drainage and construction it can bring a lot of character and function to your landscaping.

This is so that when water gets into the space it does not become bogged down in soil but instead can flow down the wall to the drains or weep holes. It is important to consider retaining wall drainage in the process of building your wall. Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size. To build a natural dry stone retaining wall prepare the site.

These days many people choose to build their retaining walls with a layer of sand packed up against the stones to create a buffer. Regardless of the reason why a retaining wall is used it is typically constructed of a material such as brick concrete stone or wood timbers. Similar to gravel paver base is a form of construction aggregate that contains crushed rocks such as limestone. For diy purposes opt for manufactured blocks that are.

Poor drainage is often the cause of retaining walls failing and then it is often too late to put right. Due to soil erosion your retaining wall should be built on a solid foundation made from paver base. Lay high quality stones and use a geotextile backing to ensure the wall lasts a long time. It can be vital in ensuring that the wall remains upright and that too much wet earth doesn t cause it to buckle or even collapse.

300 mm behind the block. Fill the trench with a 2 to 3 inch layer of paver base.