Retaining Wall Gravel Size

A retaining wall must have the strength to hold back the weight of the soil plants and sometimes small structures behind it.

Retaining wall gravel size.

Typically this gravel ranges in diameter from 2 5 inches 6 35 centimeters to 4 inches 10 16 centimeters. You don t need mortar with a stone retaining wall. The block caps should overhang the retaining blocks by 1 to 1 1 2 inches. Adding proper backfill to your retaining wall is extremely important as this is a key element in helping divert water away from the back of the wall eliminating hydrostatic pressure the leading cause of retaining wall failure.

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. Retaining walls can be constructed using a variety of materials from poured concrete and large timbers to natural stones even bricks. A retaining wall is intended to hold back soil when there is a drastic change in elevation. Backfilling your retaining wall.

Gravel labeled 411 is usually a mixture of 57 and stone dust and is particularly useful for patching potholes and sealing things like retaining walls. Lay a 4 6 inch layer of the crushed base material in the trench. Estimating stone and gravel for a retaining wall. Using construction adhesive secure your block caps and create the top layer of your retaining wall.

Wide and at several lengths and heights. Cover the gravel between your retaining wall and landscape with topsoil or sod so your garden will grow against your wall achieving a natural look. Do choose a material you can easily work with. Gravel known as size 1 is relatively large.

Round rocks such as pea gravel rolls and dislodge under pressure resulting in failure of the retaining wall. Often retaining walls are used to terrace yards that originally had a steep slope additionally retaining walls can help create usable outdoor space as well as control erosion see landscaping a split level home low retaining walls are frequently used as planting beds and can add interest to an. Next compact it and level it using either a hand or mechanical compactor. Rcp recommends using 3 4 crushed gravel.

They weigh 40 to 100 lbs. Simply stack them in rows or mix heights within a row for a random look. For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel. The wall gets its.