# How thick should a brick retaining wall be?

## How thick should a brick retaining wall be?

Retaining walls can be tricky to build as they need to be strong enough to resist horizontal soil pressure where there are differing ground levels. One of the things you must get right is the thickness of the wall. It should be at least 215mm thick and bonded or made of two separate brick skins tied together.

How do you calculate the height of a retaining wall?

Calculate the height Look at the grade of the area you’re planning to work on and what the grade will be once you’ve finished. If the finished grade will be four feet lower than the existing grade, your retaining wall will need to be four feet high. If it is a six-foot difference, you will need a six-foot wall.

### How high can a single brick wall be built?

As a general rule of thumb, expect to build a single brick wall up to 7 feet before putting in extra support systems.

How high can a single brick wall be?

Simple Wall A single skin wall is only suitable to a height of around 450mm; anything higher should be double-skinned for stability. Any wall higher than 1.2 metres must be designed by a structural engineer, who will take account of prevailing ground conditions, planned usage etc.

## Do brick walls need footings?

The foundations need to be at least 3 times the width of a half brick wall (i.e. 34 cm/13.5 inch) or at least twice the width of a one brick wall (i.e. 45 cm/18 inch). For piers, the foundations should have a margin on all sides of at least half a brick (i.e. 11 cm/4.5 inch).

Does a brick retaining wall need a footing?

One important part of a well-constructed and enduring brick retaining wall is an adequate, supportive footing, or foundation. Bear in mind that most municipalities require that retaining walls of more than 3 or 4 feet be professionally engineered.

### Can a brick wall be a retaining wall?

A retaining wall made entirely out of brick is known as a “cavity wall”. This design is composed of two standard brick walls just inches apart that share the same foundation. Between them is a gap for steel that runs up from the foundation to the top of the wall.

How are brick walls constructed?

Solid brick walls are comprised of two or more layers of brick. Metal ties or header bricks laid perpendicular to the wall are used to secure the layers to one another. The strength of a solid wall depends on its thickness and the durability of the brick and mortar used to construct the wall.

## How high can a gravity retaining wall be?

Gravity retaining wall: It is not used for heights of more than 3.0 m. In it, the resistance to the earth’s pressure is generated by the weight of the structure.

What is the slope of retaining wall?

Design and build your retaining wall to slope at a minimum rate of one inch for every one-foot of rise (height). Fortunately, working with retaining wall blocks makes it incredibly easy to achieve this “step-back” construction!