Terracing with L-stones, overlapping of the steps

Hello dear forum members,

we need to bridge a height difference of about 1.80 - 2.00m from the terrace to the garden. We will measure the exact height in the next few days.

Planned are two steps with L-bricks. From the house 4 m terrace, then 1.00 m planting strip, then the first step L-bricks. Then again 1.00 m planting strip and the second step L-bricks, then we want to have reached the garden level.

An attempt of a sketch (cross-section)


Our questions about this:

How much must the upper row of L-bricks disappear below the upper soil level of the lower row in the ground? Is it enough if the foundation of the upper row is below the soil level?
Do you have any tips on where to read up on this?

If possible and after we have looked at all the facts, we want to maybe do it ourselves, with the active support of a friend with a sufficiently dimensioned crane vehicle.

Many thanks

Uhh and how do you want to walk through the garden then? Is there still a staircase? Calculated how steep it would be then … ?

There will also be a staircase, which should go from the side of the terrace into the garden, so it can already start at the planting strip at the top and will probably also extend into the garden. However, we have not calculated this exactly yet. We are only starting with the feasibility study; for this, we need information, and maybe a hint on where to find and look it up. Maybe naive?

With the classic concrete block steps, which are 35 cm deep and 15 cm high, the staircase length would then be 4.2 m or even 4.9 m depending on the actual height. Oops, that's official.

I have read a lot on the topic of horticulture. Setting L-bricks in a cascade was not mentioned. A total height of 2m is also a significant figure, and with that you are moving into the area where static calculations for support are strongly recommended. You might find something about this in the manufacturers' documents, or they may kindly provide you with information. With the planned scheme, you have the equivalent of a 45-degree slope. Accordingly, the staircase will either be quite steep or will not fit the terracing at all. Sensibly, one would not plan the staircase in the fall line here, but rather along the support or at an angle.

Would you still like to show us the site plan for it? Including the indication of the corresponding elevations.

What does the development plan say about terrain modeling?

Without knowing the geology, no statement can be made.