Patio to Size / Retaining walls
30 ft long, 2 ft high retaining wall
A garden or terrace wall 30 x 2 ft in 4 in block, with a buried course, a gravel base and drainage behind it.
What is on your plan
Yard ticket
30 x 2 ft
- blocksby course, with the half blocks
- buried coursehow deep it goes
- capsand adhesive
- trenchwidth and depth
- base graveltons
- drainage graveltons
- drain pipeand fabric
- setbackhow far the top leans in
Plus the wall face with every course and the cross-section through base, drainage and cap, and the steps in order.
Checked before it is drawn
- Courses reach the height, with a buried course of at least a tenth of it
- Every course long enough, half blocks counted on the offset courses
- A drain behind every wall 2 ft or taller
- No wall over 3 ft: taller walls need an engineered design
Before you dig
Call 811 a few days ahead and the utilities come out and mark their lines for free. Check your town for permit rules on walls and for setbacks from the property line. Walls that hold back a driveway, a slope above them or more than 3 ft of soil need an engineer.
The rental shelf
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This project
Titan 32 oz non-marking rubber mallet Seats each paver and the wall blocks without chipping them. Check the current price -
This project
Drain sleeve for 4 in pipe, 100 ft Wraps the perforated drain behind the wall so it does not silt up. Check the current price -
This project
Driveway geotextile fabric, 13 x 115 ft Under the base on soft or clay soil, so the gravel does not sink into it. Check the current price -
Every project
Walensee 10 x 10 in steel hand tamper For the edges and corners a plate compactor will not reach. Check the current price -
Every project
LURKA mason line with line levels String lines for square corners and the fall away from the house. Check the current price -
Every project
DEWALT 7 in diamond blade for block and brick Fits a circular saw for the cuts along the edges; cut wet or outside with a mask. Check the current price
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