My raised beds Rolls Royce style made as :-
Class B engineering brick built beds on 300 mm x 300 foundatiomns of concrete three feet high on the path side two feet three on the grass side . Each bed has a functioning free soil drain in the middleof just over 1 foot square , the walls have weep holes incase of down pours . The cross walls are fully keyed into the outer walls from top to bottom for strength .
It serves two purposes, I can reach the middle three foot width from either side but prefter the three foot hight to do the gardening from the paths ( bust up back etc) .They are the retaining wall for the lawn to be level as we had a 28 inch fall of land over the 40 feeet width of the plot ( most of it in the area of the beds , it also sloped back some four feet from the road.
There are 12 beds giving appros 120 sq feet of cropping space .
At the front of the bungalow there are 8 beds also giving almost 120 sq ft of flower beds .
These beds should see me turn my toes up and some .