Devon & Devon Claridge Assembly Instructions Manual page 21

9)
With the same procedure, fit the side panels. Note that only one
end of the side panels has the U-shaped cuts. The other end has
two holes for fastening to the wall.
Lean the structure you have just assembled against the wall. Using
a level, check that the structure is parallel and perpendicular to the
wall.
Also check correct alignment of
the legs, measuring for example
their distance from the wall.
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