Bumper Rule Question

[Hallry]

[R33]
Bumpers must be supported by the structure/frame of the Robot (i.e. each end of the Bumper must be rigidly attached to the Frame Perimeter, the gap between the backing material and the frame must not be greater than ¼ in. and no section of Bumper greater than 8 in. may be unsupported). See Figure 4‑7.

(emphasis mine)

Wouldn't that be impossible though, at least for two of the bumpers? Doesn't the wood have to overlap the wood of the perpendicular bumper? How would the end be rigidly attached to the Frame Perimeter then? Or is 'end' a relative term, and just means 'as close to the end as possible'? I have an example picture below:



Thanks in advance.