how to strengthen kitchen corner cabinet

[Gary111]

Hi, Im going to butt join a worktop where it meets over a corner cabinet , the trouble is the cabinet top isnt very strong or supportive.
Theres no carousel or anything in it.

I was wondering if I should try to strengthen it somehow, maybe by adding some kind of post ?

 

[sircerebus666]

Are these home made kitchen cabinets , flat pack, prebuikt?

Pics?

 

[Gary111]

they are flat pack magnet ones.
sorry got no pics now as Ive left the property.

 

[big-all]

providing the worktops are tied together correctly along the joint and both front and back edges off both worktops are supported youll be fine but plan any joints as far away from water or damp as possible and avoid cut outs near the joints