Canaries, Diamond Firetail and Java Sparrow foraging on cage floor

My colourful canaries and their finch friends all foraging for seeds and chop I put on the floor for them to find. I love seeing them hopping and pecking for seeds.
Large cages always seem to be set up so there is a wire grid for a floor. A bit of head scratching and wire bending here and there is sometimes required to adjust them but I will not have my birds on wire floors. It does mean they need cleaning more often, so I get why the cages come like that but personally I don't like it.