Steel grid for a wash bay

[Jack Russell]

Morning,

Has anyone welded a frame/grid to go down on a wash bay over a settling pit? Can’t decide if I need 50 50 box or what’s best to make it from?

Thanks

 

[Lincs Lass]

Rail line sections laid on an rsj ring beem with a couple of cross members for support ,,you could lift them out easier to clean out the sump

 

[Hilly]

100x50 thick wall as well , I’d galvanise it as well .

 

[grainboy]

Have two available, both ex drive over grain pit grids,
Pictures of other one tomorrow