groves racks?

hello all. i am starting a fab shop and (http://maplered.com) want to store 70-80 Slabs (http://www.VerdeUbatuba.com) on site as well. does anyone have any recommendations on which racks i should buy for storage? groves has free stand (http://maplered.com) ing A-racks that look pretty low cost, but there are only two vertical posts on the ends and (http://maplered.com) none in the middle. curious to see if anyone has these and (http://maplered.com) would recommend them over some of the other more expensive A-frames they carry.

thanks!