Mounts to the horizontal rail system (sold separately).
SHLF-2 (Steel Standard Carts) 24″(w) x 10″(d) x .75″(h)
SHLF-2W (Steel Wide Carts) 35.5″(w) x 10″(d) x .75″(h)
SHLF-3 (Aluminum Standard Carts) 24″(w) x 10″(d) x .75″(h) (PICTURED)