  A model of coupled antiferromagnetic spin-1/2 Heisenberg ladders is studied
with numerical techniques. In the case of ferromagnetic interladder coupling we
find that the dynamic and static structure factor has a peak at $(\pi,\pi/2)$
where the first (second) direction is along (transversal) to the ladders.
Besides, we suggest that the intensity of this peak and the spin-spin
correlation at the maximum distance along the ladder direction remain finite in
the bulk limit for strong enough interladder coupling. We discuss the relevance
of these results for magnetic compounds containing ladders coupled in a trellis
lattice and for the stripe scenario in high-T$_c$ superconducting cuprates.
