hoard·ing 
(hôrdĭng)
(hôrdĭng)n.
1. A temporary wooden fence around a building or structure under construction or repair.
2. often hoardings An overhanging wooden structure temporarily mounted atop the walls of a fortification to aid in repelling attackers.
3. Chiefly British A billboard.
[Obsolete hoard, hourd, from French dialectal hourd, fence, scaffold, hurdle, from Old French, of Germanic origin.]