2 Words to use with clapboard

Kurt Dorn walked away from the gray old clapboard house, out to the fence, where he leaned on the gate.

Louder and louder, deep, strong, and reverberating, rolling as if for a battle-charge, it came on: it was now but a hundred yards distant,now but fifty,ten,just outside the rough clapboard-wall,but, while I had half risen to open the door, it passed directly through the wall and sounded at my very ears, inside the shanty!

2 Words to use with  clapboard