Is this a common practice? let’s say i have a simple 16×24 shed, and i want the walls to be 12 feet high, but i only have 8 foot boards. can i frame my 8 foot walls, then frame another wall that is 4 feet to rest directly on top of that wall with no floor in between? is there anything structurally wrong with that? example pictures/sketches would be nice
and while I’m here, is it necessary to sheath the wall when i’m going to put wooden clapboard on anyway? can the clapboard be attached directly to the studs, to brace and square it, or should i also sheath it?
thanks!