Clinton 2008 Thingbooth a-frame1 | by Vikingmaid "Based on the idea of a thingbooth, raising a rock or turf wall on which to set-up the A-frame. There are still places in Iceland where you can see the remains of these walls. It gives ACRES more space to walk around inside and to set up a proper bed. We used pine plank and pegged it to the bottom of the A-frame. We also added teh small cross piece near the apex of the A-frame to give it more stability."