16ftcircuforce,161/2Diameter,8 1/2feet High,take apart dome,4 large triangles,30 Isosceles,one large side[=2 equal sides+10ea=equilateral=all 3sides equal,five of the isosceles triangles are permanently fastened to form one Pentagon,there are six pentagons,five for walls,one used for roof,ten equilateral are used to fill holes between pentagons.uses hunting shack,produce sales,fishing,sauna,fits in back of pickup,one hour to put up=this project is one half complete=,I stop=hip problems,1/2 complete,16ft diameter,8 1/2 high,needs more work,knee operation,can't finish,great EARTH QUAKE SHELTER,A GREAT FAMILY PROJECT$800,LET YOUR KIDS LEAR ABOUT MAKING WOOD PROJECTS, INSTEAD.OF THE PHONE.YOU BE REWARDED.