#C (219)

Thanks to everyone for the golfing tips -- managed to get it down to 219.  Don't think it'll go much lower.

<!-- language: lang-cplusplus -->

    w,W,s,S,i,r;main(){char T[78];memset(T,42,78);for(r=4,s=39;r<14;++r,s-=3,w+=6)for(i=0,S=s,W=w;i<r;++i,W+=2,--S)printf("%*s/%.*s\\\n",S,"",W,T);for(i=0;i<11;i++)printf("%35s|--------|\n","");printf("%35s|________|","");}

Required includes:

<!-- language: lang-cplusplus -->

    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>