I want to make a poster with size 6 ft. X 3 ft size. What kind of document class I should use for this?
\documentclass[25pt, a0papper, portrait]{tikzposter}
\special{papersize=72in,36in}
\usepackage[utf8]{inputenc}
\usepackage{xcolor}
\usepackage{pgf,color}
\usepackage{blindtext}
\usepackage{comment}
\usetheme{Board}
\title{}
\author{}
\date{\today}
\institute{}
beamerclass with thebeamerposterpackage. Take a look at the community wiki: http://tex.stackexchange.com/questions/341/how-to-create-posters-using-latex – Troy Jan 24 '17 at 16:16