Magnets are great I have been building with them for years I have 4' x 8' table with a sheet of 16 ga galvanized sheet metal on it, its great, I use the clear carpet protector film to cover and stick the plans to the table it comes in a 30" wide roll. also saves the plans from getting ripped, ca wont stick to it. when you done build just cut around the edges and roll up plans for next time