You can print them with any sized paper if you use Adobe Reader. All you have to do is open up the plans in Adobe Reader and select print. After the print window opens up there should be a section in the middle of the window labeled "Page Sizing & Handling" right below that there should be options to choose between "Size" "Poster" "Multiple" and "Booklet" You are going to want to select the "Poster" option. Next, ensure your tile scale is set to 100%, your overlap is set at 0.005 in. and that you have the "Tile only large pages" option selected. You can also select "Cut marks" which will make taping the sheets of paper together easier. Lastly, go down to the bottom of the print window and click print.
After they print you can just tape the individual sheets together.