I built a giant 4' by 8' torsion box work top using three sheets of MDF (plus a little extra). Follow along to make your own. These plans are based on 49" x 97" MDF which is the normal size of MDF I have found in North America. To make the torsion box cut one of the sheets of MDF into 13 separate strips each 3.5" wide. Keep seven of those and cut the other strips into smaller blocks 7.4" or 7 13/32". Using three 2x6 or 2x8 jointed stretchers make a flat surface across two saw horses. I like using a laser level to get my surface flat, but you can also use a pair of winding sticks, or cross strings. Start by gluing down a long stretcher on one side inset about 1/2 and inch. If it starts to move around a bunch you can use some clamps to hold it in place. After this you can use a brad nailer to attach the smaller 7.4" blocks at the next row. The offset is 7.4" so you can use the bocks to space off the next one. After that, lay another long piece down and nail it in. For the next set of cross braces offset them in the center of the previous row for easier nailing. Continue this across the whole width. For gluing on the top sheet, make sure you glue the whole top edges and then brush or roll the glue so it is consistent. You can just set the top on and it should be flat. If you check which a straight edge and there are high spots you can add some weights to bring it down. After the table top has dried you can add a border around it to protect the edges. I chose hard maple, but have used pine in the past, as well as no border at all. Thanks for watching! Metabo HPT Brad Nailer Kit - https://geni.us/p4NBVnt (Amazon) Thanks for the music from StreamBeats check them out - https://www.youtube.com/channel/UCQ6hCusHlsIDXqoTbbTHSUQ