Step 11Adding upper buffer material
iImage Information

For similar reasons to step 8, we now need to add buffer material for the 1-2 inch cap between the beams and the top of the frame sheet. Since your body will be supported by this material we made it cover the full three lanes. Fortunately by this time, you will have lots of scraps that you can use. Flaps from boxes and spare pieces work great. The first layer will be the most work. Lay pieces flat between the beams, interpolating a surface. Tape these pieces to the beams. The first layer provides a canvas of sorts for you to lay the other pieces. Now the challenge is just to add enough cardboard so that it spans the gap between the this canvas and the top of edge of the frame sheet. Just keep layering until you have the buffer material flush with the top of the frame sheet.