About 2 days after taking delivery of a 2014 F350, the owner decided that he wanted to put a flatbed on it (should have ordered a chassis cab, grrrrrr.) My boss passed the project on to me. 8' x 10', and the headache rack to follow the cab body lines.

With the help of SketchUp 8, I was able to design the entire thing from the frame up. If you do not have a CAD program, I highly recommend Sketchup. Angles, dimentions, 3D view and ability to rotate around to get different views.

Here is the picture I started with to get the general layout
Click image for larger version.  Name: IMG_20131125_101100_468.jpg  Views: 486  Size: 137.3 KB  ID: 11380

Then I drew up the entire design
Click image for larger version.  Name: Flatbed_Page_5.jpg  Views: 424  Size: 143.5 KB  ID: 11384
Click image for larger version.  Name: Flatbed_Page_1.jpg  Views: 519  Size: 121.0 KB  ID: 11381
Click image for larger version.  Name: Flatbed_Page_3.jpg  Views: 451  Size: 113.2 KB  ID: 11382
Click image for larger version.  Name: Flatbed_Page_4.jpg  Views: 485  Size: 123.2 KB  ID: 11383

Day 1 - lay out the base frame, forgot to get pics before I put the deck on.
Click image for larger version.  Name: Flatbed frame.jpg  Views: 1248  Size: 127.8 KB  ID: 11376
Click image for larger version.  Name: Flatbed frame2.jpg  Views: 1032  Size: 135.4 KB  ID: 11377

Installed the deck and headache rack. The CAD design measurements was awesome. Cut everything to length, angle, etc., laid it out on the bench, verify that it was square and weld it together. Fit perfectly.
Click image for larger version.  Name: Hedache rack.jpg  Views: 1861  Size: 110.1 KB  ID: 11378
Click image for larger version.  Name: IMG_20131204_165118_587.jpg  Views: 582  Size: 131.9 KB  ID: 11379

Day 2 was finish up the top rack sides, place the 4 tool boxes and make the side and tail plates. I'll get pics of that on Monday.

Next up is the tailgate and bumper/tow hitch receiver.