How do I add a 2 x 6 cap centered on top of a 2 x 4 double sided wall for a trash enclosure?
Start out by drawing a cross section of the wall so you can work out all the heights, horizontal starts, etc. Then just replicate your drawing starting with the material that you would first encounter if you were to walk into the exterior of the wall. In the case of a 2x6 cap on top of a 2x4 wall you would define the cap with a horizontal start of 0". Then depending on the materials and thicknesses etc of the wall below you would define the lower section. Providing a drawing that includes your wall you are trying to modify would be helpful since I have no idea what your existing wall looks like.
Bill is the owner and maintainer of SoftPlanTuts.com
Thank you Bill. That worked quite well. Bryan.