Well, I have some spare currigated siding material and some parts from the Pikestuff enginehouse I'm not using... so I figured I'd build an addition onto the Hope IGA (International Grocer's Association) building. The big thing I'm adding is a loading dock to facilitate loading and unloading of goods for the store. Question is, how big is the "bumper" on the loading dock (that piece of metal or wood on the front of the dock where the trailer might come in contact with the dock)? Just currious. (We have a loading dock at the grocery store I work at, but it's ground level and the docks in town are usually busy, so I can't measure them.) Just thought I'd ask.