When you say "construction", are you referring to something like drywall/framing/roofing or electrical/trim work? I ask because fitting a stack of OSB sheets in a van can be anywhere from challenging to impossible (depending on the type of van of course). Certain trim levels of the F150 for example, are designed with the specific requirement of being able to accommodate standard sizes of construction materials, like a 4x8 sheet of OSB.