Walkers & Other Double-Walled Circular Areas CP_CF"id=14"

To make accurate dust suppression estimates for any area requires knowing the volume of material to be treated.  Surface area is calculated first followed by depth to determining volume.  Accurately determining the average depth measurement is critical and is completed by taking multiple measurements throughout the proposed treatment site.  If the average depth is actually 3.0" but you measure it as 2.0 or 4.0" then the calculations will be under-estimated by a 33% or over-estimated by 25% respectively.  Either way, do yourself a favor (actually, don't cheat yourself) and make accurate measurements!  

Also, the checklist is an important component when completing an estimate since the responses to them may/will influence the final outcome These are the types of questions that influence a recommendation.

Calculator Checklist