Calculator form Screwbase - Calculator Fill in the ground screws calculator below and receive an offer within 2 business daysContact UsPlease enable JavaScript in your browser to complete this form.Step 1 Choose your ApplicationWhat am I constructingSelect option Shed/Chalet Summerhouse/Garden RoomGarden OfficeConservatory ExtensionIf you have a drawing or sketch, you can upload it here Click or drag a file to this area to upload. Step 2 Essential Details For Your RequestDo you know how many groundscrews you need? (If yes, please give the number and size)What is the (estimated) maximum load on each groundscrew? (in pounds)Do you know what type of soil the ground screws will be going into?Place select a optionSandClayLoamPeatOther/I don't knowDoes this project require planning permission? (If you’re in doubt your local council planning office will advise you)YesNoI don't knowDoes this project require a load test certificate? (We can provide this)YesNoI don't knowStep 3 Contact DetailsInstallation LocationAddress Line 1CityState / Province / RegionPostal CodePhoneEmail *Submit