Firstly you’ll need to decide if you are going to install the Door Dam Wall to wall, Wall to catchment or catchment to catchment.
For doors that have over 300mm of room on each side, you will want to measure for catchment to catchment install.
- Measure the widest part of your shed door (including tracks) +200mm
For doors that have over 300mm of room on one side only you will want to measure for wall to catchment install.
- Measure from the wall to the furthest point on your shed door (including tracks) +100mm
For doors that have under 300mm of room on each side you will want to measure for wall to wall install.
- Measure from the wall to the opposite wall in your shed
When ordering any catchment kits, please note the catchments come with a 200mm additional piece for the catchment to return to the wall.
Ensure you have 288mm available out from your front wall clear for the install.
Catchments are interchangeable and do not have a left or right.
