How close can 2 EZ Sleeves sit next to each other? 4″ from any edge is the minimum distance. That applies to edge of concrete or edge of another hole. Updated on June 12, 2018 Was this article helpful? Yes No Related Articles Handrail Bracket Saddle Styles Measurement Worksheet for Laying out Stair Rail Fabrication Can you bend 4.00″ OD aluminum tube? What is the difference between wrought iron and cast iron? What is the difference between welding, brazing and soldering of aluminum? What is the difference between Pipe and Tube?