Measure and mark a doorway width of 38 inches (the width plus 2 inches extra).

Opening for 32 inch door. If you want to build a double sliding barn door, on both sides. Start at the existing side and mark over to the enlarged side or center the door, alternatively. Standard door heights are 6/6 (78”) and 6/8 (80”).

As for the height, you need to add two. To ensure that you can open the sliding barn door all the way, there should be enough room next to the opening. Door widths which are considered standard usually come in sizes of 2/6 (30”), 2/8 (32”) and 3/0 (36”).

The rough opening for a 32 inch door is typically 33 inches wide and 83 inches tall. All you need to know to measure for your new murphy door.www.themurphydoor.com Thus, there is 34 inch wide rough opening will be required for a 32 inch door.

In this case, you’re likely going for two. What are the dimensions of the rough opening for 32 inch door? Don't forget to put a.

Few openings are truly plumb and square, so knowledgeable forum members recommend an additional ½” gap to accommodate for shims.