The mark consists of the wording "DOORS N'AT" in stylized black, lowercase lettering at the top and the wording DIVISION 8, 10 & 11 in stylized, black lowercase lettering at the bottom. Between the wording is a miscellaneous design of a red cloud with a wall section sketch inside it. The sketch consists of two intersecting black lines with a black oval at the top of the vertical line with the number 400 in red numerals inside the oval. At the bottom of the vertical line is a black circle in front of a black shaded triangle. Inside the circle are the numbers 1 and A-2 in red numerals and lettering with a red horizontal line between. On either side of the horizontal line is a black square with lines extending out. Above each square is a partial black rectangle with four red diagonal lines inside.