Technical Resource Guide_WEB_BEL25-D-516650 - Page 16 of 84

16 | belgard ® product installation guide | belgard.com | 877-235-4273 A quick way to establish a line perpendicular to an edge (no corner walls) is with the following procedure: • Measure and mark the length of the edge, or line, from which paving will begin. The line can be 10-20 ft. (3-7m.) long. This line is where an edge restraint will be placed, or where one is already placed. • Mark exactly the half way point on the line that was just measured. In other words, divide the line in half. • Take one tape measure and extend it from the other end of the line at an angle toward the center. Be sure the tape extends past the middle of the line by a foot or two (0.2m.-0.6m). • Take a second tape measure and extend it from the other end of the line at an angle toward the center. • Overlap one tape on the other and match the length of both tapes. The same marked dimensions on each tape should be touching each other. • Snap a line from the point where the two tape measures cross to the center of the line. • This line is perpendicular to the line from which paving will begin. 6' (3m) 8' (4m) 10' (5m) 90° 8' (4m) 10' (5m) 6' (3m) 90° Edge Restraint Exact Midpoint Tape Measures String Line Equi-distant from midpoint 3:4:5 Triangle may be used to establish a 90 degree angle or to check existing corners: