Lawrence Brothers Inc. - The Leading Manufacturer of Residential Hinges. Lawrence offers a 1" square hinge from it's customer line up to a an 8" square, 1/4" guage stainless steel hinge from its commercial line, with more than 30 finishes available. Records indicate 22 employees in 1900, growing to 250 in 1913 when Lawrence opened a new 250,000 square foot plant. They now employ over 250 in two manufacturing facilities that total over 500,000 square feet.