L.A. Boiler Works Inc. - Manhole Terms

11" x 15" manhole rings 3/4" thick as manufactured by L.A. Boiler Works Inc. have sufficient depth if dimensions "A" & "B" are not less than indicated on the chart for thickness and radius of heads and diameter of shell. Reinforcement of openings should be calculated for each application.

12" x 16" manhole rings 3/4" thick as manufactured by L.A. Boiler Works Inc. have sufficient depth if dimensions "A" & "B" are not less than indicated on the chart for thickness and radius of heads and diameter of shell. Reinforcement of openings should be calculated for each application.

14" x 18" manhole rings 3/4" thick as manufactured by L.A. Boiler Works Inc. have sufficient depth if dimensions "A" & "B" are not less than indicated on the chart for thickness and radius of heads and diameter of shell. Reinforcement of openings should be calculated for each application.

18" X 24" manhole rings 1" thick as manufactured by L.A. Boiler Works Inc. have sufficient depth if dimensions "A" & "B" are not less than indicated on the chart for thickness and radius of heads and diameter of shell. Reinforcement of openings should be calculated for each application.