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Hilti (Canada) Corp. 1-800-363-4458 • www.hilti.ca • Hilti Firestop Systems Guide • 05/2011
Hilti. Outperform. Outlast.
Introduction
Appilcations/Products
Selector Guide
Through-Penetration
Joint
Reference Data
Hilti Firestop
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and education
Estimating Tables
TABLE 1
Calculation chart for pipe areas
Nominal pipe size
Pipe O.D.
Area (sq. in.)






























Pipe O.D. based on schedule 40 steel pipe and plastic
pipe
TABLE 2
General estimation table for CP 648-E
(Length of Wrap Strip required for  different
pipe diameters)
Nominal
Pipe Size
Length of CP 648-E Wrap Strips
 thick) Required*
1XPEHURIOD\HUVRI:UDS6WULSV












































Estimations based upon Schedule 40 PVC Plastic Pipe.
*  Estimated quantities are approximate. No allowance has
been made for waste.
TABLE 3
Estimation chart: volume of firestop at 1/2" depth (in), per penetration
Actual pipe diameter (in.)
2'












Nominal pipe size
+ROH,'
















































































































































Coverages are based on the outside diameter of schedule 40 steel pipe. * For insulated pipes, use the outside diameter of the insulation.
• For 1/4" depth, divide above number by 2.
• For 1" depth, multiply above number by 2.
• For 5/8" depth, multiply above number by 1.25.
• For 1-1/4" depth, multiply above number by 2.5.
• For 3/4" depth, multiply above number by 1.50.
Note: Walls require firestop on both sides; multiply above number again by 2.
Estimate only. Assumes no waste.
Estimating tables for through-penetrations