Gas Fitter

Gas Fitter calculates gas pipe sizes needed for gas fitting in Canada. Includes pressures up to 20 psi.

Based on the CAN/CSA B149.1 Natural Gas and Propane Installation Code Book. You must agree to the disclaimer and exclusion of liability to use this app.

Gas Fitter results conform to the following tables:

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Natural Gas:
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Sched 40 & Plastic
< 7” w.c. Table A.1 of CAN/CSA B149.1 
7”-14” w.c. Table A.2 of CAN/CSA B149.1
2 psig Table A.3 of CAN/CSA B149.1
5 psig Table A.5 of CAN/CSA B149.1
10 psig Table A.6 of CAN/CSA B149.1
20 psig Table A.7 of CAN/CSA B149.1

Copper (K Type)
< 7” w.c. Table A.8 of CAN/CSA B149.1 
7”-14” w.c. Table A.9 of CAN/CSA B149.1
2 psig Table A.10 of CAN/CSA B149.1
5 psig Table A.12 of CAN/CSA B149.1
10 psig Table A.13 of CAN/CSA B149.1
20 psig Table A.14 of CAN/CSA B149.1

Gastite
0.5 psi (0.5” drop) Table 7-1 (Gastite)
0.5 psi (1” drop) Table 7-2 (Gastite)
2 psi Table 7-10 (Gastite)
5 psi Table 7-11 (Gastite)
10 psi Table 7-12 (Gastite)


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Propane:
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Sched 40 & Plastic
11” w.c.Table B.1 of CAN/CSA B149.1
2 psig Table B.2 of CAN/CSA B149.1
5 psig Table B.3 of CAN/CSA B149.1
10 psig Table B.4 of CAN/CSA B149.1
20 psig Table B.5 of CAN/CSA B149.1

Copper (K Type)
11” w.c. Table B.6 of CAN/CSA B149.1
2 psig Table B.7 of CAN/CSA B149.1
5 psig Table B.8 of CAN/CSA B149.1
10 psig Table B.9 of CAN/CSA B149.1
20 psig Table B.10 of CAN/CSA B149.1

Gastite
0.5 psi (0.5” drop) Table 7-12 (Gastite)
0.5 psi (1” drop) Table 7-13 (Gastite)
2 psi Table 7-18 (Gastite)
5 psi Table 7-19 (Gastite)
10 psig Table 7-20 (Gastite)