All About of Plumbing Pipe Size Chart

How to Determine Suitable Pipe Sizes for Water Supply in Building?

The pipes have opted for water supply in the building according to the purpose of the building. The total cost of the building is also very important to point for choosing the pipe for water supply in the building. According to water pressure, the pipes are selected for a different building. According to the amount of water is also undertaken in selecting the pipes for water supply in the building. Read more

Plumbing Pipe Dimensions

NPS Outside diameter of pipe (inch) Inside diameter (inch) 1/8” 0.405” 0.269” 0.068” 1/4” 0.540” 0.364” 0.088” 3/8” 0.675” 0.493” 0.091” 1/2” 0.840” 0.622” 0.109” 3/4” 1.050” 0.824” 0.113” 1” 1.315” 1.049” 0.133” 1-1/4” 1.660” 1.380” 0.140” 1-1/2” 1.900” 1.610” 0.145” 2” 2.375” 2.067” 0.154” 2-1/2” 2.875” 2.469” 0.203” 3” 3.500” 3.068” 0.216” 4” 4.500” 4.026” 0.237” 5” 5.563” 5.047” 0.258” 6” 6.625” 6.065” 0.280” 8” 8.625” 7.981” 0.322” 10” 10.750” 10.020” 0.365” 12” 12.750” 11.938” 0.406” 14” 14.000” 13.126” 0.437” 16” 16.000” 15.000” 0.500” 18” 18.000” 16.876” 0.562” 20” 20.000” 18.814” 0.593” 24” 24.000” 22.626” 0.687” Read more

2. Steel Pipe Sizes

NPS Outside diameter(inch) Inside diameter (inch) Wall thickness (inch) 1/8 .0405” 0.215” 0.095” 1/4 0.540” 0.302” .0119” 3/8 0.675” 0.423” 0.126” 1/2 0.840” 0.546” 0.147” 3/4 1.050” 0.742” 0.154” 1 1.315” 0.957” 0.179” 1-1/4 1.660” 1.278” 0.191” 1-1/2 1.900” 1.500” 0.200” 2 2.375” 1.939” 0.218” 2-1/2 2.875” 2.323” 0.276” 3 3.500” 2.900” 0.300” 3-1/2 4.000” 3.364” 0.318” 4 4.500” 3.826” 0.337” 5 5.563”a 4.813” 0.375” 6 6.625” 5.761” 0.432” 8 8.625” 7.625” 0.500” 10 10.750” 9.562” 0.594” 12 12.75” 11.374” 0.688” 14 14.000” 12.500” 0.750” 16 16.000” 14.312” 0.844” 18 18.000” 16.124” 0.938” 20 20.000” 17.938” 1.031” 24 24.000” 21.562” 1.219” Read more

Water Supply Line Size for Residential Building

Individual Fixtures Minimum Pipe Size (inch) Private Home Bar sink ½” 1.5 Bathtub or shower ½” 4.0 Cloth washer ½” 1.0 Dishwasher ½” 1.5 Hose bib ½” 2.5 Hose bib additional ½” 1.0 Kitchen sink ½” 1.5 Laundry link ½” 2.0 Bathroom sink ½” 1.0 Shower ½” 2.0 Toilet Gravity tank 1.6 ½” 2.5 Toilet gravity tank 3.5> ½” 3.0 Whirlpool bath ½” 4.0 Read more

Standard Plumbing Pipe Size

The main factor which are responsible for water distribution is the cost of the project. Water pressure is another criterion of the pie size selection. We need to keep in our mind that each property has different water pressure. Due to internal friction in the pipe, there are a loss of pressure happens. To overcome the loss of pressure we need to keep it into our mind. To avoid noise and pipe erosion we need to restrict the flow of water. Economical consideration is the another govern selection process for pipe selection. But many times we use most economical pipes. Read more

Procedure of Determination of Pipe Sizes for Water Distribution in Buildings

At first, we draw all the horizontal main lines, branch lines, and risers Then we calculate weight from table 1 and table 2 Then we specify water demand in gallons per millimeter. After that, we estimate the equivalent length of pipe and this is starting from the main street line. Next, we determine the average minimum pressure in the main street line. Then we calculate the pressure loss in the pipes by using an equivalent length of pipe. After that, we finally choose the size of the pipe. Read more

Table 2: Domestic Water Fixture and Size of Pipe Requirement

Domestic Water Private Public Hot Water Bathtub (with or without overhead shower) 2 4 12.7 12.7 Bidet Combination sink and tray 3 - 12.7 12.7 Combination unit and tray with food disposal unit 4 Dental unit 1 9.525 Dental lavatory 1 2 12.7 12.7 Dish water, domestic 2 Drinking fountain 1 2 9.525 Floor drains 1 Kitchen sink 2 4 12.7 12.7 Kitchen sink domestic with food waste grinder 3 Lavatory 1 19.05 9.525 Lavatory 2 12.7 12.7 Lavatory, beauty parlour, barber 2 Lavatory, surgeon’s 2 Laundry tray 2 4 12.7 12.7 Shower 2 4 12.7 12.7 Surgeon sink 3 12.7 12.7 Sink (trap standard) 3 12.7 12.7 Sink (P trap) 2 4 12.7 12.7 Urinal, pedestal, siphon jet 10 12.7 Urinal, wall lip 5 12.7 Urinal with flush tank 3 Wash sink 2 12.7 12.7 Tank operated Water closet 3 5 19.05 Valve operated water closet 6 10 25.4 Read more

Table 2: Drainage Water Fixture and Size of Pipe Requirement

Drainage Fixture-Unit Value as Load Factors Bathtub 2 38.1 Bidet Combination sink and tray 2 Combination tray with food disposal unit 3 Dental unit 1 31.75 Dental lavatory 2 Dish water 2 38.1 Drinking fountain 1 31.75 Floor drains 2 50.8 Kitchen sink 2 or 3 38.1 Kitchen sink with waster grinder 2 Lavatory 1 31.75 Lavatory 2 38.1 Beauty parlour, barber 2 Surgeon lavatory 2 Laundry tray 2 Shower 2 50.8 Sink flushing with valve 6 76.2 Sink (trap standard) 3 Sink (P trap) 3 50.8 Sink pot 3 38.1 Urinal, pedestal 6 76.2 Wall urinal 2 38.1 Urinal stall 2 50.8 Urinal with flush tank 2 38.1 Wash sink 3 Water closet with tank 4 76.2 Valve operated water closet 6 Read more

Plumbing Pipe Sizing Chart

NPS Outside diameter of pipe (inch) 1/8” 0.405” 1/4” 0.540” 3/8” 0.675” 1/2” 0.840” 3/4” 1.050” 1” 1.315” 1-1/4” 1.660” 1-1/2” 1.900” 2” 2.375” 2-1/2” 2.875” 3” 3.500” 4” 4.500” 5” 5.563” 6” 6.625” 8” 8.625” 10” 10.750” 12” 12.750” Read more

Kitchen Sink Drain Pipe Size

Kitchen sink: 3 1/2 inches Bathroom sink: 1 1/4 inches Bar sink: 2 inches Toilets: 3 inches Washing machines and laundry sinks: 2 inches Showers and bathtubs: 1.5 inches Read more

How to Find Standard Sewage Pipe Sizes?

Sewer Pipe Sizing Chart

Decline and Slope

Water Pipe Sizing Chart

Meter & Street Service (inches) Building Supply & Branches (inches) Maximum Allowable Length (feet) 40 60 80 100 150 200 250 300 400 500 600 700 800 900 1000 Pressure Range - 30 to 45 psi (available static pressure after head loss) 3/4 1/2 6 5 4 3 2 1 1 1 0 0 0 0 0 0 0 3/4 3/4 16 16 14 12 9 6 5 5 4 4 3 2 2 2 1 3/4 1 29 25 23 21 17 15 13 12 10 8 6 6 6 6 6 1 1 36 31 27 25 20 17 15 13 12 10 8 6 6 6 6 3/4 1-1/4 36 33 31 28 24 23 21 19 17 16 13 12 12 11 11 1 1-1/4 54 47 42 38 32 28 25 23 19 17 14 12 12 11 11 1-1/2 1-1/4 78 68 57 48 38 32 28 25 21 18 15 12 12 11 11 1 1-1/2 85 84 79 65 56 48 43 38 32 28 26 22 21 20 20 1-1/2 1-1/2 150 124 105 91 70 57 49 45 36 31 26 23 21 20 20 2 1-1/2 151 129 129 110 80 64 53 46 38 32 27 23 21 20 20 1 2 85 85 85 85 85 85 82 80 66 61 57 52 49 46 43 1-1/2 2 220 205 190 176 155 138 127 120 104 85 70 61 57 54 51 2 2 370 327 292 265 217 185 164 147 124 96 70 61 57 54 51 2 2-1/2 445 418 390 370 330 300 280 265 240 220 198 175 158 143 133 Pressure Range - 46 to 60 psi (available static pressure after head loss) 3/4 1/2 7 7 6 5 4 3 2 2 1 1 1 0 0 0 0 3/4 3/4 20 20 19 17 14 11 9 8 6 5 4 4 3 3 3 3/4 1 39 39 36 33 28 23 21 19 17 14 12 10 9 8 8 1 1 39 39 39 36 30 25 23 20 18 15 12 10 9 8 8 3/4 1-1/4 39 39 39 39 39 39 34 32 27 25 22 19 19 17 16 1 1-1/4 78 78 76 67 52 44 39 36 30 27 24 20 19 17 16 1-1/2 1-1/4 78 78 78 78 66 52 44 39 33 29 24 20 19 17 16 1 1-1/2 85 85 85 85 85 85 80 67 55 49 41 37 34 32 30 1-1/2 1-1/2 151 151 151 151 128 105 90 78 62 52 42 38 35 32 30 2 1-1/2 151 151 151 151 150 117 98 84 67 55 42 38 35 32 30 1 2 85 85 85 85 85 85 85 85 85 85 85 85 85 83 80 1-1/2 2 370 370 340 318 272 240 220 198 170 150 135 123 110 102 94 2 2 370 370 370 370 368 318 280 250 205 165 142 123 110 102 94 2 2-1/2 654 640 610 580 535 500 470 440 400 365 335 315 285 267 250 Pressure Range - over 60 psi (available static pressure after head loss) 3/4 1/2 7 7 7 6 5 4 3 3 2 1 1 1 1 1 0 3/4 3/4 20 20 20 20 17 13 11 10 8 7 6 6 5 4 4 3/4 1 39 39 39 39 35 30 27 24 21 17 14 13 12 12 11 1 1 39 39 39 39 38 32 29 26 22 18 14 13 12 12 11 3/4 1-1/4 39 39 39 39 39 39 39 39 34 28 26 25 23 22 21 1 1-1/4 78 78 78 78 74 62 53 47 39 31 26 25 23 22 21 1-1/2 1-1/4 78 78 78 78 78 74 65 54 43 34 26 25 23 22 21 1 1-1/2 85 85 85 85 85 85 85 85 81 64 51 48 46 43 40 1-1/2 1-1/2 151 151 151 151 151 151 130 113 88 73 51 51 46 43 40 2 1-1/2 151 151 151 151 151 151 142 122 98 82 64 51 46 43 40 1 2 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 1-1/2 2 370 370 370 370 360 335 305 282 244 212 187 172 153 141 129 2 2 370 370 370 370 370 370 370 340 288 245 204 172 153 141 129 2 2-1/2 654 654 654 654 654 650 610 570 510 460 430 404 380 356 329 Read more

Water Pipe Sizing Chart Fixture Units

Sr.No. Appliances, Appurtenances, or Fixtures Minimum Fixture Branch Pipe Size (inches) Private Publi c 1 Bathtub or Combination Bath/Shower 1/2 4 4 2 3/4" Bathtub Fill Valve 3/4 10 10 3 Bidet 1/2 1 -- 4 Clothes Washer 1/2 4 4 5 Dental Unit, Cuspidor 1/2 -- 1 6 Dishwasher, Domestic 1/2 1.5 1.5 7 Drinking Fountain or Water Cooler 1/2 0.5 0.5 8 Hose Bibb 1/2 2.5 2.5 9 Hose Bibb, Each Additional 1/2 1 1 10 Lavatory 1/2 1 1 11 Lawn Sprinkler, Each Head -- 1 1 12 Mobile Home, Each (minimum) -- 12 -- 13 Bar Sink 1/2 1 2 14 Clinic Faucet SInk 1/2 -- 3 15 Clinic Flushometer Valve Sink (with or without faucet) 1 -- 8 16 Kitchen Sink, Domestic (with or without dishwasher) 1/2 1.5 1.5 17 Laundry Sink 1/2 1.5 1.5 18 Service Sink or Mop Basin 1/2 1.5 1.5 19 Washup Sink (each set of faucets) 1/2 -- 2 20 Shower, Per Head 1/2 2 2 21 Urinal, Flush Tank 1/2 2 2 22 Wash Fountain (circular spray) 3/4 -- 4 23 Water Closet, 1.6 GPF Gravity Tank 1/2 2.5 2.5 24 Water Closet, 1.6 GPF Flushometer Tank 1/2 2.5 2.5 25 Water Closet, Greater Than 1.6 GPF Gravity Tank 1/2 3 5.5 Read more

Water Pipe Sizing Chart PDF: Click Here

Minimum Pipe Diamater Water Temp Cold Host Toilet 3/8" - Bathtub 1/2" 1/2" Lavatory (sink) 3/8" 3/8" Shower 1/2" 1/2" Bar sink 3/8" 3/8" Kitchen sink 1/2" 1/2" Bar sink 3/8" 3/8" Dishwasher - 3/8" to 1/2" Washing machine 1/2" 1/2" Laundry sink 1/2" 1/2" Water heater 3/4" - Hose bibb 1/2" to 3/4" - Read more

Domestic Water Pipe Sizing

Fixture Minimum Pipe Size (in.) Flow Rate (GPM) Pressure (psi) Drinking Fountain 5/8" 4 8 Bathtub 1/2" 2.75 8 Lavatory (sink) 3/8" 0.75 8 Shower 1/2" 5,15 8,15 Kitchen sink 1/2" 2.5 8 Laundry 1/2" 4 8 Hose bibb 1/2" Int, 3/4" Ext 2 8 Service Sink 1/2" 3 8 Urinal Flush Valve 3/4" 1.6 15 Water Closet Tank 3/8" 1.6 15 Water Closet Valve 1" 1.6 15 Read more

IPC Water Pipe Sizing

Fixture (Source IPC) Cold Hot Total Bidet, Private 1.5 1.50 2.00 DishWash-Private 0.00 1.40 1.40 Drinking Fountain 0.25 0.00 0.25 Kitchen Sink, Public 3.00 3.00 4.00 Kitchen Sink, Private 1.00 1.00 1.40 Laundry Tray, Private 1.00 1.00 1.40 Lav, Private 0.50 0.50 0.70 Lav, Public 1.50 1.50 2.00 Service Sink 2.25 2.25 3.00 Shower, Private 1.00 1.00 1.40 Shower, Public 3.00 3.00 4.00 Urinal, Priv, Flush 10.00 0.00 10.00 Urinal, 3/4” Priv, Flush 5.00 0.00 5.00 Urinal, Public, Tank 3.00 0.00 3.00 Wash Mach Lg, Pub 3.00 3.00 4.00 Wash Mach Sm, Pub 2.25 2.25 3.00 Wash Mach Sm, Pri 1.00 1.00 1.40 WC, Pri, Tank 2.20 0.00 2.20 WC, Pri, Flush 6.00 0.00 6.00 WC, Pub, Tank 5.00 0.00 5.00 WC, Pub, Flush 10.00 0.00 10.00 Bathroom group, private, flush tank 2.70 1.50 3.60 Bathroom group, private, flush valve 6.00 3.00 8.00 Bathtub, private, faucet 1.00 1.00 1.40 Bathtub, public, faucet 3.00 3.00 4.00 Combination fixture, private, faucet 2.25 2.25 3.00 Read more

Water Supply Line Size Calculation

WCs: 4 X 10 wsfu = 40 wsfu 2 Lavs: 2 X 1.5 wsfu = 3 wsfu Total wsfu: 40 + 3 = 43 Read more

Domestic Water Pipe Sizing Calculation

Irrigation Pipe Size Calculation

Water Supply Line Size Calculation

Standard Water Pipe Size House

What Size Water Line for House?

What Size Water Line from Well to House?

What Size P Trap for Bathroom Sink?

What Size Is Bathroom Sink Drain Pipe?

What Size Pex for Shower?

How to Determine Size of Plumbing Pipe?

How to Measure Pipe Fittings?

Main Water Line Size for House

Bathtub Supply Line Size

Bathroom Sink Supply Line Size

Toilet Supply Line Size

Toilet Connector Hose Sizes

Kitchen Sink Supply Line Size

Washing Machine Supply Line Size

Bath Faucet Supply Line Size

Standard Toilet Drain Pipe Size

Standard Shower Drain Pipe Size

Standard Bathroom Sink Drain Pipe Size

Standard Sink Drain Size

Standard Water Line Size

Standard Water Heater Pipe Size

Standard Water Pipe Sizes

Standard P Trap Size for Bathroom Sink

How to Determine Pipe Size?

How to Measure PVC Pipe Size?

Plumbing Pipe

Busted Pipe

Hydro Jetting Plumbing

Busted Water Pipe

Sewer Clean Out

Step 1: Loosen the Cap on the Drain Pipe. Loosen the Cap on the Drain Pipe. Step2: Feed the Auger Cable into the Drain Pipe. Step 3: Run the Auger Until the Clog Is Clear—and Beyond. Step 4: Hose Down the Pipe and Auger Cable. Step 5: Slowly Pull the Auger Back Out of the Pipe. Read more

Bathroom Faucet Connection Size

What Size Is Standard House Water Pipe?

Plumbing Thread Sizes

Kitchen Sink Drain Pipe: 1 1/2 inches Bathroom Sink Drain Pipe: 1 1/4 inches Shower Drain Pipe: 2 inches Toilet Drain Pipe: 3 inches Bathtub Drain Pipe: 1 1/2 or 2 inches Washing Machine Drain Pipe: 2 inches Dishwasher Drain Pipe: 1 1/2 inches Floor Drain Pipe: 2 inches or larger, depending on the expected flow rate Read more

Drainage Pipe Sizes Chart

Residential Drainage Pipe: 4 inches or 6 inches Commercial Drainage Pipe: 8 inches or larger, depending on the expected flow rate Stormwater Drainage Pipe: 6 inches or larger, depending on the expected flow rate and the surface area that needs to be drained Read more

Water Supply Pipe Diameter in Mm

Residential Water Supply Line: 3/4 inch or 1 inch Commercial Water Supply Line: 1 inch or larger, depending on the expected flow rate and the number of fixtures that will be connected to the water supply system Industrial Water Supply Line: 2 inches or larger, depending on the expected flow rate and the type of industrial process that requires water Read more

Water Pipe Diameter Chart

1/2 inch water pipe diameter: suitable for low water pressure and small flow rates, such as individual fixtures or appliances, such as faucets and washing machines. 3/4 inch water pipe diameter: suitable for most residential homes with moderate water flow demands. 1 inch water pipe diameter: suitable for larger homes with high water demand or commercial buildings with moderate water demand. 1 1/4 inch water pipe diameter: suitable for commercial buildings with high water demand, such as large apartment complexes or hotels. 1 1/2 inch or larger water pipe diameter: suitable for industrial applications, such as factories or water treatment plants. Read more

Toilet Waste Pipe Size

Copper Pipes : Copper pipes come in various sizes ranging from 1/4 inch to 8 inches in diameter. They are commonly used for water supply lines and can withstand high pressures. PVC Pipes : PVC pipes come in various sizes ranging from 1/2 inch to 24 inches in diameter. They are commonly used for drainage, waste and vent (DWV) systems. PEX Pipes : PEX pipes come in various sizes ranging from 3/8 inch to 1 inch in diameter. They are commonly used for water supply lines and are flexible, making them easy to install. Galvanized Steel Pipes : Galvanized steel pipes come in various sizes ranging from 1/2 inch to 6 inches in diameter. They are commonly used for water supply lines, but are prone to corrosion over time. Read more

Toilet Pipe Size

Plumbing Size Chart

1/2 inch diameter: Suitable for low water pressure and small flow rates, such as individual fixtures or appliances, such as faucets and washing machines. 3/4 inch diameter: Suitable for most residential homes with moderate water flow demands. 1 inch diameter: Suitable for larger homes with high water demand or commercial buildings with moderate water demand. 1 1/4 inch diameter: Suitable for commercial buildings with high water demand, such as large apartment complexes or hotels. Read more

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NPS	Outside diameter of pipe (inch)	Inside diameter (inch)
1/8”	0.405”	0.269”	0.068”
1/4”	0.540”	0.364”	0.088”
3/8”	0.675”	0.493”	0.091”
1/2”	0.840”	0.622”	0.109”
3/4”	1.050”	0.824”	0.113”
1”	1.315”	1.049”	0.133”
1-1/4”	1.660”	1.380”	0.140”
1-1/2”	1.900”	1.610”	0.145”
2”	2.375”	2.067”	0.154”
2-1/2”	2.875”	2.469”	0.203”
3”	3.500”	3.068”	0.216”
4”	4.500”	4.026”	0.237”
5”	5.563”	5.047”	0.258”
6”	6.625”	6.065”	0.280”
8”	8.625”	7.981”	0.322”
10”	10.750”	10.020”	0.365”
12”	12.750”	11.938”	0.406”
14”	14.000”	13.126”	0.437”
16”	16.000”	15.000”	0.500”
18”	18.000”	16.876”	0.562”
20”	20.000”	18.814”	0.593”
24”	24.000”	22.626”	0.687”

NPS	Outside diameter(inch)	Inside diameter (inch)	Wall thickness (inch)
1/8	.0405”	0.215”	0.095”
1/4	0.540”	0.302”	.0119”
3/8	0.675”	0.423”	0.126”
1/2	0.840”	0.546”	0.147”
3/4	1.050”	0.742”	0.154”
1	1.315”	0.957”	0.179”
1-1/4	1.660”	1.278”	0.191”
1-1/2	1.900”	1.500”	0.200”
2	2.375”	1.939”	0.218”
2-1/2	2.875”	2.323”	0.276”
3	3.500”	2.900”	0.300”
3-1/2	4.000”	3.364”	0.318”
4	4.500”	3.826”	0.337”
5	5.563”a	4.813”	0.375”
6	6.625”	5.761”	0.432”
8	8.625”	7.625”	0.500”
10	10.750”	9.562”	0.594”
12	12.75”	11.374”	0.688”
14	14.000”	12.500”	0.750”
16	16.000”	14.312”	0.844”
18	18.000”	16.124”	0.938”
20	20.000”	17.938”	1.031”
24	24.000”	21.562”	1.219”

Individual Fixtures	Minimum Pipe Size (inch)	Private Home
Bar sink	½”	1.5
Bathtub or shower	½”	4.0
Cloth washer	½”	1.0
Dishwasher	½”	1.5
Hose bib	½”	2.5
Hose bib additional	½”	1.0
Kitchen sink	½”	1.5
Laundry link	½”	2.0
Bathroom sink	½”	1.0
Shower	½”	2.0
Toilet Gravity tank 1.6	½”	2.5
Toilet gravity tank 3.5>	½”	3.0
Whirlpool bath	½”	4.0

	Domestic Water

	Private	Public	Hot Water
Bathtub (with or without overhead shower)	2	4	12.7	12.7
Bidet	2	4	12.7	12.7
Combination sink and tray	3	-	12.7	12.7
Combination unit and tray with food disposal unit	4
Dental unit		1		9.525
Dental lavatory	1	2	12.7	12.7
Dish water, domestic	2
Drinking fountain	1	2		9.525
Floor drains	1
Kitchen sink	2	4	12.7	12.7
Kitchen sink domestic with food waste grinder	3
Lavatory	1		19.05	9.525
Lavatory		2	12.7	12.7
Lavatory, beauty parlour, barber		2
Lavatory, surgeon’s	2
Laundry tray	2	4	12.7	12.7
Shower	2	4	12.7	12.7
Surgeon sink	3		12.7	12.7
Sink (trap standard)	3		12.7	12.7
Sink (P trap)	2	4	12.7	12.7
Urinal, pedestal, siphon jet		10		12.7
Urinal, wall lip		5		12.7
Urinal with flush tank		3
Wash sink		2	12.7	12.7
Tank operated Water closet	3	5		19.05
Valve operated water closet	6	10		25.4

	Drainage
	Fixture-Unit Value as Load Factors
Bathtub	2	38.1
Bidet	2
Combination sink and tray	2
Combination tray with food disposal unit	3
Dental unit	1	31.75
Dental lavatory	2	31.75
Dish water	2	38.1
Drinking fountain	1	31.75
Floor drains	2	50.8
Kitchen sink	2 or 3	38.1
Kitchen sink with waster grinder	2	38.1
Lavatory	1	31.75
Lavatory	2	38.1
Beauty parlour, barber	2
Surgeon lavatory	2
Laundry tray	2
Shower	2	50.8
Sink flushing with valve	6	76.2
Sink (trap standard)	3	76.2
Sink (P trap)	3	50.8
Sink pot	3	38.1
Urinal, pedestal	6	76.2
Wall urinal	2	38.1
Urinal stall	2	50.8
Urinal with flush tank	2	38.1
Wash sink	3	38.1
Water closet with tank	4	76.2
Valve operated water closet	6	76.2

Meter & Street Service (inches)	Building Supply & Branches (inches)	Maximum Allowable Length (feet)
		40	60	80	100	150	200	250	300	400	500	600	700	800	900	1000
Pressure Range - 30 to 45 psi (available static pressure after head loss)
3/4	1/2	6	5	4	3	2	1	1	1	0	0	0	0	0	0	0
3/4	3/4	16	16	14	12	9	6	5	5	4	4	3	2	2	2	1
3/4	1	29	25	23	21	17	15	13	12	10	8	6	6	6	6	6
1	1	36	31	27	25	20	17	15	13	12	10	8	6	6	6	6
3/4	1-1/4	36	33	31	28	24	23	21	19	17	16	13	12	12	11	11
1	1-1/4	54	47	42	38	32	28	25	23	19	17	14	12	12	11	11
1-1/2	1-1/4	78	68	57	48	38	32	28	25	21	18	15	12	12	11	11
1	1-1/2	85	84	79	65	56	48	43	38	32	28	26	22	21	20	20
1-1/2	1-1/2	150	124	105	91	70	57	49	45	36	31	26	23	21	20	20
2	1-1/2	151	129	129	110	80	64	53	46	38	32	27	23	21	20	20
1	2	85	85	85	85	85	85	82	80	66	61	57	52	49	46	43
1-1/2	2	220	205	190	176	155	138	127	120	104	85	70	61	57	54	51
2	2	370	327	292	265	217	185	164	147	124	96	70	61	57	54	51
2	2-1/2	445	418	390	370	330	300	280	265	240	220	198	175	158	143	133
Pressure Range - 46 to 60 psi (available static pressure after head loss)
3/4	1/2	7	7	6	5	4	3	2	2	1	1	1	0	0	0	0
3/4	3/4	20	20	19	17	14	11	9	8	6	5	4	4	3	3	3
3/4	1	39	39	36	33	28	23	21	19	17	14	12	10	9	8	8
1	1	39	39	39	36	30	25	23	20	18	15	12	10	9	8	8
3/4	1-1/4	39	39	39	39	39	39	34	32	27	25	22	19	19	17	16
1	1-1/4	78	78	76	67	52	44	39	36	30	27	24	20	19	17	16
1-1/2	1-1/4	78	78	78	78	66	52	44	39	33	29	24	20	19	17	16
1	1-1/2	85	85	85	85	85	85	80	67	55	49	41	37	34	32	30
1-1/2	1-1/2	151	151	151	151	128	105	90	78	62	52	42	38	35	32	30
2	1-1/2	151	151	151	151	150	117	98	84	67	55	42	38	35	32	30
1	2	85	85	85	85	85	85	85	85	85	85	85	85	85	83	80
1-1/2	2	370	370	340	318	272	240	220	198	170	150	135	123	110	102	94
2	2	370	370	370	370	368	318	280	250	205	165	142	123	110	102	94
2	2-1/2	654	640	610	580	535	500	470	440	400	365	335	315	285	267	250
Pressure Range - over 60 psi (available static pressure after head loss)
3/4	1/2	7	7	7	6	5	4	3	3	2	1	1	1	1	1	0
3/4	3/4	20	20	20	20	17	13	11	10	8	7	6	6	5	4	4
3/4	1	39	39	39	39	35	30	27	24	21	17	14	13	12	12	11
1	1	39	39	39	39	38	32	29	26	22	18	14	13	12	12	11
3/4	1-1/4	39	39	39	39	39	39	39	39	34	28	26	25	23	22	21
1	1-1/4	78	78	78	78	74	62	53	47	39	31	26	25	23	22	21
1-1/2	1-1/4	78	78	78	78	78	74	65	54	43	34	26	25	23	22	21
1	1-1/2	85	85	85	85	85	85	85	85	81	64	51	48	46	43	40
1-1/2	1-1/2	151	151	151	151	151	151	130	113	88	73	51	51	46	43	40
2	1-1/2	151	151	151	151	151	151	142	122	98	82	64	51	46	43	40
1	2	85	85	85	85	85	85	85	85	85	85	85	85	85	85	85
1-1/2	2	370	370	370	370	360	335	305	282	244	212	187	172	153	141	129
2	2	370	370	370	370	370	370	370	340	288	245	204	172	153	141	129
2	2-1/2	654	654	654	654	654	650	610	570	510	460	430	404	380	356	329

Sr.No.	Appliances, Appurtenances, or Fixtures	Minimum Fixture Branch Pipe Size (inches)	Private	Public
1	Bathtub or Combination Bath/Shower	1/2	4	4
2	3/4" Bathtub Fill Valve	3/4	10	10
3	Bidet	1/2	1	--
4	Clothes Washer	1/2	4	4
5	Dental Unit, Cuspidor	1/2	--	1
6	Dishwasher, Domestic	1/2	1.5	1.5
7	Drinking Fountain or Water Cooler	1/2	0.5	0.5
8	Hose Bibb	1/2	2.5	2.5
9	Hose Bibb, Each Additional	1/2	1	1
10	Lavatory	1/2	1	1
11	Lawn Sprinkler, Each Head	--	1	1
12	Mobile Home, Each (minimum)	--	12	--
13	Bar Sink	1/2	1	2
14	Clinic Faucet SInk	1/2	--	3
15	Clinic Flushometer Valve Sink (with or without faucet)	1	--	8
16	Kitchen Sink, Domestic (with or without dishwasher)	1/2	1.5	1.5
17	Laundry Sink	1/2	1.5	1.5
18	Service Sink or Mop Basin	1/2	1.5	1.5
19	Washup Sink (each set of faucets)	1/2	--	2
20	Shower, Per Head	1/2	2	2
21	Urinal, Flush Tank	1/2	2	2
22	Wash Fountain (circular spray)	3/4	--	4
23	Water Closet, 1.6 GPF Gravity Tank	1/2	2.5	2.5
24	Water Closet, 1.6 GPF Flushometer Tank	1/2	2.5	2.5
25	Water Closet, Greater Than 1.6 GPF Gravity Tank	1/2	3	5.5

Minimum Pipe Diamater
Water Temp	Cold	Host
Toilet	3/8"	-
Bathtub	1/2"	1/2"
Lavatory (sink)	3/8"	3/8"
Shower	1/2"	1/2"
Bar sink	3/8"	3/8"
Kitchen sink	1/2"	1/2"
Bar sink	3/8"	3/8"
Dishwasher	-	3/8" to 1/2"
Washing machine	1/2"	1/2"
Laundry sink	1/2"	1/2"
Water heater	3/4"	-
Hose bibb	1/2" to 3/4"	-

Fixture	Minimum Pipe Size (in.)	Flow Rate (GPM)	Pressure (psi)
Drinking Fountain	5/8"	4	8
Bathtub	1/2"	2.75	8
Lavatory (sink)	3/8"	0.75	8
Shower	1/2"	5,15	8,15
Kitchen sink	1/2"	2.5	8
Laundry	1/2"	4	8
Hose bibb	1/2" Int, 3/4" Ext	2	8
Service Sink	1/2"	3	8
Urinal Flush Valve	3/4"	1.6	15
Water Closet Tank	3/8"	1.6	15
Water Closet Valve	1"	1.6	15

Fixture (Source IPC)	Cold	Hot	Total
Bidet, Private	1.5	1.50	2.00
DishWash-Private	0.00	1.40	1.40
Drinking Fountain	0.25	0.00	0.25
Kitchen Sink, Public	3.00	3.00	4.00
Kitchen Sink, Private	1.00	1.00	1.40
Laundry Tray, Private	1.00	1.00	1.40
Lav, Private	0.50	0.50	0.70
Lav, Public	1.50	1.50	2.00
Service Sink	2.25	2.25	3.00
Shower, Private	1.00	1.00	1.40
Shower, Public	3.00	3.00	4.00
Urinal, Priv, Flush	10.00	0.00	10.00
Urinal, 3/4” Priv, Flush	5.00	0.00	5.00
Urinal, Public, Tank	3.00	0.00	3.00
Wash Mach Lg, Pub	3.00	3.00	4.00
Wash Mach Sm, Pub	2.25	2.25	3.00
Wash Mach Sm, Pri	1.00	1.00	1.40
WC, Pri, Tank	2.20	0.00	2.20
WC, Pri, Flush	6.00	0.00	6.00
WC, Pub, Tank	5.00	0.00	5.00
WC, Pub, Flush	10.00	0.00	10.00
Bathroom group, private, flush tank	2.70	1.50	3.60
Bathroom group, private, flush valve	6.00	3.00	8.00
Bathtub, private, faucet	1.00	1.00	1.40
Bathtub, public, faucet	3.00	3.00	4.00
Combination fixture, private, faucet	2.25	2.25	3.00

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