## How do you find the weight of a rectangular duct?

Formula rectangular Duct: ((2 * (Height + Width)) * Length * Thickness) * Density metal. Formula round Duct: (Length * pi() * Diameter * Thickness) * Density metal. Below you see the result of this.

## What is the size of rectangular duct?

Rectangular HVAC Duct Sizing Rectangular or square ducting comes in standard sizes ranging from 3 inches by 7 inches to 35 inches by 40 inches. Sizing is based on airflow needs per cubic foot per minute, as well as velocity.

How do you calculate ductwork in pounds?

If you convert a typical 24 gauge low pressure galvanized ductwork productivity rate into square ft. using this formula you would calculate: 44 lbs per hour/1.156=38 square ft. per hour and install rate 25 lbs. per hour/1.156= 22 SF/hr.

### How do you calculate tubular steel weight?

Weight (kg) = Sectional Area (mm2) × Length (m) × Density (ρ, g/cm3)× 1/1000

1. The Ultimate Difference Between H-beam And I-beam Steel.
2. H Beam & I Beam Weight Calculator (Weight Chart in Kg)

### What is the weight of GI sheet?

Product Specification

Material GC
Thickness 0.80 mm
Weight In Per Square Feet 1.903 Kg
Weight In Per Square Meter 6.280 Kg
Gauge 22 G

How do you calculate CFM for a rectangular duct?

Calculating CFM

1. CFM = FPM x Duct Cross Sectional Area.
2. FPM = 4005 x √.45.
3. FPM = 2,686.
4. CFM = 2,686 x Duct Cross Sectional Area.
5. A (Duct Cross Sectional Area) = X (height in feet) x Y (width in feet)
6. A = 1.07 sq. feet.
7. CFM = FPM x Duct Cross Sectional Area.
8. CFM = 2,686 x 1.07 sq. feet.

## What gauge metal is used for ductwork?

Gage-It Right The thinnest acceptable sheet metal for ductwork used in a single dwelling is 28 gage or 0.013 and 0.018 inches for galvanized and aluminum, respectively. This measurement is for around duct smaller than 12 inches in diameter and a rectangular section no bigger than 8 inches.

## What is the formula for calculating duct size?

To calculate the required equipment size, divide the HVAC load for the entire building by 12,000. One ton equals 12,000 BTUs, so if a house or office needs 24,000 BTUs, it will take a 2-ton HVAC unit. If you get an uneven number, such as 2.33 for a 28,000 BTU load capacity, round up to a 2.5-ton unit.

How to calculate the weight of a duct?

Find the area of duct first. for example duct size is2′ X3′ and length =10′. find area ((2 +3)X2)X10′ =100 sq.ft. =100/ (3.28X3.28) = sq.meter =9.3 sq.meter if the duct is24 gauge then kg/m2 =4.5 approximately multiply area (m2) by kg/m2 we will get weight in kg.

### How tall is a duct in kinetics pipe?

1-1; Maximum Recommended Rectangular Duct Weights for Sizing Seismic Restraints [Maximum Values of Tables A3.1.2 & A3.1.7] Duct Width (in) Duct Height (in) Area (ft2) Duct Weight (lb/ft) 28 28 5.4 24 30 30 6.3 26 42 42 12.3 36 54 54 20.3 47 60 60 25.0 54 84 84 49.0 103 96 96 64.0 129 40 20 5.6 26 54 28 10.5 35 60 30 12.5 39 84 42 24.5 74

### What’s the thickness of a Duc t duct?

Duc t Thickness (mm) 0.55 to 1.0 1.0 to 1.5 > 1.5 Seam type Small Pitts Large Pitts Welded HR02 are wrap beaded (except Ga.18 ducts, and 4″ W.G. or above) with equal spacing of 305mm HR02 is offered with variety lengths up to 4000 mm *Length can vary depends on the Transverse connection Air Distribution Products Rectangular Duct 8

How big is a single wall AIC duct?

To minimize field-assembly costs, AIC Single Wall duct can be fabricated and supplied with wide range of lengths and thicknesses more than the standard sizes. Up to 4000 mm length and Ga. 11 (3 mm) thickness. All HR-Series construction is conformed with 2005 SMACNA HVAC Duct Construction standards.