First Line Sales
PO Box 200
Vernon, VT 05354

www.firstlinesales.com

Construction Estimating Formulas & Useful Information

Formulas, equations, tables, facts, specifications and other
information useful in planning and estimating construction,
decorating and other projects.

 Measure of Dimensions, Theorem ▪   Formulas, Rectangles, Squares, Triangles & Circles ▪  Board Feet Concrete Estimating ▪  Decimal and Metric Equivalents ▪  Weights, etc. ▪  Metrics ▪  Energy, Electric, Insulation ▪ Drywall Estimating,  Door Handing

Weights, Measures, and Miscellaneous information.

Doubling the diameter of a pipe increases its capacity four times.

A gallon of water weights 8.336 pounds at 39 degrees Fahrenheit (point of greatest density).

A gallon of water contains 231 cubic inches.

One cubic foot equals 1,728 inches.

One cubic foot of water equals 7-1/2 gallons.

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Weight of some common building materials.

Approximate weights of dry wood by cubic foot (not board foot).
 
Ash 3-3/4   Red  Oak 3-3/4
Birch 3-3/4   White Oak 4
Cedar 3-1/4   White Pine 2-1/3
Hemlock 2   Yellow Pine 3
Hickory 4   Poplar 2-1/2
Maple 3-1/2   Spruce 2-1/3

 

Metals: Approximate weights per cubic foot, In pounds.
 
Brass 518   Copper 550
Cast Iron 450   Lead 710
Forged Steel 490   Tin 458
Aluminum 167      

 

Concrete with Stone
Pounds per cu. ft. approx.		 150 Loose Earth
Pounds per cu. ft. approx.		 76 Dry Sand
Pounds per cu. ft. approx.		 100
Frame wall with
1/2" drywall ppsf.		 12 Floor sys 1/2" plywood
with 3/4" flr. ppsf.		 6 Roof Joist
1/2" plywood ppsf.		 3
Cell Joist
1/2" drywall ppsf.		 7 Glass 1/8" ppsf. 1.63 Glass 1/8" IG ppsf 3.25

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 Measure of Dimensions, Theorem
 Formulas, Rectangles, Squares, Triangles & Circles
 Board Feet
Concrete Estimating
Decimal and Metric Equivalents
 Weights, etc.
 Metrics
 Energy, Electric, Insulation
Drywall Estimating,  Door Handing

This information is believed to be accurate.  The Polymer Roof Factory or First Line Sales will not be liable for errors and omissions.  Specifications, detail, and other information should be verified by the user.