Shellac and Stain Quantity And Cost Calculator

This calculator requires the use of Javascript enabled and capable browsers. Though it does intensive math calculations, it is a close estimator and enables the user to approximate the amount of shellac and stain required for a given surface, based on parameters entered. THIS IS A COMPLEX CALCULATOR! Pay close attention to the instructions and options. It calculates the square footage of surfaces requiring finish, less any deducted area. It assumes no deductions; it also assumes that surfaces are generally flat. For surface deductions, you may use fractions such as 1.5 or .8 in the deductions field. The entry of 1 is 4 square feet of deduction from the square footage. It assumes that application shellac goes on at about 280 square feet per gallon and 200 square feet for base stain; you may change either or both if you wish. It also assumes surfaces are smooth but allows for both roughness and dryness of the surface. It takes into consideration spraying, which takes slightly more finish shellac or stain than the alternatives, brushing or rolling, either of which requires roughly the same quantity of finish but less than spraying. It considers one or two application shellac coats and assumes no base stain coat. The algorithm for the base coat is slightly different based (no pun intended) on the different composition of base coat stain; it also allows for a different price. NOTE: The square footage of the surface is based on the entered actual or estimated measurements. All other square footage reporting is CALCULATED based on the entered surface size and the perceived rate of finish coverage determined by coverage options selected.

It also considers surface texture; standard texture is that of a similar appearance to a generally smooth and dry surface. Uncheck the default if the surface is very smooth and not dry. Rough and dry surfaces take up to 65% more finish for the same square footage as generally smooth surfaces. Because of the varied conditions of such surfaces, we consider it as more square footage since in reality, it is just that. If you wish to finish the surface and it is NOT smooth and is dry, check one box or the other; you may also check both boxes if you feel the surface is very porous or extremely rough. Checking both will calculate a much higher square footage than actual but calculates very closely to the required quantity of finish. If you wish to use a stain base coat, check the base coat box. Enter the cost of the shellac per gallon for the application and for the base stain coat, if used; the total prices of the finishes required are calculated. You may also enter labor cost per hour and the estimated number of hours; or your may enter 1 hour and the prices estimate for the labor for the entire job. To do another, click the Clear Values button and then enter a new set of values. You may also wish to just change certain fields and recalculate; however, remember that you MUST click Calculate after each modification or group of modifications prior to seeing the corrected final values. Calculated accuracy of current Javascript enabled browsers is generally 16 places. Be aware that the surface square footage assumes square corners; you may have to extrapolate in such cases. The finish square footage of the surface less deductions, and has the selected options of coats and other increases or decreases in finish quantity for it. It is actually the amount of calculated square feet for all of the conditions and determines the amount of gallons required.

Surface Material Design
Surface Width	Feet
Surface Length	Feet
Number Of Deductions
Anticipated Application Coverage
Application Shellac Coverage Square Feet	Per Gallon
Base Stain Coverage Square Feet	Per Gallon
Applications Method
Spray
Brush Or Roll
Number Of Applications
One
Two
Include No Base Stain Coat
Include 1 Base Stain Coat
Costs Involved
Application Shellac Cost	$ Per Gallon
Base Stain Cost	$ Per Gallon
Application Labor Hourly Cost	$ Per Hour
Application Labor Estimated Time	# Hours
Surface Material Details
Include Porous Material Surface
Include Rough Material Surface
Check Both Surface Boxes If Surface Is Dry And Rough

Calculated Results
Basic Surface Square Footage
Basic Surface Finish Square Footage
Square Footages Below Are Calculated By Typical Options For Application Coverage And Depict The NORMAL Square Footage That The Application Volume SHOULD Cover It Is NORMAL For Those Calculations To Reach 2 Times The Base Square Footage
Rounded Application Finish Square Footage
Rounded Base Finish Square Footage
Calculated Application Finish Square Footage
Calculated Base Finish Square Footage
Approximate Gallons Of Application Shellac To Purchase
Approximate Gallons Of Base Stain To Purchase
Calculated Gallons Of Application Shellac Required
Calculated Gallons Of Base Stain Required
Calculated Expense Of Application Shellac Required	$
Calculated Expense Of Base Stain Required	$
Calculated Expense Of All Surface Finish Required	$
Calculated Expense Of Labor Required	$
Calculated Total Expense Of This Surface	$

Updated 8.15.11

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