The Paint for Corrugated Surfaces calculator computes the amount of paint needed for a corrugated surface.
INSTRUCTIONS: Choose units and enter the following:
- (L) Length
- (W) Width
- (cF) Corrugation Factor
- (nC) Number of Coats
- (CVG) Coverage per Gallons (see manufacturer recommendation)
Paint for Corrugated Surfaces (GP): The calculator returns the following:
- (GP) Gallons of Paint
- (SA) Apparent Surface Area
- (cSA) Corrugated Surface Area. This takes into account the corrugation.
The above can be automatically converted into compatible units via the pull-down menu.
The Math / Science
The calculator assumes that the face of the surface is rectangular with corrugation in one direction, along the width:
SA = L * W * CF
where:
- (SA) Apparent Surface Area
- (L) Length of Area
- (W) Width of Area
- (CF) Corrugation Factor
With the Surface Area (SA), calculation of the gallons of paint is division by the area coverage.
Area Coverage
Most indoor paints cover 400 ft2 per gallon, and most exterior paint cover 300 ft2 per gallon. You can use whatever value for CVG you wish and override the default (300 ft2) for exterior paint, but it is recommended that one use the manufacturer's recommended coverage area.
Corrugation Factor
Surface area is a simple length times width calculation, but what if one of the dimensions is not smooth? This is found in corrugated material. To account for this, this calculator has a corrugation factor that is applied to the length and width dimensions to account for corrugation.
Straight (Squared) Corrugation Profile
Curved Corrugation Profile:
Corrugation refers to the process of shaping a material into a series of parallel ridges and grooves. This is commonly seen in corrugated materials, such as cardboard or metal sheets. The purpose of corrugation is often to add strength and rigidity to the material while maintaining flexibility. In the case of corrugated cardboard, for example, the corrugated structure provides strength and helps the material withstand pressure and impacts. Corrugated metal sheets are used in roofing and packaging for similar reasons.
To calculate the Corrugation Factor, do the following:
- Measure the linear Width (W in the diagram above), for any length of the corrugation.
- Use a string, and lay it on top of the same length, letting is fall into all the recesses as much as possible.
- Mark the end of the string to match the end of the Width.
- Pull the string straight and measure how much longer it is than the Width.
The formula for the Corrugation Factor is:
CF = SL / W
where:
- CF = Corrugation Factor
- SL = String Length
- W = Width of Corrugated Segment
Corrugation
Corrugation refers to the process of shaping a material into a series of parallel ridges and grooves. This is commonly seen in corrugated materials, such as cardboard or metal sheets. The purpose of corrugation is often to add strength and rigidity to the material while maintaining flexibility. In the case of corrugated cardboard, for example, the corrugated structure provides strength and helps the material withstand pressure and impacts. Corrugated metal sheets are used in roofing and packaging for similar reasons.
Corrugation Factor (CF) that can by applied to a dimension (e.g., width) in order to make an accurate surface area of a corrugated surface calculation.
Corrugation can have a smooth (curved) or straight segment pattern with squared ends in its profile.
Paint Calculators
- Paint for a Room: Computes the number of gallons of paint or primer
needed to paint an entire room, the four walls and ceiling and also for just the walls. - Room Paint Cost: Estimates the cost of paint or primer needed to cover a rectangular room (blue in diagram) based on the length, width and height of the room.
- Paint for a Wall: Computes the number of gallons of paint or primer needed to paint a wall or any rectangular area (wall or ceiling).
- Cost to Paint a Wall: Estimates the cost of paint or primer needed to cover a wall or other area defined by a length and a height or width.
- Ceiling Paint Cost: Estimates the cost of paint or primer needed to cover a ceiling of a rectangular room based on the length and width of the room.
- Exterior Paint for a House: Computes the number of gallons of exterior paint for a gabled building like a common house based on the dimensions, number of large and small windows, number of doors and the number of coats of paint
- Wood Stain Calculator: Computes the amount of wood stain to finish wood surfaces based on a length, width and the stain product coverage defined by a container size and coverage per container.
- Deck Stain and Sealer: Computes the number of quarts of stain and sealer needed for a deck based on the size and whether rough or smooth.
- Paint for Pipes: Computes the amount of paint needed to cover the exterior surface area of one or more pipes based on the pipe diameter, length, number of coats, number of pipes and the recommended area coverage of the paint.
- Paint for Corrugated Surfaces: Computes the amount of paint needed for a corrugated surface based on the dimensions of the corrugated surface area (length and width), a corrugation factor, coverage per gallon of paint used and the number of coats of paint.
- Paint Pricing Survey: Dataset containing a history of periodic pricing for paint products including primer and three price points (economy, medium and premium) paint. Data comes from nationally advertised prices on the website of national retailers.