Siding Calculators
- Siding for a Rectangular Wall: Computes the siding materials for a rectangular wall (squared corners) for horizontal panels or boards based on the dimensions of the wall and the panels or boards.
- Siding for a Gable End Wall: Computes the siding materials (horizontal panels or boards) for a wall under a gable roof end, based on the dimensions of the wall and the panels or boards.
- Siding for a Gable End Wall with Large Door or Opening: Computes the siding materials (horizontal panels or boards) for a wall under a gable roof end with a large opening (e.g., garage door) based on the dimensions of the wall and the panels or boards.
- Horizontal Siding Gambrel Wall: Computes the number of horizontal rows of siding material, the total surface area and total board feet.
- Metal Sidings Gable Ends: Computes the number of vertical panels for a wall under a gable roofline. It also returns the total area of gable end wall, number of screws needed and the cut angle of the panels.
- Metal Siding for Gable End with Door: Computes the number of vertical panels for a wall with a large door (e.g., garage door) under a gable roofline. It also returns the total area of gable end wall, number of screws needed and the cut angle of the panels.
- Metal Siding for Wall: Computes the number of vertical panels and other metal siding materials for a rectangular wall based on the dimensions.
- Metal Siding Gambrel Wall: Computes the number and length of vertical metal panels for a wall under a gambrel roofline. It also includes the area of the wall and the number of metal panel screws needed for the vertical panels.
- Metal for Shed (Roof and Walls): Computes the number of vertical metal panels for the roof and walls of a three-sided shed (run-in).
- Corrugated Metal Paint or Coating Volume: This estimates the volume of paint or other coating (e.g., spray insulation) is needed for a corrugated surface.
The Siding Calculator has functions and data to help calculate the amount of materials needed for putting siding on a house or other building. The siding functions in the calculator are for siding that is installed horizontally (left to right). Vertical siding, such as metal ag panel requires slightly different math and for that reason are represented in different calculator functions.
Siding Information
Siding is the final hard material placed on the exterior of a building (house, garage, shed, building). Siding comes in several forms, and most siding, such as vinyl or cedar, is installed horizontally with uniform length panels or boards. Metal panel, on the other hand, can be manufactured to different custom lengths which makes for less labor during installation and fewer seams that can cause leaks.
The graphics show a horizontal panel (e.g. vinyl, cedar boards) in tan color and a vertical metal panel (e.g. ag panel) in blue.
The most common dimensions for siding are as follows:
- Vinyl Sizes
- (8" x 12'6") This is for Double 4" siding and covers 8.33 ft2 per board.
- (9" x 12'1") This is for Double 4 1/2" x 12'1" Dutch Lap
- (10" x 12') This is for Double 5" x12 Dutch Lap
- (7" x 12'4") Single panel siding
- (7" x 73.5") Imitation Cedar
- (7" x 4') Straight Edge Shingle Siding
- (14" x 4') This is for Double 7" x 4' and covers 4.54 ft2 per board.
- Prefinished Siding
- Wood Siding
- Cedar boards
- Width: 5 1/2" wide with 4 1/2" coverage
- Length: 4', 6' , 8' , 10' , 12' , 14' , 16'
- Cedar boards
- Width: 7 1/4" wide with 6 1/4" coverage
- Lengths: 6' , 8' , 10' , 12' , 14' , 16'
- Cedar boards
- Width: 9 1/4" wide with 8 1/4" coverage
- Length: 6' , 8' , 10' , 12' , 14' , 16'
- Cedar Tongue and Groove
- Width: 6" wide with 5 3/8" coverage
- Length: 4', 6' , 8' , 10' , 12' , 14' , 16'
- Log Siding
- Width: 7" wide with 6 1/2" coverage
- Length: 8' , 12' , 16'
- Cedar boards
- Metal Siding
- Corrugated Panels (e.g., ag panels, C-Lok, G-Rib) have custom lengths but have a uniform 36" coverage width.
- Standing Seam Panels have custom lengths but a uniform 15" coverage width. Standing seam is more common on roofs than as siding.
Under Gable Roof
The most common shaped house or building is a the simple gabled roof building as seen below. The roof is supported with trusses or rafters to provide a slope for rain or melting snow to run off. These buildings have two rectangular sides (L) and two gabled ends. To compute the amount of siding for a building with a gable above, one needs to compute the siding for the two rectangle side walls, and the siding for the two gable ends.
Under Gambrel Roof
Siding under a gambrel roof can run either a vertical or horizontal direction. Most materials (e.g., vinyl or cedar boards) run horizontally. However, metal panels are typically run vertically. The length of metal panels are often custom lengths. Where horizontal panels typically come via bulk amount with standard lengths (see above).
