Exterior Specialty Products

The information and forms below can be used to determine the amount of Drain-Plane you need for your project and to place your order.

The Exterior Calculation section provides information and a worksheet to help you calculate the total square foot area of your exterior.
Then use the Product Calculator to determine the quantity of Drain-Plane product you need to order.
Click on the “Proceed to Order” to continue to the next step in the order process.

Front Wall		Multiply the width by height (C x D on diagram).

Side Wall		Multiply the width by height (E x F on diagram).

Garage		Multiply the width by height (A x B on diagram).

Gable		Multiply the width by height (G x H on diagram) and divide by 2.

Dormer		Multiply the width by height (I x J on diagram) Multiply the width by height (I x K on diagram) and then divide by 2. Add the numbers together.

To determine total square footage needed use the directions above to calculate the area of each part of the house on which Drain-Plane is to be installed. Add the square footage for all parts together for the total.

Click for Larger Diagram

Total Sq Ft.
Size		6mm 10mm
Full Boxes Needed
Half Boxes Needed
Additional Full Boxes
Additional Half Boxes

Total Full Boxes
Total Half Boxes
Total Amount

Enter the total square foot area of your exterior as calculated above.
Select the appropriate product size.
6mm (1/4”) is standard
10mm meets Canadian code
The required quantity of full and half boxes needed are calculated and displayed:
6mm = 10 squares/box
10mm = 5 squares/box
You can order additional full or half boxes by entering the number of each in the space provided.

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