Enter the length and height of the four walls of the enclosure being assessed. These measurements determine the total surface area of the walls. Press the CALCULATE button to add the total surface area to the results equation in Step 3.
Total Area is: 0
Add any sections of the four walls that are an enclosed surface area. You can choose what type of shape each enclosed section is, using the dropdown menu below, which will enable you to add the shape's measurements.
Once you have input the shape's measurements, press the ADD button to deduct that area from the total available surface area from Step 1. Once all enclosed sections have been added, you will be given the final open % area in Step 3.
Here are the results:
Total wall area is: 0
Total enclosed area is: 0
Total available area is: 0
Percentage available open area is: TBC %
A percentage of 50% or greater is required to comply with the Smoke-free (Premises and Enforcement) Regulations 2006.