Jump to content

Calculating Capacity / Width of exit doors


Recommended Posts

Please can we have some guidance on interpreting ADB - this is for a brand new village hall so we are using ADB Vol. 2 and specifically looking at tables 2.2 and 2.3.

We have established and agreed with the architect that the capacity based upon 1m/person density is 165.

So looking at table 2.2, we need at least 2 exit doorways.

What we are struggling with is the widths.  Reading Table 2.3, we need to deduct the largest doorway and use the remaining door width for the calculation.

Does the remaining door width after we have discounted the largest then need to be no less than 1050mm as we have more than 110 but less than 220??

Please can anyone explain what Note 3 means when it says "Widths less than 1050mm should not be interpolated"?? 

Are we correct in saying the 5mm rule / person does not apply for any door width less than 1050mm too?  

Thank you in advance for your help / guidance.

Link to comment
Share on other sites

  • 3 years later...
Guest Perkie

So does that mean if a door is 1550mm, its 220 people for the first 1050, then the extra 500mm is divided by 5mm equalling 100 more people?

or 1550mm divided by 5mm equalling 310 people?

Link to comment
Share on other sites

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...