Gap between ground and joist on suspended timber floor.

Joined
10 May 2011
Messages
90
Reaction score
1
Location
West Midlands
Country
United Kingdom
On a suspended timber floor how much gap is required between ground and the underside of the joist. Is soil below allowable? or does a DPM need to be fitted.
 
Sponsored Links
You are looking at a minimum 6"gap.

You can't just leave the soil there. It needs some concrete (usually minimum 4" thick, or 2" if on a damp-proof membrane) to keep the dmp down.
Alternatively 2" of any inert, compacted material on a dpm, such as sand, gravel etc.
 
freddymercureystwin, kindly posted this definitive Blg Regs statement:

planningportal.gov.uk -page 27 of the pdf.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top