1. ATTENTION returning members. If you are coming here from the old forum for the first time, you will need to reset you password. However, we had an email problem getting password reset links set out to a lot of the email addresses. That problem is temporarily rectified but IF you still have an issue, email me direct at info@thebuildingcodeforum.com and I will give you a temporary password.
    Dismiss Notice
  2. Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by clicking here: Upgrades
    Dismiss Notice

Patio Below Existing Grade

Discussion in 'Residential Foundation Codes' started by Apt318, Mar 5, 2017.

  1. Apt318

    Apt318 Registered User

    Joined:
    Mar 5, 2017
    Messages:
    1
    Likes Received:
    0
    I'm planning a patio under a new deck. To accomplish that we would need to drop current grade another 2 ft for clearance. Can this be done or does the foundation have to be certain depth below grade?
    [​IMG]
    [​IMG]
     
    #1 Apt318, Mar 5, 2017
    Last edited by a moderator: Mar 6, 2017
  2. fatboy

    fatboy Administrator

    Joined:
    Oct 17, 2009
    Messages:
    5,471
    Likes Received:
    407
    You need to check with the local Building Department to see what the required frost depth is in your jurisdiction. You may have to prove that the need grade elevation will not subject the existing footing depth to potential frost. A call or visit to them is in order.

    Welcome to our forum!
     
  3. cda

    cda Sawhorse

    Joined:
    Oct 19, 2009
    Messages:
    14,877
    Likes Received:
    866
    Welcome
     
  4. Paul Sweet

    Paul Sweet Sawhorse

    Joined:
    Oct 17, 2009
    Messages:
    976
    Likes Received:
    123
    You might have to underpin your existing footings if the patio butts up against the foundation, so the footings are the proper depth below the new lower grade.
     
    tmurray likes this.

Share This Page