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    <title>topic Re: post hole depth in Outdoor</title>
    <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149339#M20136</link>
    <description>&lt;P&gt;Hi.&lt;/P&gt;&lt;P&gt;I came across this post for the preparation for the creation of a Bathhouse on a deck.&lt;/P&gt;&lt;P&gt;Does this rule apply for strirup posts as well?&amp;nbsp;&lt;/P&gt;&lt;P&gt;i.e The overall size of the deck is 2400 x 2100mm&lt;/P&gt;&lt;P&gt;I plan to use 3 bearers with metal strirup posts at end and one in the middle&lt;/P&gt;&lt;P&gt;thus 9 posts.&lt;/P&gt;&lt;P&gt;The drop across the ground is 300mm max at one end only (sloped ground)&lt;/P&gt;&lt;P&gt;Plan to use double joists under the bathtub, located on one side of the flooring&lt;/P&gt;&lt;P&gt;and 900mm x 2400mm toungue and groove flooring&lt;/P&gt;&lt;P&gt;So if i used the 600mm posts, that would put it 300mm in the ground at one end.&lt;/P&gt;&lt;P&gt;Appreciate any feedback.&lt;/P&gt;&lt;P&gt;Peter&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Overall Deck Slope.jpg" style="width: 800px;"&gt;&lt;img src="https://www.workshop.bunnings.com.au/t5/image/serverpage/image-id/67656iAD90F18E2E217BF6/image-size/large?v=v2&amp;amp;px=999" role="button" title="Overall Deck Slope.jpg" alt="Overall Deck Slope.jpg" /&gt;&lt;/span&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Overall Layout Deck.jpg" style="width: 553px;"&gt;&lt;img src="https://www.workshop.bunnings.com.au/t5/image/serverpage/image-id/67657iA9F3AA2148F91042/image-size/large?v=v2&amp;amp;px=999" role="button" title="Overall Layout Deck.jpg" alt="Overall Layout Deck.jpg" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Sun, 09 Apr 2023 06:02:52 GMT</pubDate>
    <dc:creator>Peter1960</dc:creator>
    <dc:date>2023-04-09T06:02:52Z</dc:date>
    <item>
      <title>What is the correct post hole depth for a deck?</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77195#M11320</link>
      <description>&lt;P&gt;i have an area of 2.4 x 4.4 at 300mm height above the ground to build a deck what is the minimum for post hole depth to be dug or the formula please&amp;nbsp;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 10 Apr 2023 03:38:53 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77195#M11320</guid>
      <dc:creator>eddy</dc:creator>
      <dc:date>2023-04-10T03:38:53Z</dc:date>
    </item>
    <item>
      <title>Re: Post hole depth for deck</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77199#M11321</link>
      <description>&lt;P&gt;General rule of thumb is 1/3 to 1/2 the length and the width to be 3X the post.&lt;/P&gt;&lt;P&gt;A lot depends on what your soil type is, I tend to go at least 300mm for post depth to be on the safe side.&lt;/P&gt;</description>
      <pubDate>Tue, 17 Aug 2021 22:41:35 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77199#M11321</guid>
      <dc:creator>Brad</dc:creator>
      <dc:date>2021-08-17T22:41:35Z</dc:date>
    </item>
    <item>
      <title>Re: post hole depth</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77220#M11324</link>
      <description>&lt;P&gt;Hello &lt;a href="https://www.workshop.bunnings.com.au/t5/user/viewprofilepage/user-id/27138"&gt;@eddy&lt;/a&gt;&lt;/P&gt;

&lt;P&gt;&amp;nbsp;&lt;/P&gt;

&lt;P&gt;Welcome to the Bunnings Workshop community. Thank you for joining us and sharing your question about post-hole depth for your deck.&lt;/P&gt;

&lt;P&gt;&amp;nbsp;&lt;/P&gt;

&lt;P&gt;It's great that you've received excellent advice from &lt;a href="https://www.workshop.bunnings.com.au/t5/user/viewprofilepage/user-id/1151"&gt;@Brad&lt;/a&gt;. I totally agree with his suggestion of at least 1/2 the length or more. I subscribe to over-engineering and would probably go past the 300mm as well for safety. Would it be possible for you to post a photo of your plan? It would give us an idea of the layout and provide you with a comprehensive recommendation. It sounds like a fantastic project, any updates you can provide while building the deck would be much appreciated.&lt;/P&gt;

&lt;P&gt;&amp;nbsp;&lt;/P&gt;

&lt;P&gt;If you need more advice or information, please let us know.&lt;/P&gt;

&lt;P&gt;&amp;nbsp;&lt;/P&gt;

&lt;P&gt;Eric&lt;/P&gt;

&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 18 Aug 2021 05:27:38 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/77220#M11324</guid>
      <dc:creator>EricL</dc:creator>
      <dc:date>2021-08-18T05:27:38Z</dc:date>
    </item>
    <item>
      <title>Re: post hole depth</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149339#M20136</link>
      <description>&lt;P&gt;Hi.&lt;/P&gt;&lt;P&gt;I came across this post for the preparation for the creation of a Bathhouse on a deck.&lt;/P&gt;&lt;P&gt;Does this rule apply for strirup posts as well?&amp;nbsp;&lt;/P&gt;&lt;P&gt;i.e The overall size of the deck is 2400 x 2100mm&lt;/P&gt;&lt;P&gt;I plan to use 3 bearers with metal strirup posts at end and one in the middle&lt;/P&gt;&lt;P&gt;thus 9 posts.&lt;/P&gt;&lt;P&gt;The drop across the ground is 300mm max at one end only (sloped ground)&lt;/P&gt;&lt;P&gt;Plan to use double joists under the bathtub, located on one side of the flooring&lt;/P&gt;&lt;P&gt;and 900mm x 2400mm toungue and groove flooring&lt;/P&gt;&lt;P&gt;So if i used the 600mm posts, that would put it 300mm in the ground at one end.&lt;/P&gt;&lt;P&gt;Appreciate any feedback.&lt;/P&gt;&lt;P&gt;Peter&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Overall Deck Slope.jpg" style="width: 800px;"&gt;&lt;img src="https://www.workshop.bunnings.com.au/t5/image/serverpage/image-id/67656iAD90F18E2E217BF6/image-size/large?v=v2&amp;amp;px=999" role="button" title="Overall Deck Slope.jpg" alt="Overall Deck Slope.jpg" /&gt;&lt;/span&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Overall Layout Deck.jpg" style="width: 553px;"&gt;&lt;img src="https://www.workshop.bunnings.com.au/t5/image/serverpage/image-id/67657iA9F3AA2148F91042/image-size/large?v=v2&amp;amp;px=999" role="button" title="Overall Layout Deck.jpg" alt="Overall Layout Deck.jpg" /&gt;&lt;/span&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Sun, 09 Apr 2023 06:02:52 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149339#M20136</guid>
      <dc:creator>Peter1960</dc:creator>
      <dc:date>2023-04-09T06:02:52Z</dc:date>
    </item>
    <item>
      <title>Re: post hole depth</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149427#M20142</link>
      <description>&lt;P&gt;Welcome to the Bunnings Workshop community &lt;SPAN style="background: var(--ck-color-mention-background); color: var(--ck-color-mention-text);"&gt;&lt;a href="https://www.workshop.bunnings.com.au/t5/user/viewprofilepage/user-id/42657"&gt;@Peter1960&lt;/a&gt;&lt;/SPAN&gt;. It's great to have you join us, and many thanks for your question about installing posts.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;That will work. 300mm in the ground for 600mm supports would typically be fine. However, the depth and size of the footer will be governed by the soil type in your area and the weight each post bears. In order to work that out, you'd likely need to get the structure engineered and reference soil analysis reports for the area.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Please let me know if you have any questions.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Mitchell&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 10 Apr 2023 00:37:57 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149427#M20142</guid>
      <dc:creator>MitchellMc</dc:creator>
      <dc:date>2023-04-10T00:37:57Z</dc:date>
    </item>
    <item>
      <title>Re: post hole depth</title>
      <link>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149434#M20144</link>
      <description>&lt;P&gt;Much appreciated Mitchell.&lt;/P&gt;&lt;P&gt;Shall do.&lt;/P&gt;&lt;P&gt;Thank you&lt;/P&gt;&lt;P&gt;Peter&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 10 Apr 2023 01:30:53 GMT</pubDate>
      <guid>https://www.workshop.bunnings.com.au/t5/Outdoor/What-is-the-correct-post-hole-depth-for-a-deck/m-p/149434#M20144</guid>
      <dc:creator>Peter1960</dc:creator>
      <dc:date>2023-04-10T01:30:53Z</dc:date>
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