Month of December Shed Plan Sale

All Shed Plans Will Be 50% off

Use the promo code 'santa50' at checkout

Easy Diy Shed Building Plans

Anchoring walls to concrete pad

by Danny
(Vernal, Ut)


Question:
What is the best way to anchor walls to a concrete pad?

Answer:

Hi Danny,

The best way to anchor walls to a concrete pad, if the pad already exists, is by using lag screws and anchors. The anchor locations are marked by first determining where they need to be on the bottom wall plate. Once you have these spots marked on the plate, holes can be drilled in the plate for later placement of the lag screws. Obviously you will only want your holes to be located where you are not going to be nailing wall studs.

Place the bottom plate on the pad where it needs to go, mark the locations on the pad, then move the plate aside. Drill the appropriate holes in the pads for the anchors, then place the anchors in the pad holes.

Next you build your wall, place 'sill paper' between the wall and pad, and screw down the lag screws through the holes in plate down into the anchors.

Typically you have to have an anchor within 8" of every corner and at least every 3' to 4' in between your corners.

As for the size of the lag screw, normally they are 1/2" diameter and 7 to 8" long.

Now, this whole process can change if you don't yet have your slab poured. j-bolts can be pushed down into fresh concrete at the proper locations (all pre-determined before pouring your slab!)
and after the concrete has set up, you place your bottom plate next to the bolts, mark locations for the holes to be drilled, then you can just set your wall down on top of these j-bolts, add washer and nuts.

Hope this answers your question Danny.

Click here to post comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Shed Wall Questions.

Share this page:
Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
How to build a shed with easy diy shed plans.
Pictures and testimonials from happy shed plan buyers.

Monthly DIY 
Shed-in-sight
Newsletter

Subscribing will get you discounts on shed plans, monthly updates, new shed design ideas, tips, exclusive discounts on shed building resources and tools.  Learn more here.

Recent Articles

  1. Best screws for hinges on heavy shed door

    Nov 29, 23 05:04 PM

    l1.25 inch construction screws exterior
    What are the best screws to use for fastening hinges on heavy shed doors? I need something that is rust resistant and long enough 2-3 to reach the studs.

    Read More

  2. Backyard Office Plans

    Nov 21, 23 03:17 PM

    12x16 backyard office plans for the diy shed builder
    backyard office plans

    Read More

  3. 12x16 Shed Plans

    Nov 17, 23 06:37 AM

    12x16 backyard office plans
    Awesome 12x16 shed plans you can use to build your neat shed with.

    Read More

My You Tube Videos

All my tube videos.