Shed Leveling - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Like Tree1Likes
  • 1 Post By 195795
Thread Tools
Display Modes
Old 01-14-2019, 12:43 PM   #1
Join Date: Jul 2009
Location: Sacramento CA
Posts: 259
Rewards Points: 254

Shed Leveling

I'd like to build a free-standing small 4x8 foot lean-to garden shed in my back yard up against my house. I have an existing concrete slab I'd like to set it on. The problem is the slab is graded slightly for drainage- maybe a half inch along the 4' span.

What's the best way to level the shed? The floor will be framed with 2x4 PT 16" on center. It needs to be a stand-alone free-standing shed, so building off the house is not an option.

Should I just use shims? Set it on a couple PT skids and cut the skids to the slope of the grade?
mopowers is offline   Reply With Quote
Sponsored Links
Old 01-14-2019, 02:27 PM   #2
Join Date: May 2013
Location: Houston, Texas
Posts: 636
Rewards Points: 1,272

Re: Shed Leveling

Just build it flat and set it on the slab - 1/2" slope over 4' ain't gonna matter
COLDIRON likes this.
195795 is offline   Reply With Quote
Sponsored Links
Old 01-14-2019, 04:02 PM   #3
Join Date: Nov 2018
Location: Desert Hot Springs, CA
Posts: 573
Rewards Points: 1,138

Re: Shed Leveling

2X4 will bounce if you shim one end.

So, if you require a level floor, you'll have to shim every 12 - 16" inches if you want to eliminate bounce.

The far easier way would be to use 2X6 and rip them so the the floor joist go along the 8' length.

First joist near the house is 4" and the last one at the front of the shed would be 4-1/2" to get the level you want - the other two split the difference at about 4-5/32 and 4-5/16. (Yes gang, decimals work better than going to 64th's for framing...)
Attached Images

Last edited by Domo; 01-14-2019 at 04:05 PM.
Domo is offline   Reply With Quote
Sponsored Links
Old 01-15-2019, 09:11 AM   #4
retired framer
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 28,910
Rewards Points: 1,476

Re: Shed Leveling

Build the front and back wall, do the rafters then build the side walls in place to fit, no problem
Nealtw is online now   Reply With Quote
Old 01-15-2019, 04:54 PM   #5
Join Date: Mar 2010
Posts: 2,773
Rewards Points: 2,072

Re: Shed Leveling

As mentioned just build it on slab, don't worry about it. Most porches, decks and slabs should be off level due to drainage anyway. The snow will melt off easy and if you leave the doors open by accident and a big rainstorm comes up
(it happens) it will drain out the door and not migrate towards the house. I build the off level all the time at least a bubble. Make sure you use pressure treated lumber for the lower plates bolted down good.
No Warranty Means- If it breaks in half you get to keep both halves.
COLDIRON is offline   Reply With Quote
Sponsored Links

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Moving an 8x10 wooden shed 100 miles; how? (Video of shed inside) snowfall General DIY Discussions 36 03-14-2017 02:39 PM
[Canada Code] Sharing 240V and 120V appliance on same circuit in workshop shed? mdrejhon Electrical 37 11-13-2016 08:53 PM
Leveling a shed on a concrete slab jcorno Building & Construction 5 09-02-2013 07:02 PM
Leveling skids for a shed on a unlevel concrete foundation will02 Building & Construction 7 01-16-2012 03:58 PM
Leveling site for pre-fab shed MCS Building & Construction 1 06-18-2009 01:12 PM

Top of Page | View New Posts