Question For Builders In Massachusetts - Building & Construction - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 03-11-2010, 05:36 PM   #1
Join Date: Nov 2009
Posts: 28
Rewards Points: 25

question for builders in massachusetts

I am planning on building a shed in the next couple months and after back and forth emails with my local building inspector he said for the sized shed I want with a concrete slab floor that 10" sono-tubes would be an acceptable footing for the slab.

My question is how do I pour a slab on top of sono-tubes? From what I can figure, I would dig and fill the sono-tubes to exactly level across all tubes excavate 2 feet of dirt from the middle and fill with 2 foot of 3/8" gravel, build a box around the tubes to pour the slab?

Does this sound plausible?


naehring2000 is offline   Reply With Quote
Old 03-11-2010, 06:17 PM   #2
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Rewards Points: 2,000

Is this going to be heated ?
Attached to the house in some way ?

My pool cabana doesn't have anything under the slab
I added on 10x10' to the cabana & just put in a ~12" deep foundation to build the walls on


Scuba_Dave is offline   Reply With Quote
Old 03-11-2010, 06:50 PM   #3
Join Date: Nov 2009
Posts: 28
Rewards Points: 25

nope, free standing structure, i will have a wood stove in there for heat, the inspector up here said anything over 192 sq ft needs footings below the frost line
naehring2000 is offline   Reply With Quote
Old 03-12-2010, 08:12 AM   #4
Master General ReEngineer
Bondo's Avatar
Join Date: Dec 2007
Location: Chaumont River, Ny.
Posts: 6,665
Rewards Points: 1,736

Ayuh,... A floating slab, with parimeter footings would work around here,...
But anyways,...
Excavate the area of the slab, Dig out,+ install the sonotubes where ya want 'em,+ then pour the Whole thing at once...
Bondo is offline   Reply With Quote
The Following User Says Thank You to Bondo For This Useful Post:
Tom Struble (03-14-2010)
Old 03-14-2010, 07:17 PM   #5
Join Date: Mar 2010
Posts: 5
Rewards Points: 10

My experience with Massachusetts and sheds and building inspectors is that your inspector is assuming that you will have a wood floor on your shed. The floor is attached to framing which is attached to posts that are attached to the sonotubes.

In Massachusetts, small slabs can be "heaved" by winter frost. This might be particularly bad if your stove pipe disconnects because your floor slab moves and your sonotube supported structure does not.

Consider a meeting, in person, with your inspector. Since you need a building permit from the inspector, he'll list many of his requirements.

Sometimes your local (not big box) lumber yard will give you detailed guidance, advice on working with the local inspector, maybe plans, and even a "lumber package" quote. Ask who might be available for this help and when they could help you. You'll get the best advice when the staff is the least busy.

Good luck!!
Semi - pro is offline   Reply With Quote

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
Basement Renovation Question KUIPORNG Remodeling 234 08-26-2008 08:19 AM
hrv question indep HVAC 3 07-17-2008 10:39 PM
Basement vapor barrier question rob7young Remodeling 2 04-13-2008 09:10 AM
New service Question Onytay Electrical 1 10-24-2007 05:47 AM
One furnace question and one thermostat question lh0628 HVAC 4 10-11-2007 10:17 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1