24x24 garage question

[HammA5690]

I have a 24x24 concrete pad that a house previously sat on before I purchased the property. I have not yet checked if it has a 3 ft footing around the outer edges but IF it does I was wondering 2 things.

In New York can you :

- build a garage over an existing pad without permits because there is part of an existing building already in place?
- would I be able to bolt a sill plate or 4x4 supports to the concrete pad and expect it to hold up the building?

I would much rather bolt a sill board down and stick build it or bolt the 4x4 to concrete metal adapters ad pole barn build it than set footings for the poles around the perimeter of the pad. Any help would be great, Ill most likely be asking the town code enforcer the same questions soon.

Thanks in advance!

 

[twinjayhawks]

You are going to have to check with your local building codes to see what they would require... what inspections you will need to do.

If there was a house there before it should be fine to bolt the sill plate to the concrete structurally and support the garage. You would have to get the advice from a structural engineer to determine if the pad can support the pole barn posts though.

 

[sadexcuse4s10]

I would construct it like I would any new garage on a concrete slab.

Bolt a 2x4 or 2x6 pressure treated sill plate down with 1/2" x3 1/2" red heads, then frame that bad boy up. It's upto you if you order trusses or build your own roofing system with a main 2x6 span across the center and cut individual 2x6's to make up the rafters. I usually do it the old school way because trusses + a truck to deliver them runs pretty high usually.

 

[whitedogone]

I would construct it like I would any new garage on a concrete slab.

Bolt a 2x4 or 2x6 pressure treated sill plate down with 1/2" x3 1/2" red heads, then frame that bad boy up. It's upto you if you order trusses or build your own roofing system with a main 2x6 span across the center and cut individual 2x6's to make up the rafters. I usually do it the old school way because trusses + a truck to deliver them runs pretty high usually.

Wouldn't fly here......or maybe it would given the right wind :laughing:

Check with YOUR building dept.

 

[sadexcuse4s10]

Yeah, depends on what the local inspector thinks, along with codes.

The last house I built was on a brick foundation and had to have L bolts that went down 8". My mom's house is on slab and is simply nailed down with 3 1/2" ramset nails and bolted at every corner.

When i closed my carport in as a garage I ramsetted the sill down to the brick foundation on the side, but used redheads at the sill where the garage door is just in case someone hits the door opening with a car one day.





I'm clearing trees out myself now in hopes of building a 24x30 pole barn sometime next year with a gravel floor and roll up door.

 

[brewdog]

Where we live in NW PA, the code requires a permit only if the building is over 1000 sq.ft.

 

[Craig Clayton]

I would check in with the local building inspection department. They have a very nasty trump card when when somthing is built without a permit even if it is built perfect ( TEAR IT DOWN ) .
The only newer code change to a garage in ( Ontario ) on a slab is a 8 " high cement block wall to keep the bottom sill clear off the ground. I am not sure about L bolts into slab through the block to anchor the sill.

Craig Clayton

 

[Gizmo2]

I doubt it. I would start with two rows of block.

 

[Craig Clayton]

I had a follow up thought about dealing with the insurance company. I have spent several hours watching Judge Judy and looking at the law ( U.S. / Can. ).
If your unregistered garage ever burned to the ground because of a fire and I was them I would take you to court and claim that according to the State records there is only an empty slab on your property. And that they have no proof of your 20 - 40 th dollar claim.

Craig Clayton

 

[radioman]

Interesting thoughts. If you were replacing something with same size and shape, like a door, window etc no permit needed. Building a garage same size and shape as house but a different usage will most likely require a permit. I think if the garage is being built attached to house might require concrete blocks, but standalone might be ok stick built the way you want it, but a permit is still needed due to its a totally different structure. IF you have the original plans of the foundation and it would pass your town codes for "footings" for a garage then you may have saved yourself alot of money. I am going to say your chances of being able to reuse the concrete pad for a garage use are 50/50.

If worse comes to worse, you could dig new footing on the outside of the pad for the walls and underpin it to old pad to satisfy code inspector.