30x20 garage pricing???

[that-guy]

looking into costs for building my 30x20 detached garage in my backyard. i have all of the plans drawn up already on how i want this all to go down. i plan on purchasing and building everything i need on my own, minus the slab pour. so i was wondering if anybody could give me a rough estimate of what i am looking at cost wise???

30' deep, 20' wide, 9' walls, 15' to the peak of the roof. studs and trusses will be 20" on center, vinyl siding, shingle roof...i can probably figure would my costs in building materials based on my drawings, but the slab pour i have no idea

 

[jameswood]

Location?

 

[that-guy]

Eastern Virginia

 

[ddawg16]

My garage is pretty close in size...by the time I was done...I had about $30k into mine....and I did most of the work.

You can see pics in the link in my signature.

 

[jimkaniki]

ddawg16,

Great job on the two-story garage. Does your $30,000 estimate include demolition costs? Did you need to upgrade the electrical service?

I have a nice spot for a garage project, but will need to bring electricity to it.

 

[Kevin54]

looking into costs for building my 30x20 detached garage in my backyard. i have all of the plans drawn up already on how i want this all to go down. i plan on purchasing and building everything i need on my own, minus the slab pour. so i was wondering if anybody could give me a rough estimate of what i am looking at cost wise???

30' deep, 20' wide, 9' walls, 15' to the peak of the roof. studs and trusses will be 20" on center, vinyl siding, shingle roof...i can probably figure would my costs in building materials based on my drawings, but the slab pour i have no idea

For one go to www.carterlumber.com and they have a section where you can poke in the size of what you want and get an approximate price.

Secondly.....20" on center is a ******* size between both the studs and the trusses. You are only going to save maybe $50 at the most by screwing things up like that. Make the spacing the standard 16" for the studs, and if you are using premanufactured trusses with no storage, the trusses can be 24" on center which is standard.

Next, check on the price of trusses. Almost all lumber yards carry 24' trusses as the standard truss 4/12 pitch. Anything above or below that, a lot of times is "special order" which may end up costing you more in the longrun.

If you are only going to build the garage 20' wide, you may be better off building rafters instead of going with preman trusses. Something to look into.

 

[LB-1911]

looking into costs for building my 30x20 detached garage in my backyard. i have all of the plans drawn up already on how i want this all to go down. i plan on purchasing and building everything i need on my own, minus the slab pour. so i was wondering if anybody could give me a rough estimate of what i am looking at cost wise???

30' deep, 20' wide, 9' walls, 15' to the peak of the roof. studs and trusses will be 20" on center, vinyl siding, shingle roof...i can probably figure would my costs in building materials based on my drawings, but the slab pour i have no idea

Why not just do a take off list and check with a local lumber yard?

Do you need a permit?
Already have a site plan completed?

 

[DTE]

I am in NC and working on building a 26x30 ft building with 8 ft stud walls which will be set on a stem wall of an undecided height. It will have two 9x7 overhead doors and one walk in door. I have a material quote of $6132.70 for all the lumber from the stem wall up. 2x4 walls except the front where the doors will be that will be 2x8. T1-11 siding , 5/8 plywood for the roof. LDL beams for the 9ft. doors.Trusses 2ft. oc spanning 26ft with 1 ft. overhang. 25 yr shingles and several hundred ft. of 1x3 trim to give the siding a board and batten look. no doors or concrete. That price includes $400.00 for misc. fastners and $387.00 tax. The more I work on my plans the more I will probably end up building it out of 8in block. By the time I hire someone to help frame it I can put up block walls for a $1000.00 to $1500.00 more and then it is done.

 

[bczygan]

Price and bid it out.
Or get an estimator to do it for you for a fee.

 

[ddawg16]

ddawg16,

Great job on the two-story garage. Does your $30,000 estimate include demolition costs? Did you need to upgrade the electrical service?

I have a nice spot for a garage project, but will need to bring electricity to it.

That was everything....including demo....here is my breakdown...

Demo - $2500...and they hauled everything off....everything.
Foundation - $9000....this is where I got hosed....I know better now
Electrical....I already had a 200a service at the house...I just ran a conduit underground...I have 50a 240Vac in the garage...more than enough power.
Stucco was around $2k
Vinyl siding around $800 (I wouldn't do that again)
The rest is materials....etc....spiral staircase...skylight...flooring....etc. It all adds up.

 

[arrowhead]

I just finished a 20x30. Did all the work myself with the help of my son and his friend at times (The friend probably put in 3 fulls days 1- framing, 1- shingles, 1-siding). Floating slab was hired out for $4400 (would have cost me at least $3K to do myself), the bare building was $5700 from Lowes including tax (no finishes, elec, etc.). A large order like this the Pro desk will send into corporate for a discount, it was signfigant saving over the other quotes I got. I gave them a list to price, had bought plans from another lumber yard. VERY basic though, simple box, no windows, two garage doors, man door, vinyl siding, asphalt shingles, 2x4 16 oc and trusses 5/12 24 oc.

I did all the electical (100 A service 120' in conduit) with outlets and lights, insulation, osb sheathing for ceiling and walls, epoxy floor, though wall A/C. Again, I did all the work myself and my son helped with the heavy lifting. I figure I have under $14K into it total including other stuff like stone for the drive way area, etc. Haven't bought a heater yet though. The building was up in a month, but it took another month or so for all the fit out. All was done evening and weekends. It actually pretty easy, but just a lot of work.

Now the cleaning out of the other garage and moving/sorting out and throwing out will take all summer!

 

[that-guy]

I just finished a 20x30. Did all the work myself with the help of my son and his friend at times (The friend probably put in 3 fulls days 1- framing, 1- shingles, 1-siding). Floating slab was hired out for $4400 (would have cost me at least $3K to do myself), the bare building was $5700 from Lowes including tax (no finishes, elec, etc.). A large order like this the Pro desk will send into corporate for a discount, it was signfigant saving over the other quotes I got. I gave them a list to price, had bought plans from another lumber yard. VERY basic though, simple box, no windows, two garage doors, man door, vinyl siding, asphalt shingles, 2x4 16 oc and trusses 5/12 24 oc.

I did all the electical (100 A service 120' in conduit) with outlets and lights, insulation, osb sheathing for ceiling and walls, epoxy floor, though wall A/C. Again, I did all the work myself and my son helped with the heavy lifting. I figure I have under $14K into it total including other stuff like stone for the drive way area, etc. Haven't bought a heater yet though. The building was up in a month, but it took another month or so for all the fit out. All was done evening and weekends. It actually pretty easy, but just a lot of work.

Now the cleaning out of the other garage and moving/sorting out and throwing out will take all summer!

this was more what i was looking for arrowhead...thank you for that

i don't know why i had 20oc for my studs on there, meant to say 24 (fat fingers)...was thinking more along the lines of rafters instead of trusses since i plan on a lift, so i'm only make the building high enough to get vehicles up in the air to walk under (largest vehicle in the fleet is an 01 Chevy 2500)

 

[jimkaniki]

That was everything....including demo....here is my breakdown...

Demo - $2500...and they hauled everything off....everything.
Foundation - $9000....this is where I got hosed....I know better now
Electrical....I already had a 200a service at the house...I just ran a conduit underground...I have 50a 240Vac in the garage...more than enough power.
Stucco was around $2k
Vinyl siding around $800 (I wouldn't do that again)
The rest is materials....etc....spiral staircase...skylight...flooring....etc. It all adds up.

Thank you for the breakdown. Your foundation cost was more than I would have guessed.

 

[that-guy]

so i've begun building a 3d rendering of my proposed garage to figure in an exact amount of materials so i can prepare myself for more exacting costs...i built up a foundation wall using cinderblocks 2 layers high (16.75" using 3/8" spacing for morter) and came up with 160 blocks costing under $300 ($1.59 per block)...knowing now the price, and an idea in my head of time to lay the blocks, would this be cost effective to do, or have the forms made and have the walls poured with the slab?

better question would be, what would the difference in cost be between just pouring the slab, and pouring the slab with formed foundation walls being roughly 16" tall, and 6-8" wide???

 

[Kevin54]

so i've begun building a 3d rendering of my proposed garage to figure in an exact amount of materials so i can prepare myself for more exacting costs...i built up a foundation wall using cinderblocks 2 layers high (16.75" using 3/8" spacing for morter) and came up with 160 blocks costing under $300 ($1.59 per block)...knowing now the price, and an idea in my head of time to lay the blocks, would this be cost effective to do, or have the forms made and have the walls poured with the slab?

better question would be, what would the difference in cost be between just pouring the slab, and pouring the slab with formed foundation walls being roughly 16" tall, and 6-8" wide???

I can't help you as far as prices, and if you list your state in your profile, it may help you out as some others from the same area can chime in, but anyways.......to help you out with your block, don't figure in your mortar joints when you do your figuring. Just remember that when using standard blocks, they figure them at 8" wide, 8" tall, and 16" long, so three blocks long is four foot in length, and three blocks tall are two foot in height.

So a 24' long wall, single course, would take 18 blocks. And if you made the wall 2' tall ( 3 courses high), it would take 54 blocks total.

 

[Kevin54]

this was more what i was looking for arrowhead...thank you for that

i don't know why i had 20oc for my studs on there, meant to say 24 (fat fingers)...was thinking more along the lines of rafters instead of trusses since i plan on a lift, so i'm only make the building high enough to get vehicles up in the air to walk under (largest vehicle in the fleet is an 01 Chevy 2500)

You will be better off putting your studs at 16" on center and it is more common to have 16" on center. For example:

A 24' wall @ 16" on center = 18 studs,

A 24' wall @ 24" on center = 12 studs

So you are looking at only saving 6 studs/wall and maybe $15-$20/wall. but you would be sacrificing some strength and sturdiness. At 2' on center, you will only have (1) stud between each end of your panels verses having (2) studs between each of your panels. So for roughly $100 more, will will have a beefier garage.

Check this site and open up the Garden Shed on the left hand side, and you can fill in the blanks and figure out what you need and also the dimensions to cut your rafters to and collar ties to. http://www.deplans.com/plans/

 

[getbent4x4]

as a steel shop with just slab, probably 6-7k doing it yourself. steel from the steel yard.