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Question DetailsAsked on 6/17/2013

How much to build a wall in a three car garage

I have a three car garage, with three individal garage doors and would like to wall one off for storage. So I was looking to find out how much it usually costs to build a wall (with insultation).

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1 Answer


Why insulated - presumably heated both sides, so no need for insulation unless you are planning on starting a noisy garage band.

Be careful of ventilation - provide enough air flow so you don't get mildew or freezing in the storage side, and also be sure you have smoke alarms on both sides of the barrier. Don't let the storage side block off heat entirely, as frozen storage space - frozen pipes in overhead flooring.

Be careful of door opening clearances - 3 car garages leave about 2-3 feet between adjacent cars for door opening, so if you put in a stud wall that becomes about 8-15 inches - not enough to easily get out on one side of each car. That is why 3 car garages, unless designed to have a wall, almost never have an intermediate wall.

A simple stud wall will probably cost you about $7-12/SF built, drywalled both sides, painted. Of course, leaving one side undrywalled makes it easy to put in small shelves, bins, etc.

If you are basically just looking for dust control rather than a security barrier, then maybe the classic blue o green or brown tarp would do the job - a 24 x 12 foot one costs about $20 for a classic Walmart type plastic one, to $150 for heavy canvas. If you did not stack stuff too close to it where doors open, that would allow you some "push" room to get out of the car - could build a light wood frame to hold it up, or fasten to ceiling with 2x2 strips screwed into the ceiling joists.

One advantage of the tarp is when you move, a buyer might not like the wall and associated narrow car clearances.

Answered 6 years ago by LCD

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