# Quick Answer: Should Exterior Walls Be 2×4 Or 2×6?

## How thick is a 2×4 wall with drywall?

A two-by-four wall stud is 3 ½ inches wide, and an interior wall typically has ½-inch drywall installed on both sides, bringing the wall thickness to 4 ½ inches.

Walls that contain plumbing, such as walls behind sinks, however, should be thicker than standard walls..

## How thick should walls be in Autocad?

Just a couple examples: A typical block wall is 8 inches thick. A typical stud wall is 4 1/2 inches. But you could also have a “standard” block wall that’s 12 inches, and a “standard” stud wall that’s 6 1/2 inches.

## How thick are walls with plumbing?

about 6 inchesFor a normal plumbing wall, it should be about 6 inches in its breadth. For cast iron plumbing, the cast iron drain should be 4 5/8 inches in diameter. If the plumbing system uses plastic pipes, then a 4-inch wall will be sufficient.

## Can you build a 2 story house with 2×4?

Existing 2 x 4 walls do not preclude a second floor, but they must be looked at carefully (visually and by calculation) to assure that they will accept additional load. … Chances are some of your interior walls will need to carry some of that new second floor. Expect significant underfloor work installing new footings.

## What is the R-value of a 2×6?

6.88R-Value Table – English (US) UnitsMaterialR/ Inch hr·ft2·°F/BtuR/ Thickness hr·ft2·°F/BtuSoft Wood Lumber1.252″ nominal (1 1/2″)1.882×4 (3 1/2″)4.382×6 (5 1/2″)6.8861 more rows•Jul 16, 2019

## How thick is a 2×6 exterior wall?

When you add the exterior sheathing to the 2×6, you get just under 6 total inches as the sheathing is normally just a tad under 1/2-inch thick. Once the walls are finished, the thickness jumps to 4.5 inches for a 2×4 wall and just under 6.5 inches for a 2×6 wall.

## Should I use 2×4 or 2×6 for garage?

2 x 4’s are more than sufficient for a garage (most framed garages use 2 x 4’s), 2 x 6’s will give you a stronger building with the ability to achieve a higher insulation R value and a bigger bill for construction.

## How much weight can a 2×4 wall support?

30,000lbs.Depending on the length of wall, a 2×4 wall could support 20,000–30,000lbs. This wall would obviously contain a lot of studs, but that is still a ton of weight. With a typical cabinet, it would be far more likely that the cabinet breaks, than the wall collapsing from weight.

## How high can a 2×4 wall be?

2×4 Framing of Walls. In general, 2 x 4 wall framing is structurally sufficient for many small garages and sheds. When bearing wall heights do not exceed 10 ft. 2 x 4 framing is generally code compliant.

## Is my house 2×4 or 2×6 construction?

Open a door and measure the distance from the outside edge of the outside trim to the inside edge of the inside trim. This distance will be a little more than 8 inches if you have 2-by-6-inch framing and a little more than 6 inches if you have 2-by-4-inch framing.

## Can I put 2×6 insulation in a 2×4 wall?

Use R-19 or R-21 kraft-faced fiberglass insulation for two-by-six (2×6) walls. This combination ensures that the insulation is neither too loose nor too tightly packed within the walls. Two-by-four (2×4) stud walls with true 4-inch depth.

## How thick is an exterior brick wall?

230mmFor brick walls, a common thickness is 230mm(9″), and for concrete block walls, common thicknesses are 200mm(8″), 150mm(6″) and 100mm(4″).

## Can a 2×4 wall be load bearing?

If it’s an exterior wall it’s almost always load bearing. If the joists are not continuous over the wall (they are cut short and meet on top of the wall) it is definitely load bearing. … If there are only cripple studs on a flat 2×4 to give you something to attach the drywall, it likely isn’t load bearing.

## How many 2×4 Do I need to build a house?

The amount of 2×4 lumber pieces required to build a home varies according to the size of the house, but it is generally recommended that there should be one 2×4 calculated per foot. Building code requires one every 16 inches.

## Can exterior walls be 2×4?

Modern conventional home building normally makes use of 2×4 lumber (top line above, second from left) in constructing exterior walls. But 2×6 framing, which is a little more than 1.5 times wider, is a common upgrade and is required by some local building codes.

## How thick should exterior walls be?

It is common that industrial buildings will use concrete exterior walls with only paint as a finish. If they are cast in place vertically they may be 10 to 12″ thick. If they are cast horizontally and tilted into place, they will be 6 to 8 inches thick. Adobe walls can be 2 to 3 feet thick.

## Is 2×6 framing stronger than 2×4?

2×6 walls are bigger than 2×4 walls. They’re harder to lift and the headers on exterior walls require more work. Great builders add 2.5 inches of closed-cell foam to the headers over windows and doors to help cut down on energy bills.

## How far apart are 2×6 studs?

24-inchesResearch has shown exterior framed walls can be adequately supported by 2×6 studs spaced 24-inches on-center.

## What is the standard wall thickness?

4.5 inchesThe typical interior wall thickness in newer construction using 2-by-4 studs and half-inch drywall is 4.5 inches. 2-by-6 studs are typically used in walls that contain plumbing, making those walls 6.5 inches.

## How do you increase the R-value of a 2×4 wall?

In order to achieve the higher insulation R-value of R-21 a different type of insulation will be required.Rigid Foam Insulation. … Open Cell Foam-in-Place Insulation. … Closed Cell Foam-in-Place Insulation. … Considerations.