How to Frame a Wall in 10 Simple Steps

• Using a chalk line, indicate where you want to place the wall with markings on the floor.

• Then, use a stud finder on the ceiling to determine where the joists (support beams in floors and ceilings) are. 

• For proper wall alignment, the joists should be directly above the wall, running perpendicular to it. If the joists are parallel to the wall, you’ll need to adjust the layout so that the wall is under a joist.

In order to frame the wall, you’ll need to establish where the top and sole plates will go, as they are the anchors for the wall studs. 

• Using a tape measure, mark where the new wall will meet the existing wall by measuring from a corner of the room. 

• From the opposite corner, measure out where the end of the new wall will be.  

• Put a chalk line in between the marks you just made. This will indicate one edge of the top plate. 

• Measure diagonally between both corners to ensure that the measurements are the same and that the new wall is square. This may take some trial and error, and adjustments might need to be made.

• To begin laying down the sole plate, hammer a nail into the ceiling near one end of the chalk line, and hang a plumb bob (a weight with a pointed tip at the bottom) from it. 

• Mark the floor where the plumb bob points to. 

• Repeat this process at the opposite end of the ceiling chalk line.

• Snap a chalk line in between the two new marks to place one edge of the sole plate on.

• Put an “X” on the edge of the line where the plate will lay.

• Place your top and sole plates on the floor beside one another, and starting at one end, measure out and mark each plate every 16-24 inches, according to local code.

• Using a combination square, draw lines connecting the marks across the plate.

• Mark an “X” at the end of each plate and to the right of the lines drawn on each plate to distinguish where the stud locations are.

• Note: If this is a wall that will need a door, you'll need to know how to frame a door. Be sure to account for the door frame with the following: two king studs, two tripper studs, and a horizontal header

• Use your tape measure to determine the distance from the floor to ceiling in multiple places, as it’s not uncommon for the height range to differ throughout the room.

• You’ll need to determine where the shortest height distance is, then also take into account the space needed for the top and sole plates. With that in mind, subtract 3 3/4 inches from the shortest ceiling to floor measurement you found. This additional 3 3/4 inch worth of space will also allow for the clearance needed to tilt the new wall into place. 

• Now that you have the measurements needed, you can begin cutting the studs.

• Wearing your safety glasses, use a circular saw to cut the studs to length.

• Lay the sole plate and the first stud on edge, and nail them together using 16d nails.

• Lay out all the 2x4s on edge, with two top plates on top and the sole plate on the bottom. 

• Sight down all the (vertical) studs to determine the crown or bowed direction of the wood. 

• If a stud has a crown that differs from the other studs, discard it and don’t incorporate it into the project.

Note: If any of the studs are warped, have the crown (the bowed part of the wood) face up. This will provide more support and will allow you to nail the ends of the wood without the stud rocking.

• Using 16d nails, nail the studs into the sole plate one at a time. Once you’ve completed that, lay the top plate on edge and nail it to the studs where indicated by the markings you made earlier. 

• If you’re nailing the secondary top plate into place at this time, do so by driving the nails into it vertically above every stud location. 

• Make sure the 2x4s between the studs have been cut to fit, ensure they are positioned properly, then nail them into place.

Depending on the size of the wall frame, you may need someone to assist with this step of the project. 

• Once the wall frame has been secured by nails, align the sole plate with the chalk line on the floor. 

• Carefully tilt the frame into place and be sure to align the top plate with the chalk line on the ceiling.

• Fasten the wall into place.

• Beginning at one end of the wall, shim between the top plate and ceiling.

• Check the wall for plumb using a level. Repeat this process and continue to shim and plumb each section of the wall, driving 16d nails through the top plate and into the framing as you go.

• Nail the 16d nails through the sole plate and into the floor, thus fastening it into place. 

• Nail the end studs into the frame of the existing wall.

• Score all shims with a utility knife, snapping them off flush with the plate.