How to Frame a Basement
Turn it Into a Game Room, Home Theater, or Craft Shop
© 2008 by Kelly Smith All rights reserved; content may not be copied, rewritten, or republished without authors written permission. Authors Google profile
Your basement represents an opportunity to use all the square footage in your home and increase your
home equity by turning it into a game room, home theater, or craft shop. Begin by framing the walls.
First, ensure that your basement is fully waterproofed. You
must be sure that theres no water entering your basement through the floor or the walls.
Basement Waterproofing when Needed
If your basement needs waterproofing, check
Angies List where you will find thousands of unbiased ratings and reviews on service companies in your area. Join Angies List today.
that specialize in waterproofing
that will come to your house to make an examination with a moisture meter.
If you find you need moisture proofing, the technician should be able to offer that service or suggest
a basement waterproofing company in your region. When the whole basement gets the go-ahead, read on and
learn how to frame a basement wall.
If youve already got wood framing skills, the learning curve here will be pretty flat.
Some areas building code require you to pull a permit for this job.
Tools and Materials for This DIY Project
Quality tools are always important.
Tools definately fall into the you get what you pay for category.
- Framing hammer
- Pneumatic or airless nail gun
- Tape measure
- Chalk line
- Utility knife
- Chopsaw, radial arm saw, or table saw.
- Framing square
- 2 X 4 lumber
- 4 level
- Remington, Ramset or Hilti Powder actuated tool with powder loads and nails or cut (masonry) nails
- Nails for framing
- Safety glasses
Anatomy of Wood Framing
Youll frame your walls using 2 X 4 lumber or furring strips (for the exterior walls).
Be sure to select only the
straightest and truest
boards. Youll find there are three components to your wall bottom plate (its horizontal,
its on the floor, it contacts your concrete or cinder block basement wall), top plate (the
bottom plates complement, which is nailed to the bottom of your ceiling joists).
Finally theres your studs (theyre vertical, toenailed at the bottom plate and top plate).
Secure the Top and Bottom Plates
Note: Always consult your local structural building code with respect to basement wall framing. Some municipalities spell out how the top and bottom plates are attached. Some codes require that the walls be allowed to float.
There are two basic ways to frame a wall. The first is to build the wall on the ground,
stand it up, and plumb and brace it. This works well on a concrete slab or plywood subfloor,
but in a cramped basement its easier to build it in place.
Secure your bottom plate to the floor. Use either a powder actuated nail gun, driving nails via
a .22 cal blank or use a framing hammer with concrete nails (also called cut nails). The powder gun is
the best choice. Make sure you wear your safety glasses.
Now you can nail the top plate. There are two ways to accomplish this: hammer it up or use a nail
gun. Be sure to check your local building code; some municipalities require that the top plate floats.
A nail gun is the best choice because hammering in the upside down position will wear you out!
Use 2 nails on every ceiling joist. Youll need to cut your 2 X 4s to make
them break in the
middle of a joist.
Install the Wall Studs
Next, starting in any corner, stand a stud up to the concrete wall between your top plate and
your bottom plate. Toe-nail it to your top plate. Now do your bottom plate. Next, nail the next
stud to that stud, pressing the 2 side of your first stud against the 4 side of your second.
Now nail a third stud so that its 2 side is also touching the 4 side of the first stud
and its 4
side is contacting the 4 side of the second stud. The object here is to make sure the resulting
intersection of the studs matches the intersection formed by the bottom and top plates (90 degrees).
This is so your drywall will have corner nailing surfaces.
Layout and Fill in the Studs
Do the stud layout now. Starting with your tape measure on the floor in the corner, extend it
along the bottom plate and mark the plate every 16. This will be the center of the stud. Continue
around the basement.
It doesnt matter what you end up with in each opposing corner; what counts is that you start with
16. Go back to the corner you began at and cut the stud so that it fits snug but its not
nail it at the bottom, plumb it with a 4 level and toe nail it at the top.
Now you can hook your tape measure to that stud and mark the others on 16 (on both the bottom and
top plate) and the rest of the studs should also be plumb. Your tape measure has hash marks on 16
increments to make this job easy.
* Old Carpenters trick: when you make your mark, also draw an X to the left of your
mark if youre moving from right to left, and on the right if youre moving the other way. Why?
To remind you that the mark is the edge of the stud, not the center. Trust me on this.
Lay Out Your Electrical Outlets (Receptacles)
Do you already have electrical outlets everywhere you need them on the perimeter walls? Most
likely not if your basement is currently unfinished. Even if you have them they might need to
be relocated so they can be secured to the framing studs.
Unless you are very familiar with electrical work, it is highly recommended that you consult with
a licensed Journeyman Electrician. Your
local electrical building code probably requires this.
A reliable way to find one is to use
Building Your Interior Partitions
Interior basement walls are easier to build on the ground and stand up if they are very short.
Your work will be easier if you frame the walls that are perpendicular to the ceiling joists first
and then the ones that are parallel. This way you can brace the parallel ones to the perpendicular ones.
On longer walls, add 2 X 4 nailers between the joists.
If you frame a short wall laying down, measure the floor to ceiling at several spots so that you can
take the shortest height for the wall
and use spacing shims where you need to.
Before you stand it up, strike a chalk line on the floor
so you know where the wall goes. Use the 3-4-5 squaring method to ensure that you are perpendicular with the exterior walls where applicable.