Interior wall
Walls & framing

Build an interior wall

DIY OK
Frame a non-load-bearing partition, hang drywall, tape and mud.
Sheet A-1 · Interior wall

10′ wall, 8′ tall, 1 door

DIY OK
Studs
13
2×4 × 8′
Plates
2
2×4 × 10′
Drywall
5
4×8 sheets
Mud
1
pail
12–18 h of work
Spread over 3–4 days: mud dries overnight between coats.
Draft
The rules behind this Sheet are waiting for a licensed pro’s sign-off.

Drawing

Framing elevation
1
Top plate Single 2×4 fastened to the ceiling joists.
2
Stud Vertical framing, 16″ on center, cut to fit.
3
King stud Full-height stud beside the opening.
4
Jack stud Also called a trimmer. Holds up the header.
5
Header A flat 2× — allowed because the top plate is within 24″ above it.
6
Cripple Short stud between header and top plate.
7
Bottom plate Screwed to the subfloor. Dashed part is cut out in the doorway.
Red squares on the dimension line = stud layout marks, like the red boxes on a tape measure.

What to buy

10 items · 2 if needed
Save to your jobs to check things off in the store.
Lumber
Studs
2×4 × 8′
13 studs
Framing lumber, actually 1½″ × 3½″.
Bottom plate
2×4 × 10′
1 board
Framing lumber, actually 1½″ × 3½″.
Top plate
2×4 × 10′
1 board
Framing lumber, actually 1½″ × 3½″.
Fasteners
3″ framing screws
#9 or #10, exterior-rated
≈87 screws (1 box of 100)
Construction screws for framing by hand. (16d nails if you use a nailer.)
Drywall screws, coarse thread
1¼″ coarse thread
≈154 screws (1 lb box)
Coarse thread bites wood studs.
Hardware
Heavy-duty wall anchors
If needed
rated for 50+ lb
6 anchors
Keep the receipt — return it if you don’t use it.
Hold the end stud where the old wall has no stud behind it.
Drywall
Drywall
Drywall ½″ · 4×8 sheets
5 sheets
Standard gypsum board for walls.
All-purpose joint compound
4.5-gal pail (≈62 lb)
1 pail
Premixed “mud” for taping and finish coats.
Paper joint tape
250 ft roll
1 roll
Bedded in mud over seams and inside corners.
Supplies
Construction adhesive
If needed
10 oz tube
1 tube
Keep the receipt — return it if you don’t use it.
Glue bead under plates; stops squeaks and creep.

Tools

You own 0 of 22 must-haves
Tap the ones you already own. That builds your Tool Shed as you go — no setup.

Must have

The job stalls without it.

Rent it

Costly to buy for one job. Rent it for a day.

Nice to have

Faster or cleaner, not required.

Order of work

12–18 h of work
01
Find the ceiling joists with a stud finder and decide how the top plate gets fastened.
Check first
Which way do the joists run? If they run along the wall, plan blocking before you buy — screws into drywall alone won’t hold the top plate.
02
Snap the wall line on the floor. Transfer it to the ceiling with a plumb bob or laser at both ends.
03
Cut the plates, lay them side by side and mark the stud layout every 16″ plus the door rough opening (34″ × 82-1/2″).
Check first
Mark the door rough openings on both plates, and leave the bottom plate in one piece until the wall is fastened.
04
Fasten the top plate to the joists and the bottom plate to the floor.
05
Measure each stud position floor-to-ceiling (they vary), cut, and screw or toe-nail it in.
Check first
Measure at every stud — floors and ceilings aren’t flat, so don’t cut them all to one length.
06
Frame each door: king studs, jack studs, a header (flat 2×4), cripples. Then cut the bottom plate out of the doorway.
Check first
Wall fastened top and bottom before you cut the bottom plate out of the doorway.
07
Check the wall for plumb every few studs before drywall.
08
Hang drywall horizontally, ½″ off the floor, joints staggered; screws 16″ apart into studs.
Check first
Mark the stud centers on the floor and ceiling so you can find them through the sheet.
09
Tape and mud: bedding coat, fill coat, finish coat — overnight between each. Sand lightly, then prime.
Wait 12–24 h — bedding coat dries
Premixed compound: overnight between coats (12–24 h; longer when it’s cool or humid). Setting-type compound (20, 45 or 90-minute) lets you do the coats the same day.
Wait 12–24 h — fill coat dries
Premixed compound: overnight between coats (12–24 h; longer when it’s cool or humid). Setting-type compound (20, 45 or 90-minute) lets you do the coats the same day.
Wait 12–24 h — finish coat dries before sanding
Premixed compound: overnight between coats (12–24 h; longer when it’s cool or humid). Setting-type compound (20, 45 or 90-minute) lets you do the coats the same day.

Mistakes that ruin the job

3 mistakes
1
Top plate with nothing to grab
If the ceiling joists run along the wall, screws go into drywall only and the wall wobbles. Find the joists first; add blocking.
2
Cutting every stud to one length
Floors and ceilings are never flat. Measure at each stud location and cut to fit — a stud ⅛″ long bows the ceiling.
3
Cutting the doorway plate too early
Leave the bottom plate continuous until the wall is fastened, or the opening racks out of square.

Plan it

The load

To haul
470 lb
from the store to the room
Helpers
0
a solo job
Heaviest
Drywall ½″ · 5 sheets · 260 lb
2×4 · 15 pcs · 140 lb
All-purpose joint compound · 1 pail · 62 lb
Rent: Framing nailer + compressor

When you’ll finish

Pick when you can start and how many hours you have.
Hours you can work
Each weekday evening
0
h
Each weekend day
8
h
Saved for every Sheet. Waits run overnight and on days off; work only fills the hours you have.

DIY vs hiring it out

Estimate
Typical US store prices and labor rates, not a quote. A real price can differ a lot.

Do it yourself

Materials
$170–$220
Tools to buy
22 must-haves you don’t own
Tape measure (25 ft), Carpenter's pencil, Chalk line, Speed square, …
Rentals
1
About $40–$90 a day each
Your time
12–18 h
Total
$170–$220 + tools

Hire a pro

Materials + 15%
$190–$260
Pros mark up what they buy
Labor
7.5 h × $65–$95
$490–$710
Their time
7.5 hours
Permits
ask your town
Total
$680–$970

Before you go

0 of 5 checked
The small stuff that causes a second trip to the store.

Rules used

10 rules · Draft
Every number on this Sheet comes from these rules. A licensed pro reviews each one before a Sheet is marked verified.

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Project
Interior wall
Sheet
A-1
Date
Scale
Not to scale
DIY time
12–18 h
Rules
Draft — pending pro review
Other common sizes
8 ft
12 ft
16 ft