How to Build a Stud Wall: Step-by-Step Guide

Stud walls are fundamental carpentry. They're not complicated, but doing them properly matters - walls that aren't plumb and square cause problems for everyone who works on them after you. Here's how to build one right.

Planning the Wall

Before cutting anything, work out:

• Exact position of the wall
• Where doors or openings go
• Height (floor to ceiling)
• What's going on it (heavy items need extra noggins)
• What services will run through it

Mark the wall position on the floor and use a plumb bob or laser to transfer to the ceiling.

Materials

For a standard interior wall:

• Head and sole plate: 75x50mm or 100x50mm timber
• Studs: Same timber as plates
• Noggins: Offcuts from studs work fine
• Fixings: 90mm nails or screws for framing

Stud spacing is typically 400mm or 600mm centres, depending on what you're boarding with. 400mm centres are standard for plasterboard.

Step 1: Fix the Head and Sole Plates

Cut your head plate and sole plate to length. If there's a door opening, you'll leave a gap in the sole plate (some people fit the full plate then cut it out later - either works).

Fix the head plate to the ceiling joists. If you're running parallel to joists, you'll need noggins in the ceiling or to position the wall under a joist. Fixings into thin air won't hold.

Fix the sole plate to the floor. Into concrete, use concrete screws or bolts. Into timber floors, screws into joists work best.

Check both plates are directly above/below each other using a spirit level or plumb line.

Step 2: Mark Stud Positions

Mark the stud positions on both plates:

• Full studs at both ends
• Studs at 400mm or 600mm centres
• Studs either side of door openings
• Mark with an X where the stud goes, so you're not measuring to the wrong side

Step 3: Cut and Fit Studs

Measure the height for each stud individually - floors and ceilings aren't always level. Cut studs about 1-2mm short so they fit without forcing.

Fix studs by:

• Skew nailing through the stud into the plates (traditional)
• Using framing angles
• Nailing through the plates into the stud ends (where accessible)

Check each stud is plumb as you go. A wall full of leaning studs is a nightmare to board.

Step 4: Door Openings

For a door opening, you need:

• Full-height studs either side of the opening
• Header across the top (carry the load if needed)
• Cripple studs above the header if the wall continues to ceiling height

Door lining width determines stud spacing. Standard lining needs about 90mm clearance each side.

Step 5: Noggins

Noggins brace the studs and provide fixing for items:

• At mid-height between studs for board joints
• At heights where things will be fixed (sockets, shelves, TV mounts, etc.)
• Where board edges need support

Stagger noggins slightly so you can nail straight through the stud into the noggin end.

Common Mistakes

• Plates not aligned: Wall ends up out of plumb
• Inconsistent stud spacing: Board edges don't land on studs
• No noggins for fixtures: Nowhere to fix sockets, brackets, etc.
• Studs too tight: Forces wall out of position
• Not checking plumb: Each stud should be checked individually

Tools You Need

• Circular saw or mitre saw for cutting studs
• Impact driver or framing nailer
• Spirit level (long one) and/or laser level
• Tape measure and pencil
• Square for marking cuts

A framing nailer makes stud walls much faster, but you can do the job with screws and an impact driver if you don't have one.