How to calculate metal studs and track from plans

Metal stud framing is a count, not an area: studs along the wall at a fixed spacing, track top and bottom, and extras wherever the wall starts, stops, turns, or opens.

1. Get linear feet per wall type

From the floor plan, total the length of each wall type. The wall-type legend tells you stud size (e.g. 3-5/8" or 6"), gauge, and spacing (usually 16" or 24" on center).

2. Base stud count

Studs = (wall length in inches ÷ spacing) + 1.

A 20 ft wall at 16" o.c.: (240 ÷ 16) + 1 = 16 studs. At 24" o.c.: (240 ÷ 24) + 1 = 11 studs.

A quick rule for totals: at 16" o.c. figure about 0.75 studs per LF; at 24" o.c., about 0.5 per LF — then add extras.

3. Add extras

• Corners and intersections: 1–2 extra studs each.
• Openings: typically 2 extra studs per door or window (jambs), plus the header and cripples the details call for.
• Wall ends: 1 extra where a wall dead-ends.

4. Track

Track runs top and bottom: track LF = wall LF × 2. Add about 5–10% for laps and cuts, then divide by stick length (commonly 10 ft) for piece count.

5. Stud length

Order studs to the wall height from the wall-type detail — to ceiling or to deck. Heights over standard lengths may need longer studs or a heavier gauge; the legend or structural notes will say.

Where counts usually go wrong

• Mixing spacings or stud sizes across wall types.
• Missing walls that are only shown on an enlarged plan.
• Using ceiling height for walls that run to deck.

ReadMyBlueprint reads stud size, gauge and spacing straight from the wall-type legend and totals studs and track per wall type — every number traced back to the wall it came from.

Related: Metal framing takeoff · How to estimate drywall sheets · How to do a construction takeoff

Reference: Metal stud sizes & dimensions · Metal stud gauge chart