Plan interior partitions with precise material and cost estimates. Set length, height, openings, and stud spacing quickly. Choose board layers, waste, and see totals.
| Scenario | Length | Height | Spacing | Openings | Sheathing | Studs | Sheets |
|---|---|---|---|---|---|---|---|
| Office partition | 4.80 m | 2.70 m | 400 mm | 1 (0.90×2.10 m) | 2 sides, 1 layer | ≈ 16 pcs | ≈ 12 sheets |
| Warehouse divider | 24.00 ft | 10.00 ft | 16 in | 0 | 1 side, 2 layers | ≈ 21 pcs | ≈ 20 sheets |
Values above are illustrative; your results depend on settings and waste.
Partition walls look simple, yet estimating errors multiply across a floor. For example, a 12 m by 3 m wall has 36 m² per side, and openings change net area. This calculator converts geometry into boards, studs, track, fasteners, and insulation options so ordering matches installation.
Interior partitions typically use light-gauge steel or timber studs with gypsum board finishes. Standard sheets are often 1.2×2.4 m or 4×8 ft, with 12.5–15.9 mm thickness (1/2–5/8 in). Selecting one or two layers per side directly changes sheet and screw quantities.
Stud spacing drives stiffness and the number of vertical members. Common layouts are 400 mm or 600 mm, and 16 in or 24 in. Closer spacing supports board edges and heavier fixtures, while wider spacing reduces members but often needs thicker board and backing around openings. The estimate uses length ÷ spacing, then adds end studs and extra members for openings to reflect real layout.
Top and bottom tracks frame the wall line. Some specifications require extra top plates or a deflection detail, so you can set top-plate quantity. Track runs are multiplied by wall length, then converted into stock pieces such as 3 m, 10 ft, or 12 ft lengths.
A second board layer increases mass for sound control and can support fire-rated assemblies when paired with the correct details. Mineral wool or fiberglass batts can improve acoustic performance. Because upgrades add material and labor, the cost section shows their impact immediately.
Doors and glazing reduce board area but usually increase framing at jambs and headers. The calculator subtracts opening area while adding extra studs per opening. A waste factor can cover blocking, corner backing, and field adjustments.
Waste includes offcuts, damaged corners, and changes after layout. Many estimators use 5–10% for boards and 2–5% for framing, then adjust for room complexity. Use the waste input to match your delivery plan and site conditions.
Strong estimates separate quantities (studs, track length, sheets, screws, insulation) from rates (unit prices, labor hours). Export CSV for takeoffs and procurement, and PDF for approvals. Re-run the calculation when drawings change to keep budget and schedule stable.
Use net area for board quantity, then add waste. Gross area is useful for quick planning, but openings remove sheets while still requiring reinforcement around edges.
Use the spacing required by drawings and load needs. 400 mm (16 in) gives better board support and fixture backing; 600 mm (24 in) reduces members but may need thicker boards.
It multiplies board layers. One-sided sheathing is common for service walls; two-sided is typical for room partitions. More sides increase sheets, screws, tape, and compound.
Openings need jamb studs, trimmers, and header support. Even though board area decreases, framing usually increases near doors and windows for stiffness and fastener edges.
Many projects start with 5–10% for boards and 2–5% for framing, then adjust for room complexity, delivery handling, and crew experience. Use higher waste for many small segments.
Yes, if you enter a crew productivity rate and labor cost per hour. The model estimates labor hours from wall area and adds labor cost to your material totals.
Exports include the same displayed results, typically rounded for readability. For purchasing, round up to full stock lengths and whole bundles based on your supplier’s packaging.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.