Easily estimate the number of studs, plates, and total cost for your stud wall frame. Supports metric & imperial units. Includes stud spacing and door opening.
First, convert all measurements to millimetres (if metric) or inches (if imperial). Calculate net wall length by subtracting total door widths. The number of studs is the net wall length divided by stud spacing, plus one (for the end), plus two extra studs per door opening, rounded up. The number of plates is the total length of wall (including over doors) times two (for top and bottom), divided by plate length, rounded up. Total cost is (number of studs × stud price) + (number of plates × plate price).
Inputs: Metric, wall length 3.6m, wall height 2.4m, stud spacing 400mm, 1 door (0.8m), stud price £2.50, plate price £3.00, stud length 2.4m, plate length 2.4m. Net wall length: 3.6m - 0.8m = 2.8m. 2.8m/0.4m = 7, plus 1 = 8 main studs. 2 door studs = 2. Total studs = 10. Plate total length: 3.6m × 2 = 7.2m. 7.2m/2.4m = 3. Plates needed = 3. Total cost: (10 × £2.50) + (3 × £3.00) = £25.00 + £9.00 = £34.00.
Start by selecting your preferred unit system, then enter your wall’s length and height. Choose your stud spacing, add any door openings, and input material lengths and costs. The calculator will show you exactly how many studs and plates you need, plus a cost estimate.
Standard stud spacings are 400mm (16in), 450mm (18in), or 600mm (24in). Closer spacing provides more strength but uses more timber. Plates run along the top and bottom of the frame, and extra studs are required for each door or opening.
For each door or opening, the calculator adds two extra studs and adjusts the net wall length. Always measure door widths accurately to ensure you purchase the correct amount of material.
Input the cost per stud and per plate in your chosen currency. The calculator multiplies these by the quantities needed to provide a total material cost, helping you budget more effectively.
Whether you work in metres or feet, millimetres or inches, our calculator handles conversions automatically. This ensures accuracy for users worldwide, regardless of measurement system.
To frame a stud wall, fix top and bottom plates in position, mark stud locations at your chosen spacing, then install vertical studs and any additional studs for doors or corners. Secure everything with suitable fixings.
Measure the wall’s length, subtract door widths, divide by your stud spacing, add one for the end, and add two studs per door. Our calculator automates these steps for you.
The cost depends on wall size, stud spacing, timber prices, and door openings. Use the calculator with your local material prices for an accurate total cost estimate.
Frame the wall as normal, but add two extra studs for each door opening and fit a horizontal header above the door. The calculator includes these extra studs in its estimate.
Corners usually need three studs arranged to provide fixing points for adjacent walls. Ensure your layout includes enough studs for secure corners, especially if connecting to another wall.
