Calculated result
605screws
Screws to buy
Formula
DW-FST-001screws = ceil(sheets × screws per sheet × (1 + waste)); boxes = ceil(screws ÷ 1000)
1 boxes
1,000-count boxes
576 screws
Screws before waste
Painting & drywall calculator
Drywall screw calculator
18 sheets at 32 screws each with 5% waste is 605 screws, which rounds to 1 box of 1,000.
Formula. screws = ceil(sheets × screws per sheet × (1 + waste)); boxes = ceil(screws ÷ 1000)
Screw count and 1,000-count box round-up from sheet count.
By Feroz Sheikh · Formula DW-FST-001 v1.0.0 · Tested formula
Formula
DW-FST-001v1.0.0Project inputs
Enter your measurements. Switching units converts the same project, including coverage and unit rates. Package yields keep the unit printed beside each field.
Refine measurements and rates at any time. Your current values are included in the material-list PDF.
Planning estimate, not engineering advice. Confirm site measurements and product specifications. Calculation limits.
This calculator multiplies sheet count by screws per sheet, applies a visible allowance, then rounds to 1,000-count boxes.
- Use the sheet count from the drywall calculator.
- Raise screws per sheet for ceilings and 5/8 fire board.
- Buy whole boxes — leftover is cheaper than a mid-hang store run.
Add your project costs
Enter supplier prices and any labour, equipment or delivery costs. Pick a currency — badges, inputs, and totals follow.
Costs use the sheet, mud or fastener rate you type. Construclytic does not fetch drywall prices. Finishing labour stays a separate estimate line.
How this calculator works
A transparent drywall fasteners takeoff.
Feroz SheikhWritten and reviewed by Feroz Sheikh · founder
This calculator multiplies sheet count by screws per sheet, applies a visible allowance, then rounds to 1,000-count boxes.
DW-FST-001 counts screws from sheet count and a stated per-sheet rate, then rounds to 1,000-count boxes. It does not pick a screw length. Tape and compound stay extras.
Worked example. Example: 18 sheets at 32 screws each with 5% waste is 605 screws, which rounds to 1 box of 1,000.
See the example inputs and calculated result
This separate example uses the calculator's starting values in imperial units. It stays unchanged when you edit the tool above. Example rates, yields and dimensions are assumptions, not recommendations for your project.
| Input | Example value |
|---|---|
| Sheets | 18 count |
| Screws per sheet | 32 count |
| Waste factor | 5 % |
Example result: Screws to buy — 605 screws.
screws = ceil(sheets × screws per sheet × (1 + waste)); boxes = ceil(screws ÷ 1000)
Use the labelled units above when reproducing this example. To work in metric, switch the calculator to Metric; applicable measurements are converted, while product-specific units remain labelled.
- 1. Use the sheet count from the drywall calculator.
- 2. Raise screws per sheet for ceilings and 5/8 fire board.
- 3. Buy whole boxes — leftover is cheaper than a mid-hang store run.
Field notes that change the number
- Ceilings often take more fasteners than walls — raise the per-sheet input.
- Type W, Type S and collated screws are different SKUs.
- A 1,000-count box is the usual purchase step.
Common mistakes
- Using wall rates on a ceiling.
- Ordering by weight instead of count.
- Treating this as a fire-rated assembly.
Need the broader workflow? Read the painting & drywall planning guide.
How-to: Drywall tape rolls: area allowance versus measured seams · How to count drywall sheets
Questions
Questions about drywall fasteners
32 per sheet?
A common 4×8 wall hang. Ceilings, 16 in O.C. framing and 5/8 board often want 40–50. Change the input.
Does this include nails?
No. It is a screw takeoff. Adhesive and nails are separate if the spec calls for them.
What is the formula ID?
This drywall screw calculator publishes formula DW-FST-001, version 1.0.0. The ID stays on the result and on the estimate line.