Nail and Screw Count Calculator
Estimate fasteners for sheets, boards, and panel layouts with optional pack and price fields.
Find out how much you need for your DIY and construction projects
DIY lovers and tradespeople can quickly estimate how much they need with a dozen different calculators
Sheet Count Calculator
Estimate sheet or board quantities from area, sheet size, waste allowance, and optional pack pricing.
Paint Calculator
Estimate paintable area, coverage, containers to buy, and rough cost for room and surface jobs.
Concrete Bag Calculator
Estimate concrete volume and bag count for slabs, trenches, post holes, and round piers.
Flooring Pack Calculator
Estimate floor area, waste, packs to buy, and rough cost for flooring installations.
Mulch Soil Gravel and Sand Calculator
Estimate bulk material volume, bags or supplier units to buy, and optional price-based cost.
Tile Calculator
Estimate tile counts, boxes to buy, and optional grout or adhesive planning fields.
Decking Board Calculator
Estimate decking boards, optional fastener packs, and rough cost from deck geometry.
Fence Materials Calculator
Estimate posts, rails, pickets, concrete bags, and optional cost breakdowns for fence projects.
Drywall Plasterboard Gyprock Calculator
Estimate sheets, screws, and optional finish materials for wall and ceiling planning.
Paver Patio Materials Calculator
Estimate pavers, base, bedding, and optional box-count or cost planning for patios and paths.
Skirting Baseboard Trim Calculator
Estimate linear trim lengths, waste, optional fasteners, and rough cost for finish carpentry.
How to use RoxyCalc before you buy materials
RoxyCalc is designed for the planning step that happens before a trip to the hardware store or a supplier quote. Start with the calculator closest to the material you are buying, enter real measurements from the job, then use the result to compare pack sizes, bag yields, board lengths, or container coverage.
The calculators are separated by material because each project type has different waste drivers. Paint depends on coats and surface texture, concrete depends on volume and excavation accuracy, flooring depends on pack coverage and layout pattern, and fencing depends on repeated posts, rails, and panels.
A practical estimating workflow
- Measure the project in the unit system you actually use on site.
- Run the matching calculator and review the assumptions below the result.
- Add pack, bag, box, or container prices only after the quantity looks sensible.
- Open related calculators when one material drives another, such as sheets before fasteners.
Every result is a planning estimate, not licensed trade advice. Product labels, manufacturer installation instructions, structural requirements, and local code still take priority for the final purchase and installation.
Why these calculators are useful
Material estimates can become confusing quickly because each product is sold in a different unit: sheets, boxes, bags, boards, packs, cans, or cubic volume. RoxyCalc keeps those questions separated so you can focus on one material at a time and see the assumptions behind the result.
Use the calculators as a first planning pass before comparing supplier prices or checking product labels. They are designed for everyday DIY and construction preparation, with optional price fields where a rough purchase cost is helpful.
RoxyCalc FAQ
Are these results exact purchase instructions?
No. They are planning estimates intended to help with quantity math, pack rounding, and rough cost checks before you buy.
Do I need to create an account?
No. RoxyCalc runs in your browser and does not require an account or stored project.
Can I use the site on mobile?
Yes. The calculator pages are designed to work on common phone, tablet, and desktop screen sizes.