Work out exactly what to buy.
Construction and remodeling calculators that give you a real shopping list — commercial sizes, honest waste factors, and the code reference behind every number.
Most material calculators stop at a square-footage number. That is not what you take to the counter. Ours carry the job all the way through: how many boxes, how many bags, how many sticks, at the sizes the store actually stocks — and then hand you off to the next calculation your project needs.
Tile & Flooring
Everything you need to price and order a tile job: how many tiles, how many boxes, how much thinset and grout, and how the layout changes all three.
- Tile Calculator Square footage, tiles and boxes, with grout joints and pattern waste included.
- Floor Tile Calculator Tile, boxes, cement backer board, screws and seam tape for a floor.
- Shower Tile Calculator Square footage of every tiled surface in a shower, plus waterproofing coverage.
- Wall Tile Calculator Tiles, full courses, the height of the cut row, and edge trim.
- Backsplash Tile Calculator Backsplash tile by the running foot, with outlets and edge trim.
- Ceiling Tile Calculator Suspended ceiling panels plus the whole grid: tees, wall angle and wire.
- Grout Calculator Grout volume, weight and bags from the actual joint geometry, hex included.
- Thinset Calculator Thinset bags from trowel notch, area and back-buttering.
- Tile Spacing Calculator Tiles per run, the leftover cut, and the joint width that lands even.
- Tile Layout Planner Perimeter cut sizes for a centered layout versus starting at a wall.
- Tile Waste Factor Waste factors by pattern and job, and why box sizes override the percentage.
- Tile Weight Calculator Weight per box and per order, plus the finished assembly load in pounds per square foot.
Reference Tables
The numbers you look up over and over: standard sizes, actual dimensions, coverage rates and code minimums.
- Standard Door Sizes and Rough Openings Interior and exterior door sizes with rough openings and real clear widths, in inches.
- Window Sizes, Rough Openings and Egress Standard sizes, rough openings, and the egress numbers worked out properly.
- Lumber Sizes: Nominal vs Actual Real dressed sizes for every nominal, dry and green, from the PS 20 standard.
- Plywood and OSB Thickness Real thickness ranges from the PS 1 and PS 2 standards, plus the span rating that...
- Nail and Screw Sizes Penny sizes, screw gauges and pilot holes, with the diameters the IRC actually specifies.
- Stair Rise and Run: Code Limits and the Layout Table IRC riser and tread limits, plus total rise converted into riser count and stair length.
- Rebar Sizes and Markings ASTM A615 diameters, areas and weights, the reason the odd sizes are odd, and how to...
- PVC and Copper Pipe Sizes Outside diameters and walls for PVC schedule 40 and 80 and copper K, L and M, and how...
- Ceiling Tile Sizes and Grid Layout Real panel dimensions, how much flange they land on in each grid, and the border-cut...