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→Decks
Plan boards, framing, footings, fasteners, stain, and project cost.
Free home-project planning tools
Know what your project needs before you buy.
Accurate, practical calculators for decks, roofing, fencing, concrete, landscaping, and home improvement projects.
✓No signup required
✓Mobile friendly
✓Practical material estimates
Sample project
12' × 16' Deck
192 sq ft
Deck boards
58
Joists
13
Concrete bags
38
Waste allowance
10%
Estimated materials
$1,850–$2,450
Example
Get material quantities, waste estimates, and planning assumptions in one place.
Project calculators
Start with what you're building.
Each calculator is designed to give you usable project information—not just a number.
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Coming soon
Roofing
Calculate roof pitch, rafter length, shingles, area, and materials.
Roof PitchRafter LengthShingles
03
Coming soon
Fencing
Estimate posts, panels, concrete, spacing, materials, and total cost.
Fence MaterialFence CostPost Spacing
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Coming soon
Concrete
Get accurate quantities for slabs, footings, post holes, and bags.
Concrete BagsSlab VolumePost Holes
Simple by design
From measurements to a useful plan.
01
Calculate
Enter the dimensions and details of your project using straightforward inputs.
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Plan
See material quantities, waste allowances, measurements, and assumptions.
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Estimate
Understand your likely material needs and project costs before you buy.
Better project planning
Fewer trips to the store. Fewer expensive surprises.
Projometry is being built around transparent formulas, practical assumptions, and clear explanations so you can understand where every estimate comes from.