Know what your project needs before you buy anything
Answer a few measurements and get the materials, a waste-adjusted shopping list, a cost range and a clear next step — for fences, gravel driveways, concrete slabs and mulch beds.
Choose your calculator
Every one is free, needs no login, and gives a full materials + cost plan.
Fence Calculator
Posts, rails, pickets or panels, concrete, hardware and a materials cost range for wood or vinyl fencing.
Open calculator →Gravel Driveway Calculator
Cubic yards, tons, truck loads and a base-vs-delivered cost range for driveways, paths and pads.
Open calculator →Concrete Slab Calculator
Bag count or ready-mix cubic yards, gravel sub-base, wire mesh and a cost range for your pour.
Open calculator →Mulch Calculator
Cubic yards, bag count and a bulk-vs-bags cost comparison for mulch, topsoil or compost.
Open calculator →Paver Calculator
Paver count, base gravel, bedding sand and a cost range for a patio, walkway or driveway.
Open calculator →Drywall Calculator
Sheets of drywall, joint compound, tape, screws and a DIY vs. installed cost range for any room.
Open calculator →Flooring Calculator
Boxes of LVP, laminate or hardwood, or carpet yardage, plus underlayment, trim and a cost for one room or a whole floor.
Open calculator →Tile Calculator
Tiles and boxes with the grout joint counted, plus bags of thinset and grout and a cost for a floor or wall.
Open calculator →Baluster Calculator
Baluster count and code-compliant spacing for a deck or stair railing, using the 4-inch rule.
Open calculator →Rebar Calculator
Bar count, total length, weight and a cost range for a concrete slab reinforcement grid.
Open calculator →Run a website for DIYers or contractors? Add any of these calculators to your pages, free →
How these construction calculators work
Enter your measurements
Length, dimensions and the details specific to your project — no sign-up required.
Get your full plan
Every material, a waste allowance, a cost range, and the assumptions behind the numbers — shown, not hidden.
Take the next step
A printable shopping list, plus the option to get delivery or installation quotes.
Why not just use a generic calculator?
Most calculators stop at a single number — cubic yards, or a bag count. A real project needs more than that: what to actually buy, roughly what it costs, and what to do next. Every calculator here shows its formulas and assumptions, applies a waste allowance so you don't come up short, and separates a DIY estimate from the alternative (delivery, ready-mix, or professional installation) so you can compare.
What this isn't
These calculators are not contractor quotes, engineering advice, or a code compliance check. Prices are national-average ranges, not live local pricing. Use them to plan and budget — then confirm final quantities, local requirements and pricing with your supplier or contractor before you buy.
Frequently asked questions
Is Build Material Planner really free?
Yes. Every planner result — materials, waste-adjusted quantities, cost range and shopping list — is free with no account or login required.
How accurate are the cost estimates?
Estimates use national-average retail and delivery price ranges, not live local quotes. Treat them as a planning range to budget against — local pricing varies by region and supplier.
Do these planners replace a contractor quote?
No. They estimate materials and typical costs for planning purposes. They are not engineering advice, a code compliance check, or a substitute for a written contractor quote.