Project Calculators

Concrete & Masonry ↗

Bags, ready-mix, and base material for pours and masonry work.

Concrete Slab — bags or ready-mix for a patio, walkway, or shed slab, with waste factor included.
Fence Posts — bags of concrete per post plus the gravel base, with hole sizing per Quikrete's guide.
Sonotube / Footings — bags per round form tube at any diameter and depth.
Pavers & Base — pavers, compacted gravel base, bedding sand, and polymeric sand per ICPI standards.
Concrete Block — CMU block count and pre-blended mortar bags for a wall.
Retaining Wall — wall blocks, caps, base, and drainage backfill per Allan Block guidance.

Yards, tons, and pounds for lawn and yard projects.

Mulch — cubic yards or bags for your beds using the 324 rule, with multi-bed support.
Gravel & Stone — cubic yards and tons by material, with a compaction allowance for bases.
Topsoil — yards, 40 lb bags, and an approximate weight range for beds and raised beds.
Sod — rolls and pallets with a cutting allowance, using the 450 sq ft industry-standard pallet.
Grass Seed — pounds of seed by grass type for a new lawn or overseeding, and the bag to buy.
River Rock — tons and yards of decorative stone, with depth guidance by stone size.

Boards, fasteners, stringers, and finish for deck and lumber projects.

Board Feet — board feet and cost from nominal dimensions, with the nominal-to-actual size table.
Deck Boards — board and screw counts by width, gap, stock length, and joist spacing.
Deck Stain — gallons for one or two coats, with a railing allowance.
Stairs — rise, run, stringers, and tread boards, checked against IRC 2021 limits.
Wood Fence — posts, rails, and pickets for a privacy fence, with a pre-filled concrete link.
Wall Framing — studs, plates, and sheathing at 16 or 24 inches on center per IRC R602.3.

Need a straight conversion instead? 28 converters cover length, weight, temperature, volume, area, and more — all in the navigation above. Sources for every factor are on Sources & Methods.