Construction & Trades

Free Concrete Slab Calculator — estimate cubic yards, cubic feet, and cubic meters for slabs, walls, and round columns. Get bag counts for 40 lb, 60 lb, and 80 lb premix bags plus cost estimates.

Free Cubic Yard Calculator — calculate volume in cubic yards, cubic feet, and cubic meters for landscaping, construction, and material delivery. Supports rectangular, circular, triangular, and trapezoidal shapes with weight estimates.

Free Decking Calculator — estimate board count, linear footage, joist count, fasteners, and total material cost for your deck project. Supports pressure-treated lumber, composite, cedar, PVC, and hardwood with Imperial and metric units.

Free fence calculator that estimates posts, pickets, rails, nails, and material costs for wood, vinyl, chain-link, aluminum, cedar, redwood, and composite fences.

Free wall framing calculator for stud-framed walls. Calculate stud count, plate lengths, sheathing sheets, header sizes (IRC R602.7), and total material cost for any wall section.

Free Roof Pitch Calculator — instantly convert between pitch ratio (X:12), angle in degrees, slope percentage, and rafter length. Includes framing cut angles, material recommendations, roof area estimator, and a visual roof diagram.

Free Sand Calculator — estimate how much sand, gravel, or topsoil you need for any project. Enter your area dimensions, choose a material type, and instantly get volume in cubic yards and feet, weight in tons and pounds, bag counts, and optional cost estimates.

Free Soil Calculator — quickly estimate how much topsoil, garden soil, or potting mix you need for any lawn, garden bed, raised bed, or container project. Calculate cubic yards, cubic feet, bags needed, and weight.

Free Spiral Staircase Calculator — design code-compliant spiral stairs with riser height, tread depth, handrail length, stringer lengths, Blondel comfort score, and IBC/IRC compliance checks.

Free Square Yards Calculator — instantly calculate area in square yards for any shape. Supports rectangles, squares, circles, triangles, trapezoids, parallelograms, and ellipses with per-field unit selection, waste/overage percentage, cost estimation, multi-room mode, and CSV export.

Free steel plate weight calculator — calculate the weight of rectangular, square, circular, ring, and perforated metal plates in kg, lb, and metric tons for any material density.

Free Steel Weight Calculator — instantly calculate the weight of any steel shape (round bar, square bar, plate, pipe, I-beam, angle, channel) in kg, lbs, and metric tonnes. Supports 12+ materials, batch bill-of-materials mode, cost estimation, CSV export, and standard profile lookup (IPE, HEA, HEB, W-shapes).

Free Stone & Gravel Calculator — estimate volume (cu ft, cu yd, cu m), weight (lbs, tons, kg, tonnes), bag count, truck loads, and total cost for any landscaping or construction project.