Construction Tools
Professional construction calculation tools for contractors, builders, and DIY enthusiasts. Calculate concrete volume for slabs, footings, columns and stairs, estimate paint coverage by room size and coats, compute tile quantities for floors and walls with grout spacing and waste, estimate flooring materials for rooms of any shape, calculate brick or block counts for walls, determine optimal staircase dimensions including rise, run, angle and number of steps, compute roof pitch, slope angle and slope factor, calculate gravel, sand, soil or mulch volumes for landscaping, estimate fence post, rail and picket materials, calculate square footage for rooms, floors and lots, compute lumber board feet for woodworking projects, estimate drywall sheets for walls and ceilings, and calculate roofing materials including shingles, underlayment and ridge caps.
Work out how much gravel, mulch, sand, or soil you need for landscaping. Get volume, weight, bags, and cost across multiple shapes, materials, and units.
Estimate how many bricks, plus the mortar, cement, and sand, you need for walls and pillars, with openings, bond patterns, waste factor, and cost.
Estimate fence materials — posts, rails, pickets, panels, mesh, concrete, and hardware — for wood, chain-link, vinyl, and metal fences, with cost and a diagram.
Calculate optimal stair dimensions including riser height, tread depth, angle, and stringer length, and check building-code compliance with the comfort rule instantly.
Calculate how many drywall sheets you need for walls and ceilings, with door and window deductions, a waste factor, accessories, multi-room totals, and cost.
Calculate board feet for lumber and logs. Build a material list, convert between units, and estimate costs with a waste factor.
Estimate how much flooring you need for any room shape: pieces, boxes, waste, skirting, and cost for laminate, vinyl, hardwood, and tile.
Calculate roof pitch, angle, slope percentage, and multiplier from rise and run, a pitch ratio, or an angle, then estimate rafter length and roof area.
Work out how many tiles you need for a floor or wall, with grout spacing, laying patterns, waste percentage, door and window deductions, boxes, and cost.
Calculate how much paint you need for interior or exterior rooms. Subtracts doors and windows, factors paint type, coats, texture, and waste, with multi-room totals.
Calculate concrete volume for slabs, footings, columns, walls, stairs, and more. Get bag estimates, cost projections, and export results as PDF.
Calculate area in square feet for any room or space. Supports 8 shapes, multi-zone areas, unit conversion, and cost estimation.