Construction Calculators

Board Foot Calculator Estimate the volume (and cost) of hardwood lumber in board feet.

Cubic Yard Calculator Convert length, width and depth into cubic yards of material and cost.

Square Footage Calculator Calculate the area of a room or surface in square feet (and cost).

Square Yards Calculator Convert a length and width into square yards — handy for carpet and turf.

Gallons per Square Foot Calculator Convert an area and depth into a water/liquid volume in gallons.

Size to Weight Calculator (Rectangular Box) Estimate the weight of a rectangular block from its size and material density.

Square Feet to Cubic Yards Calculator Convert a floor area and depth straight into cubic yards of fill.

Wall Square Footage Calculator Find net wall area after subtracting openings.

Square Meter Calculator Find an area in square meters and feet.

Brick Calculator Find how many bricks you need for a wall, including mortar joints and waste.

Gravel Calculator Calculate the volume, weight and cost of gravel for any area.

Sand Calculator Estimate the volume, weight and cost of sand for your project.

Tile Calculator Count the tiles and boxes you need for a floor or wall, plus waste.

Decking Calculator Estimate how many deck boards (and linear feet) you need for a deck.

Drywall Calculator Calculate drywall sheets and screws from your total wall/ceiling area.

Lumber Calculator Total the linear feet, board feet and cost of framing lumber.

Rebar Calculator Work out the bars and total rebar length for a slab grid.

Metal Weight Calculator Calculate the weight of a metal plate or bar from its size and metal type.

Concrete Weight Calculator Estimate how much a concrete slab, footing or block weighs.

Limestone Calculator crushed limestone for a base or fill.

River Rock Calculator river rock for landscaping.

Rip Rap Calculator rip rap stone for erosion control.

Steel Weight Calculator Estimate the weight of a steel plate or bar.

Steel Plate Weight Calculator Estimate the weight of a steel plate.

Aluminum Weight Calculator Estimate the weight of an aluminum plate or bar.

Plate Weight Calculator Estimate the weight of a metal plate.

Pipe Weight Calculator Estimate the weight of a hollow steel pipe.

Stone Weight Calculator Estimate the weight of a block of stone.

Retaining Wall Calculator Estimate blocks for a retaining wall.

Tonnage Calculator Find the tons of bulk material for an area.

Sealant Calculator Estimate caulk/sealant tubes for a joint.

Log Weight Calculator Estimate the weight of a log.

Glass Weight Calculator Estimate the weight of a glass pane.

Framing Calculator Count wall studs from length and spacing.

French Drain Calculator Find gravel for a French drain trench.

Baluster Calculator Count balusters for a railing.

Board and Batten Calculator Count boards and battens for a board-and-batten wall.

DIY Shed Cost Calculator Estimate the cost to build a shed.

Fire Glass Calculator Estimate fire glass for a fire pit or feature.

Rolling Offset Calculator Find pipe travel and run for a rolling offset.

SAG (Cable Sag) Calculator Find the sag of a suspended cable or conductor.

Sonotube Calculator Concrete needed to fill a Sonotube form.

Spindle Spacing Calculator Find spindle count and even gaps for a railing.

Spiral Staircase Calculator Find steps, riser height and tread angle for a spiral stair.

Vinyl Fence Calculator Find panels and posts for a vinyl fence.

Board-on-Board Fence Calculator Count boards for a board-on-board (overlap) fence.

Fence Cost Calculator Estimate fencing material cost.

Lumber Weight Calculator Estimate the weight of lumber from board feet.

Pea Gravel Calculator Estimate pea gravel volume and weight.

Concrete Calculator Find the concrete volume for a slab and the number of bags needed.

Cement Calculator Break a concrete volume into cement, sand and aggregate by mix ratio.

Concrete Block Calculator Count the concrete blocks (CMUs) for a wall, with waste.

Mortar Calculator Estimate bags of mortar mix for laying bricks or blocks.

Grout Calculator Estimate the grout needed to fill the joints between your tiles.

Concrete Column Calculator Volume and bags of concrete for round columns or tube footings.

Thinset Calculator Estimate bags of thinset mortar to set your tiles.

Hole Volume Calculator Concrete needed to fill round post holes.

Concrete Block Fill Calculator Find concrete to fill block cores.

Concrete Stairs Calculator Estimate concrete for a flight of stairs.

Concrete Estimator - Tube Concrete to fill a round tube form.

Paint Calculator Estimate gallons of paint for walls, including multiple coats.

Flooring Calculator Estimate the boxes of flooring needed for a room, with waste.

Carpet Calculator Estimate carpet area in square yards and its cost.

Fence Calculator Estimate posts, rails and pickets for a wood fence.

Paver Calculator Count the pavers needed for a patio or walkway, with waste.

Wallpaper Calculator Estimate rolls of wallpaper for a room, with waste for matching.

Paver Sand Calculator bedding sand under pavers.

Plywood Calculator Estimate plywood sheets needed for an area.

Siding Calculator Estimate siding squares for exterior walls.

Vinyl Siding Calculator Estimate vinyl siding boxes for your walls.

Deck Stain Calculator Estimate stain needed for a deck.

Shiplap Calculator Estimate shiplap boards for a wall.

Fence Post Depth Calculator Find how deep to set a fence post.

Ramp Calculator Find ramp length for a rise at a given slope.

AC Tonnage Calculator Estimate air conditioner size for a room.

Air Changes per Hour Calculator Find ACH from room volume and air flow.

Air Conditioner BTU Calculator Find the cooling capacity in BTU/h for a room.

Arch Calculator Find an arch's radius and arc length from span and rise.

Boiler Size Calculator Estimate boiler heating capacity from area.

Chicken Coop Size Calculator Find coop and run size for chickens.

Clearance Hole Calculator Find clearance and pilot hole sizes for screws.

Epoxy Calculator Estimate epoxy volume for a coating.

Rectangle Fence Perimeter Calculator Find the perimeter and posts of a rectangular fenced area.

Floor Area Ratio (FAR) Calculator Find the floor area ratio of a building.

Furnace Size Calculator Estimate furnace heating capacity from area.

Heat Loss Calculator Find heat loss through a building component.

Hoop House Calculator Estimate plastic and hoops for a hoop house.

Ladder Angle Calculator Find safe ladder placement angle and base distance.

Stair Carpet Calculator Estimate carpet or runner length for stairs.

Wainscoting Calculator Estimate panels for wainscoting.

Angle Cut Calculator Find the miter cut angle for two boards meeting at a corner.

Angle of Depression Calculator Find the downward angle and line-of-sight distance.

Round Pen Calculator Find panels needed for a round pen.

Roof Pitch Calculator Convert roof rise and run into pitch, angle and slope factor.

Roofing Calculator Turn a building footprint and pitch into roof area, squares and bundles.

Rafter Length Calculator Calculate the length of a roof rafter from run, pitch and overhang.

Roof Shingle Calculator Convert roof area into shingle bundles and squares, with waste.

Roof Truss Calculator Count roof trusses from length and spacing.

Snow Load Calculator Estimate roof snow load.

Birdsmouth Cut Calculator Find the birdsmouth (rafter notch) cut angles.

Gambrel Roof Calculator Find rafter lengths and ridge height for a gambrel roof.

Metal Roof Cost Calculator Estimate the cost of a metal roof.

Asphalt Calculator Estimate the tons of hot-mix asphalt for a driveway or lot.

Crushed Stone Calculator Find the cubic yards and tons of crushed stone for a base layer.

Gravel Driveway Calculator Calculate the gravel volume, weight and cost for a driveway.

Road Base Calculator road base aggregate for a sub-base.

Concrete Driveway Cost Calculator Estimate concrete volume and cost for a driveway.

Pool Calculator Find the water volume of a rectangular swimming pool in gallons.

Tank Volume Calculator Calculate the volume of a vertical cylindrical tank in gallons and liters.

Pipe Volume Calculator Calculate the water volume held inside a pipe of a given size and length.

Pond Calculator Estimate the water volume of a rectangular pond.

Gallons Per Minute Calculator Find flow rate from a volume and time.

Fire Flow Calculator Estimate required fire flow for a building.

Liters per Minute Calculator Find flow rate in liters per minute.

Stair Calculator Work out the number of steps, riser height, run and stringer length.

Bolt Torque Calculator Estimate tightening torque from bolt size, clamp load and friction factor.

Miter Angle Calculator Find the miter cut angle for joining pieces into a polygon frame.

Insulation Calculator Estimate insulation bags for an area.

Beam Deflection Calculator Find the center deflection of a simply-supported beam.

Beam Load Calculator Find max moment and support reactions for a distributed load.

Bending Stress Calculator Find bending stress from moment and section modulus.

Box Fill Calculator Find the minimum electrical box volume (NEC).

Carbon Equivalent Calculator Find carbon equivalent (CE) for weldability.

CFM Calculator Find cubic feet per minute from room volume and air changes.

Door Header Size Calculator Estimated header size for a door opening. Verify with span tables.

Floor Joist Calculator Count floor joists from length and spacing.

Junction Box Sizing Calculator Find minimum junction box length for straight pulls (NEC).

K-Factor (Bend Allowance) Calculator Find bend allowance from K-factor.

Material Removal Rate Calculator Find MRR for milling.

Pitch Diameter Calculator Find the pitch diameter of a gear.

Punch Force Calculator Find the force to punch a hole.

Rivet Size Calculator Find rivet diameter and length for a material thickness.

Spindle Speed Calculator Find ideal RPM from cutting speed and tool diameter.

Taper Calculator Find taper per foot and angle.

Thread Calculator Find minor diameter and thread depth from major diameter and TPI.

Thread Pitch Calculator Find thread pitch from TPI, or vice versa.

True Position Calculator Find the true position deviation diameter.

Welding Calculator Find fillet weld throat and area.

Wood Beam Span Calculator Estimate max simple-beam span from allowable stress.

Bolt Circle Calculator Find the angular spacing and chord between bolts.

Bowl Segment Calculator Find the miter angle and segment angle for a segmented ring.

Countersink Depth Calculator Find the depth to cut a countersink.

Elevation Grade Calculator Find slope grade %, angle and ratio from rise and run.

Vertical Curve Calculator Find the K-value of a vertical highway curve.