47 tools
Construction & DIY
Concrete, paint, tiles, flooring, slopes, excavation and material quantities for real building jobs.
Tools in this category
- Construction & DIYConcrete Volume CalculatorCubic metres and tonnes of concrete needed for a slab, with a waste allowance.
- Construction & DIYPaint CalculatorLitres of paint needed for a given wall area, number of coats and coverage rate.
- Construction & DIYTile CalculatorHow many tiles you need for an area, with a cutting allowance.
- Construction & DIYSlope and Gradient CalculatorSlope as a percentage, an angle, a ratio and the sloping length.
- Construction & DIYFlooring CalculatorHow many packs of flooring to buy for a room, including waste.
- Construction & DIYRoom Wall Area CalculatorWall area, floor area, perimeter and volume of a rectangular room.
- Construction & DIYGravel and Aggregate CalculatorTonnes and cubic metres of gravel for a given area and depth, with the cost.
- Construction & DIYBrick CalculatorNumber of bricks or blocks for a wall area, counting the mortar joint.
- Construction & DIYRoof Pitch CalculatorRoof angle, pitch percentage, rafter length and roof area per metre of length.
- Construction & DIYDrywall CalculatorSheets, screws, joint tape and compound for a plasterboard job, from the area and the sheet size.
- Construction & DIYExcavation Volume CalculatorTrench volume in place, loose spoil volume after bulking, weight and truck loads.
- Construction & DIYConcrete Mix CalculatorCement bags, sand and gravel for a given volume and mix ratio.
- Construction & DIYStair CalculatorNumber of steps, exact riser height, total run and the Blondel comfort value.
- Construction & DIYLand Plot Area Calculator (four sides)Area of an irregular four-sided plot from its four sides and one diagonal, in square metres, hectares and acres.
- Construction & DIYHeat Loss Through a Wall CalculatorHeat lost through a surface, the daily energy it costs and the price of that energy.
- Construction & DIYSwimming Pool Volume CalculatorPool volume in cubic metres and litres, plus the filtration turnover time.
- Construction & DIYWallpaper CalculatorHow many rolls of wallpaper a room needs, counted in full drops.
- Construction & DIYDrawing Scale ConverterTurn a measurement taken off a scale drawing into the real-world size.
- Construction & DIYPipe Volume and Weight CalculatorLitres per metre, total volume, pipe weight and the weight of what is inside, from the outside diameter and the wall thickness.
- Construction & DIYPlaster and Render CalculatorBags of plaster or render for a wall area at a given thickness.
- Construction & DIYRainwater Harvesting CalculatorRainwater you can collect from a roof in a year, and the average per day.
- Construction & DIYSuspended Ceiling CalculatorPanels, grid runners, edge trim and hangers for a suspended ceiling, from the room size and the panel size.
- Construction & DIYColumn Concrete CalculatorConcrete volume and mass, formwork area, main bars and stirrups for rectangular columns.
- Construction & DIYRoof Tiles CalculatorNumber of tiles for a pitched roof, from the plan dimensions and the pitch angle.
- Construction & DIYU-Value and Insulation CalculatorThermal transmittance and resistance of an insulation layer, from thickness and conductivity.
- Construction & DIYBackfill CalculatorHow much fill a trench needs once the pipe or structure is in, in loose volume, tonnes and truck loads.
- Construction & DIYRebar Weight CalculatorWeight of reinforcement bars from diameter, length and quantity.
- Construction & DIYShelf Sag CalculatorSag of a loaded shelf, its stiffness ratio, the load for a 1:250 limit and the span that would halve the sag.
- Construction & DIYBoard Feet CalculatorBoard feet in a piece of timber, the total for a batch, the volume in cubic metres, cost and rough weight.
- Construction & DIYTile Grout CalculatorKilograms of grout for a tiled area, from tile size, joint width and tile thickness.
- Construction & DIYWaterproofing CalculatorMembrane area, rolls, primer and litres of liquid waterproofing, including the upstand at the walls.
- Construction & DIYDecking Boards CalculatorHow many deck boards a terrace needs, plus total linear metres and joist count.
- Construction & DIYRadiator Output CalculatorThe real heat output of a radiator at your actual flow and return temperatures, against its catalogue rating.
- Construction & DIYRamp Length CalculatorHorizontal run, sloping length and angle of a ramp for a given rise and gradient.
- Construction & DIYWelded Mesh CalculatorSheets, mass per square metre and total weight of reinforcement mesh, with the lap between sheets taken off.
- Construction & DIYWind Load CalculatorDynamic wind pressure and the force on a flat surface, with the overturning moment about its base.
- Construction & DIYDrainage Fall CalculatorTotal fall over a pipe run for a given gradient, in millimetres, percent and mm per metre.
- Construction & DIYUnderfloor Heating Pipe CalculatorMetres of pipe and number of loops for an underfloor heating circuit.
- Construction & DIYFence Posts CalculatorPosts, panels, the exact spacing that results and the concrete needed to set them.
- Construction & DIYGate CalculatorLeaf width, pickets, frame and brace lengths, weight and the load each hinge carries.
- Construction & DIYMulti-Layer Wall R-Value CalculatorTotal thermal resistance and U-value of a three-layer wall, and how much of it the insulation contributes.
- Construction & DIYSkirting Board CalculatorMetres of skirting and number of lengths needed for a room, allowing for doorways.
- Construction & DIYHorizontal Cylindrical Tank Volume CalculatorLitres in a horizontal round tank from the depth of liquid, plus the percentage full.
- Construction & DIYManning Open Channel Flow CalculatorFlow and velocity in a rectangular open channel, with the hydraulic radius and wetted area.
- Construction & DIYWood Movement CalculatorHow much a board changes width as its moisture content changes, with the gap to allow.
- Construction & DIYConcrete Block CalculatorHow many blocks a wall takes, from its area and the block size you are using.
- Construction & DIYCable Sag CalculatorSag, end tension and developed length of a cable or wire strung between two supports at the same height.