DIY Project Calculators
Professional-grade estimators for your home improvement projects. Save time, reduce waste, and budget effectively with our precise calculation tools.
Walls & Ceilings
Paint Calculator
Calculate exactly how much paint you need for walls and ceilings. Adjust for doors, windows, and number of coats to avoid waste and overspending
Wallpaper Calculator
Work out how many rolls of wallpaper you need based on wall dimensions and pattern repeat, helping you avoid shortfalls and reduce leftover waste.
Plasterboard / Drywall
Calculate the number of plasterboard sheets needed for walls or ceilings, plus the screws and joint tape required, for accurate material ordering.
Stud Wall Framework
Calculate the timber needed for a stud wall partition, including plates, studs, and noggins, based on your wall dimensions and stud spacing choice.
Insulation Estimator
Calculate the number of insulation rolls or batts needed for lofts or walls.
Plastering Calculator
Calculate the bags of backing plaster and multi-finish needed for a wall, based on standard bag coverage and your required plaster thickness.
Skimming Calculator
Estimate the bags of multi-finish plaster needed to skim a wall or ceiling, based on a standard two-coat application, for accurate material ordering.
Floors & Tiles
Flooring Calculator
Estimate the flooring material you need for laminate, vinyl, or wood floors, including standard wastage allowances, to get accurate pack quantities.
Tile Calculator
Calculate the number of wall or floor tiles needed for your project. Adjust for tile size and grout line width to get an accurate material count.
Masonry
Concrete Calculator
Calculate the volume of concrete needed for slabs, footings, or post holes, and estimate the number of pre-mixed bags required for your project.
Brick Calculator
Estimate the number of bricks or blocks needed for a wall, adjusting for mortar joint width and wall thickness to get an accurate material count.
Mortar Mix
Calculate the sand and cement needed for masonry mortar, getting the right mix ratio and quantities for bricklaying or pointing projects easily.
Rendering Calculator
Estimate the render needed for external walls, covering both the scratch coat and the top coat, to plan your bag quantities before you start work.
Repointing Mortar
Calculate the mortar volume needed for repointing brickwork based on joint size, helping you order the right sand and cement for a lasting repair.
Outdoor & Garden
Decking Calculator
Calculate the decking boards, joists, and screws needed for your new patio deck, helping you order the right amount of timber for a tidy finish.
Fencing Calculator
Estimate the fence panels, posts, gravel boards, and postcrete bags needed for your garden boundary, so you can order materials with confidence.
Patio & Paving Calculator
Calculate the number of paving slabs and the volume of sand and cement sub-base needed for your patio, helping you plan your outdoor space well.
Mulch & Topsoil
Calculate the volume of mulch, bark, or topsoil needed for garden beds and borders based on area and depth, so you order the right amount in bulk
Shed Base
Calculate the materials needed for your shed base, whether a concrete slab or timber frame design, so you build on solid, well-planned foundations.
Fittings & Heating
Radiator BTU
Estimate the BTU output required for a room based on its dimensions, window types, and wall exposure, helping you choose the right radiator size.
Kitchen Cabinets
Estimate how many standard wall and base kitchen units will fit in your layout, helping you plan cabinet placement before ordering your kitchen.