buildcostlab.com
Estimate smarter, then prepare a better quote request
BuildCostLab helps you estimate materials in metric or imperial units, compare buying formats, and prepare a cleaner quote brief. Start with the right calculator, check the assumptions that usually move the number, compare options clearly, and turn the result into something a supplier or installer can price properly.
Estimate - sense-check - compare - brief
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Pick up from the calculators you used recently on this device.
Start with pages people are already searching for
Recent search-demand signals point to skirting or baseboard trim, hardcore or crushed stone, tile backer board, roof felt, paving jointing, paving or pavers, flooring, laminate, pea gravel, loft or attic insulation, and plasterboard or drywall. These quick links give those searches a cleaner path from the homepage.
Search demandJoinery
Skirting Board Calculator
Estimate skirting board lengths, whole boards, and room-perimeter buying quantities before you order MDF, pine, or primed skirting.
Search demandAggregates
Hardcore Calculator
Estimate hardcore volume, tonnes, and bulk-bag buying quantities for driveways, patio bases, shed bases, and general fill work.
Search demandTiles and finishes
Tile Backer Board Calculator
Estimate tile backer board sheets or packs and rough cost for wall and floor prep.
Search demandRoofing
Roof Felt Calculator
Estimate roof felt rolls and rough cost for sheds, garages, and outbuildings.
Search demandOutdoor surfacing
Paving Jointing Compound Calculator
Estimate jointing compound tubs or bags and rough cost for patios and paving joints.
Search demandRoofing
Shed Felt Calculator
Estimate shed felt rolls and rough cost for sheds, summerhouses, and small outbuildings.
Search demandOutdoor surfacing
Paving Calculator
Estimate patio slabs, pavers, coverage, cut waste, and rough material cost for patios, paths, and paved garden areas.
Search demandFlooring
Flooring Calculator
Estimate flooring packs, approximate board counts, waste, and room-fit buying totals for laminate, wood, and vinyl plank installs before you order.
Search demandAggregates
MOT Type 1 Calculator
Estimate MOT Type 1 volume, tonnage, bulk-bag buying quantities, and rough delivery needs for driveways, paths, and compacted sub-base layers.
Search demandFlooring
Laminate Flooring Calculator
Estimate laminate flooring packs, waste, and room-size buying quantities before you order for bedrooms, lounges, hallways, or refresh projects.
Search demandAggregates
Pea Gravel Calculator
Estimate pea gravel volume, bulk bags, tonnage, and rough cost for garden paths, borders, drainage zones, and decorative ground cover.
Search demandInsulation
Loft Insulation Calculator
Estimate loft insulation rolls, coverage area, waste allowance, and rough material cost before you order.
Search demandInterior finishes
Plasterboard Calculator
Estimate plasterboard sheets, board coverage, waste, and rough cost for walls, ceilings, and drylining jobs.
Find the right calculator faster
Search by job, material, or buying task, then filter the library so you can start with the right estimate instead of scrolling through an endless list.
Showing all 97 calculators.
Popular
Decorating
4 guides
Paint Calculator
Estimate paint quantities, tin mixes, and rough material cost for walls, ceilings, and single surfaces.
Popular
Concrete and aggregates
4 guides
Concrete Calculator
Estimate concrete volume and rough material cost for slabs, footings, and post holes.
Popular
Flooring
4 guides
Flooring Calculator
Estimate flooring packs, approximate board counts, waste, and room-fit buying totals for laminate, wood, and vinyl plank installs before you order.
Popular
Tiles and finishes
4 guides
Tile Calculator
Estimate tile count, boxes, waste, and rough material cost for wall and floor tiling.
Popular
Aggregates
4 guides
Gravel Calculator
Estimate gravel volume, tonnage, bulk bags, and rough cost for driveways, decorative areas, and base layers.
Popular
Outdoor surfacing
4 guides
Paving Calculator
Estimate patio slabs, pavers, coverage, cut waste, and rough material cost for patios, paths, and paved garden areas.
Popular
Outdoor timber
4 guides
Decking Calculator
Estimate decking boards, joists, and rough cost for simple rectangular deck builds.
Popular
Boundary work
4 guides
Fence Calculator
Estimate fence panels, posts, concrete, and rough cost for straight fence runs.
Decorating
2 guides
Ceiling Paint Calculator
Estimate ceiling paint quantity, litres, and rough cost from room size and coverage rate.
Decorating
2 guides
Exterior Paint Calculator
Estimate exterior masonry or timber paint quantities and rough cost from wall area and coverage.
Concrete and aggregates
2 guides
Slab Concrete Calculator
Estimate slab concrete volume, order quantity, and rough cost from slab dimensions and depth.
Concrete and aggregates
2 guides
Footing Concrete Calculator
Estimate footing concrete volume, order quantity, and rough cost for trench and strip foundations.
Popular
Flooring
2 guides
Laminate Flooring Calculator
Estimate laminate flooring packs, waste, and room-size buying quantities before you order for bedrooms, lounges, hallways, or refresh projects.
Flooring
2 guides
Vinyl Plank Flooring Calculator
Estimate vinyl plank packs and rough cost from room area and supplier pack coverage.
Landscaping
4 guides
Topsoil Calculator
Estimate topsoil volume, tonnage, bags, and rough cost for beds, borders, and levelling work.
Landscaping
4 guides
Mulch Calculator
Estimate mulch volume, bags, and rough cost for beds and borders.
Landscaping
4 guides
Compost Calculator
Estimate compost volume, bag counts, and rough cost for soil improvement jobs.
Landscaping
4 guides
Bark Calculator
Estimate bark coverage, volume, and bag counts for borders and pathways.
Aggregates
2 guides
Sand Calculator
Estimate sand volume, tonnage, and rough cost for laying and filling jobs.
Aggregates
3 guides
Sharp Sand Calculator
Estimate sharp sand volume, tonnage, and rough cost for screeds, paving, and bedding work.
Aggregates
2 guides
Ballast Calculator
Estimate ballast volume and tonnage for concrete and base applications.
Popular
Aggregates
2 guides
Hardcore Calculator
Estimate hardcore volume, tonnes, and bulk-bag buying quantities for driveways, patio bases, shed bases, and general fill work.
Aggregates
2 guides
Sub-Base Calculator
Estimate sub-base volume, tonnes, and delivered quantity for paving, patios, paths, and driveway foundations before you order.
Popular
Aggregates
3 guides
MOT Type 1 Calculator
Estimate MOT Type 1 volume, tonnage, bulk-bag buying quantities, and rough delivery needs for driveways, paths, and compacted sub-base layers.
Floor prep
2 guides
Screed Calculator
Estimate screed volume and rough cost for floor levelling jobs.
Floor prep
2 guides
Self-Levelling Compound Calculator
Estimate self-levelling compound bags and rough cost from floor area and product coverage.
Floor prep
2 guides
Underlay Calculator
Estimate underlay packs or rolls and rough cost for flooring installs.
Floor prep
2 guides
DPM Calculator
Estimate damp-proof membrane rolls and rough cost for floor areas.
Insulation
4 guides
Insulation Board Calculator
Estimate insulation boards and rough cost for wall, floor, and roof insulation.
Popular
Insulation
4 guides
Loft Insulation Calculator
Estimate loft insulation rolls, coverage area, waste allowance, and rough material cost before you order.
Insulation
4 guides
Acoustic Insulation Calculator
Estimate acoustic insulation slabs or rolls for partitions and floors.
Popular
Interior finishes
3 guides
Plasterboard Calculator
Estimate plasterboard sheets, board coverage, waste, and rough cost for walls, ceilings, and drylining jobs.
Interior finishes
2 guides
Drywall Screws Calculator
Estimate drywall screw boxes using wall or ceiling coverage as the buying driver.
Interior finishes
2 guides
Joint Compound Calculator
Estimate joint compound tubs or bags from plasterboard coverage area.
Wall finishes
4 guides
Skim Plaster Calculator
Estimate skim plaster bags and rough cost for wall and ceiling coverage.
Wall finishes
4 guides
Render Calculator
Estimate render coverage, bags, and rough cost for external walls.
Wall finishes
2 guides
Plaster Bead Calculator
Estimate plaster bead lengths and rough cost for corners, reveals, and stop ends.
Masonry
4 guides
Mortar Calculator
Estimate mortar volume and rough cost for brick and block laying jobs.
Masonry
4 guides
Brick Calculator
Estimate brick counts and rough cost from wall area and coverage assumptions.
Masonry
4 guides
Block Calculator
Estimate concrete or aerated block counts and rough cost from wall area.
Concrete reinforcement
2 guides
Rebar Calculator
Estimate reinforcement bar lengths, pieces, and rough cost for common jobs.
Concrete reinforcement
2 guides
Mesh Calculator
Estimate reinforcing mesh sheets and rough cost from slab area.
Concrete reinforcement
2 guides
Concrete Fibre Calculator
Estimate concrete fibre bags and rough cost from slab area and product coverage.
Roofing
4 guides
Roofing Shingle Calculator
Estimate roofing shingle bundles and rough cost from roof coverage area.
Roofing
4 guides
Roof Felt Calculator
Estimate roof felt rolls and rough cost for sheds, garages, and outbuildings.
Roofing
4 guides
Roof Batten Calculator
Estimate batten lengths, pieces, and rough cost for roof work.
Roofline
2 guides
Fascia Calculator
Estimate fascia board lengths and rough cost from roofline runs.
Roofline
2 guides
Soffit Calculator
Estimate soffit board quantities and rough cost for roof edges.
Popular
Roofline
2 guides
Gutter Calculator
Estimate gutter lengths, stock pieces, joints, waste allowance, and rough material cost for simple roofline runs.
Roofline
2 guides
Downpipe Calculator
Estimate downpipe lengths and pieces for drainage runs.
Decorating
3 guides
Wallpaper Calculator
Estimate wallpaper rolls and rough cost for wall coverage.
Decorating
3 guides
Primer Calculator
Estimate primer quantities and rough cost for walls, ceilings, timber, and prep coats.
Decorating
2 guides
Filler Calculator
Estimate wall filler tubs or bags and rough cost from the area being repaired or skimmed over.
Popular
Joinery
2 guides
Skirting Board Calculator
Estimate skirting board lengths, whole boards, and room-perimeter buying quantities before you order MDF, pine, or primed skirting.
Joinery
2 guides
Architrave Calculator
Estimate architrave lengths and rough cost for doors and openings.
Joinery
2 guides
Coving Calculator
Estimate coving lengths, whole pieces, and ceiling-perimeter buying quantities before you order lightweight or plaster coving.
Exterior finishes
3 guides
Cladding Calculator
Estimate cladding boards or panels and rough cost from wall coverage.
Exterior finishes
2 guides
Masonry Sealer Calculator
Estimate masonry sealer quantities and rough cost for brick, block, and rendered walls.
Popular
Garden surfaces
2 guides
Turf Calculator
Estimate turf rolls, lawn area, waste allowance, and rough material cost for gardens and replacement lawns.
Garden surfaces
2 guides
Grass Seed Calculator
Estimate grass seed packs and rough cost from lawn area.
Garden surfaces
2 guides
Artificial Grass Calculator
Estimate artificial grass rolls and rough cost from garden coverage area.
Garden surfaces
3 guides
Weed Membrane Calculator
Estimate weed membrane rolls and rough cost for borders, paths, and under-surface prep.
Landscaping
2 guides
Sleepers Calculator
Estimate landscaping sleepers and rough cost from total run lengths.
Landscaping
2 guides
Edging Calculator
Estimate garden edging lengths, pieces, and rough cost.
Landscaping
2 guides
Kerb Calculator
Estimate kerb unit counts and rough cost from total run length.
Drainage
2 guides
Drainage Pipe Calculator
Estimate drainage pipe lengths, stock pieces, waste allowance, and practical buying totals for trench runs before you order fittings and chambers.
Drainage
2 guides
Ducting Calculator
Estimate ducting lengths and rough cost for service runs.
Drainage
2 guides
Geotextile Membrane Calculator
Estimate geotextile membrane rolls, overlaps, and covered area for driveways, french drains, trenches, and separating aggregate layers.
Drainage
2 guides
French Drain Gravel Calculator
Estimate french drain gravel volume, tonnes, bulk bags, and practical trench-fill buying totals before you order aggregate for the run.
Drainage
2 guides
Pipe Bedding Calculator
Estimate pipe bedding volume, tonnes, and bulk-bag buying quantities for drainage trenches before you order sand or gravel.
Tiles and finishes
4 guides
Tile Adhesive Calculator
Estimate tile adhesive bags and rough cost from wall or floor tile area.
Tiles and finishes
3 guides
Tile Grout Calculator
Estimate tile grout quantities and rough cost from tiled area and product coverage.
Tiles and finishes
4 guides
Tile Backer Board Calculator
Estimate tile backer board sheets or packs and rough cost for wall and floor prep.
Popular
Aggregates
3 guides
Pea Gravel Calculator
Estimate pea gravel volume, bulk bags, tonnage, and rough cost for garden paths, borders, drainage zones, and decorative ground cover.
Aggregates
2 guides
Driveway Gravel Calculator
Estimate driveway gravel volume, bulk bags, tonnage, and rough cost from area and installed depth.
Outdoor surfacing
3 guides
Paving Sand Calculator
Estimate bedding sand volume, tonnage, and rough cost for patios, slabs, and block paving prep.
Outdoor surfacing
3 guides
Paving Jointing Compound Calculator
Estimate jointing compound tubs or bags and rough cost for patios and paving joints.
Decking
2 guides
Deck Screws Calculator
Estimate deck screw boxes and rough cost from deck area and a practical fixing rate.
Decking
2 guides
Deck Joist Calculator
Estimate deck joist lengths, buying pieces, and rough cost from the total joist run.
Boundary work
2 guides
Fence Post Calculator
Estimate fence post counts and rough cost from total fence run and post spacing.
Boundary work
2 guides
Gravel Board Calculator
Estimate gravel board lengths, buying pieces, and rough cost from total fence run.
Roofline
2 guides
Gutter Guard Calculator
Estimate gutter guard lengths, pieces, and rough cost for roof edge protection.
Roofing
5 guides
Shed Felt Calculator
Estimate shed felt rolls and rough cost for sheds, summerhouses, and small outbuildings.
Exterior finishes
3 guides
Wood Stain Calculator
Estimate wood stain quantities and rough cost for fences, cladding, sheds, and exterior timber.
Interior finishes
3 guides
Plasterboard Adhesive Calculator
Estimate plasterboard adhesive bags and rough cost for dot-and-dab wall installs.
Popular
Project costs
6 guides
Patio Cost Calculator
Estimate patio materials, labour, extras, and rough total cost from area, region, and contingency.
Popular
Project costs
6 guides
Driveway Cost Calculator
Estimate driveway materials, labour, prep, and rough total cost from area, region, and contingency.
Project costs
6 guides
Decking Cost Calculator
Estimate decking materials, labour, framing extras, and rough total cost from deck area and finish level.
Project costs
6 guides
Fence Cost Calculator
Estimate fence materials, labour, post-setting extras, and rough total cost from measured run and finish choice.
Project costs
6 guides
Room Painting Cost Calculator
Estimate room painting materials, labour, prep, and rough total cost from room area, region, and contingency.
Project costs
6 guides
Plastering Cost Calculator
Estimate plastering materials, labour, prep, and rough total cost from wall or ceiling area and finish allowance.
Project costs
6 guides
Roofing Cost Calculator
Estimate roofing materials, labour, edge details, and rough total cost from roof area, region, and contingency.
Project costs
6 guides
Flooring Cost Calculator
Estimate flooring materials, labour, floor prep, and rough total cost from room area, finish route, and contingency.
Project costs
6 guides
Tiling Cost Calculator
Estimate tiling materials, labour, prep, and rough total cost from tiled area, region, and complexity.
Project costs
6 guides
Insulation Cost Calculator
Estimate insulation materials, labour, prep, and rough total cost from covered area, product route, and contingency.
Project costs
6 guides
Render Cost Calculator
Estimate render materials, labour, prep, and rough total cost from wall area, region, and finish level.
Project costs
6 guides
Garden Wall Cost Calculator
Estimate garden wall materials, labour, footing extras, and rough total cost from wall area, region, and contingency.
No exact match yet
Try a broader material, project type, or buying term. Searching for words like packs, driveway, plasterboard, paint, or quote usually works well.
How BuildCostLab helps you plan the job
The site is designed around the practical workflow people actually need: estimate the quantity or budget, pressure-test the weak assumptions, compare routes where necessary, and package the result into a cleaner brief.
1. Start with a usable estimate
Pick the calculator that matches the real material or project question so the starting number is already in the right format for buying or budgeting.
2. Check what could change it
Use the guide links, support notes, and range logic to see where waste, labour, access, pack size, or finish level could move the real total.
3. Brief suppliers more clearly
Use the quote-ready tools and checklist so every builder or merchant is pricing the same scope, assumptions, and exclusions.
Popular starting points
These are some of the most useful pages for early planning, whether you are buying materials, checking a budget, or preparing a quote brief.
Flooring Calculator
Estimate flooring packs, approximate board counts, waste, and room-fit buying totals for laminate, wood, and vinyl plank installs before you order.
Sense-check the estimatePaving Calculator
Estimate patio slabs, pavers, coverage, cut waste, and rough material cost for patios, paths, and paved garden areas.
Sense-check the estimateLaminate Flooring Calculator
Estimate laminate flooring packs, waste, and room-size buying quantities before you order for bedrooms, lounges, hallways, or refresh projects.
Sense-check the estimateHardcore Calculator
Estimate hardcore volume, tonnes, and bulk-bag buying quantities for driveways, patio bases, shed bases, and general fill work.
Sense-check the estimateMOT Type 1 Calculator
Estimate MOT Type 1 volume, tonnage, bulk-bag buying quantities, and rough delivery needs for driveways, paths, and compacted sub-base layers.
Sense-check the estimateLoft Insulation Calculator
Estimate loft insulation rolls, coverage area, waste allowance, and rough material cost before you order.
Sense-check the estimatePlasterboard Calculator
Estimate plasterboard sheets, board coverage, waste, and rough cost for walls, ceilings, and drylining jobs.
Sense-check the estimateRoof Felt Calculator
Estimate roof felt rolls and rough cost for sheds, garages, and outbuildings.
Sense-check the estimateSkirting Board Calculator
Estimate skirting board lengths, whole boards, and room-perimeter buying quantities before you order MDF, pine, or primed skirting.
Sense-check the estimateTile Backer Board Calculator
Estimate tile backer board sheets or packs and rough cost for wall and floor prep.
Sense-check the estimatePea Gravel Calculator
Estimate pea gravel volume, bulk bags, tonnage, and rough cost for garden paths, borders, drainage zones, and decorative ground cover.
Sense-check the estimatePaving Jointing Compound Calculator
Estimate jointing compound tubs or bags and rough cost for patios and paving joints.
Sense-check the estimateShed Felt Calculator
Estimate shed felt rolls and rough cost for sheds, summerhouses, and small outbuildings.
Sense-check the estimateBrowse by project type
Open a project hub when the job includes linked materials, supporting guides, and a wider quote-prep path rather than one single calculation.
Paint Estimating
Estimate paint quantities, tin mixes, and rough material cost for walls, ceilings, and single surfaces.
Open Project HubConcrete Estimating
Estimate concrete volume and rough material cost for slabs, footings, and post holes.
Open Project HubFlooring Estimating
Estimate flooring packs, approximate board counts, waste, and room-fit buying totals for laminate, wood, and vinyl plank installs before you order.
Open Project HubPaving and Patio Estimating
Estimate patio slabs, pavers, coverage, cut waste, and rough material cost for patios, paths, and paved garden areas.
Open Project HubDecking Estimating
Estimate decking boards, joists, and rough cost for simple rectangular deck builds.
Open Project HubAggregate and Base Estimating
Estimate hardcore volume, tonnes, and bulk-bag buying quantities for driveways, patio bases, shed bases, and general fill work.
Open Project HubAggregate and Base Estimating
Estimate MOT Type 1 volume, tonnage, bulk-bag buying quantities, and rough delivery needs for driveways, paths, and compacted sub-base layers.
Open Project HubProject Cost Estimating
Estimate driveway materials, labour, prep, and rough total cost from area, region, and contingency.
Open Project HubMethodology
See how estimates are built
Read the calculator methodology for formulas, waste logic, conversions, and why planning ranges matter.
Editorial standards
Understand how pages are reviewed
The editorial policy explains source hierarchy, update standards, and how corrections are handled.
Planning use
Use estimates as planning aids
BuildCostLab is designed for planning and quote preparation, not fixed promises. Always confirm live prices, measurements, and site conditions.
Move from estimate to quote-ready brief
Use the calculator result as your starting number, then turn it into a cleaner builder or supplier request with the quote checklist and contact page.