Work out exactly what materials you need for your project

Estimate the paving slabs, sub-base and sharp sand needed for a patio area.

Calculate decking boards, joists, posts, screws and ground preparation materials for a complete deck build.

Calculate the core materials needed for a new fence line, including panels, posts and post-mix.

Estimate the core materials for a block-paved driveway including sub-base and bedding sand.

Calculate concrete and ground preparation materials for a shed base or slab.

Estimate structural timber and sheet materials for a simple lean-to roof project.

Work out concrete volume in cubic metres and ballast requirements.

Calculate mortar volume and a practical sand and cement breakdown for brickwork or blockwork.

Estimate how many bricks or blocks you need for a given wall size.

Estimate brick slips and mortar coverage for walling projects using a standard wall-area approach.

Calculate roof tile quantities, underlay area and batten lengths for a simple pitched roof plan.

Calculate sand or aggregate volume, tonnage and bulk bags from dimensions and depth.

Calculate screed volume, sand and cement for a floor area and chosen screed depth.

Calculate plasterboard sheets and skim plaster requirements from a wall or ceiling area.

Calculate bricks or blocks, mortar, sand, cement and wall ties for a structural or garden wall.

Calculate block quantities and mortar for single-skin blockwork walls.

Calculate concrete volume, excavation and ballast for foundation trenches and footings.

Estimate damp-proof course and a practical lintel size allowance for walls and openings.

Calculate mesh sheets and reinforcement allowance for concrete slabs and pads.

Calculate bulk gravel volume and approximate tonnes.

Calculate Type 1 sub-base requirements from area, depth and a standard bulk density.

Calculate spoil volume and a practical muck-away tonnage from excavated dimensions.

Calculate paving slabs and bedding volume from area and chosen slab size.

Calculate block paving quantity plus bedding and sub-base materials for a paved area.

Estimate aggregate and resin kit quantities for resin bound surfacing.

Calculate asphalt or tarmac tonnage for paths, drives and paved areas.

Calculate sleeper quantities for raised beds, retaining edges and garden walls.

Calculate edging stones or kerbs for patios, paths and driveway borders.

Estimate drainage gravel for trenches, soakaways and backfill zones.

Calculate soakaway crate quantity, excavation and membrane for rainwater drainage projects.

Calculate topsoil or compost needs from bed area and chosen depth.

Calculate turf rolls and a practical topsoil allowance for a new lawn area.

Calculate mulch or bark coverage volume and number of bags for beds and borders.

Calculate the materials for a practical garden decking build using standard joist and post spacing.

Calculate soil and compost volumes for raised beds and edible planters.

Estimate complete fill materials for planters, troughs and large pots.

Calculate decorative stone or pebbles for borders, paths and planted areas.

Estimate artificial grass, jointing accessories and sub-base for a lawn installation.

Calculate materials for a small retaining wall including blocks and drainage backfill.

Calculate compost quantities for beds, borders and planting areas.

Calculate paint quantity for a room based on wall area and number of coats.

Calculate wallpaper rolls from wall dimensions and your chosen roll size.

Calculate tile count, adhesive and grout from total area and tile size.

Calculate plasterboard sheets and skim plaster requirements from a wall or ceiling area.

Use load current and cable run length to get a simple cable size recommendation.

Calculate laminate packs, underlay and waste allowance for a room floor.

Calculate skirting board lengths, lengths-to-buy and fixings for a room.

Calculate architrave lengths for door openings and convert them into stock board lengths.

Calculate tiles, adhesive and grout for splashback areas behind worktops and hobs.

Calculate how much paint you need for a ceiling area over one or more coats.

Calculate loft insulation coverage and number of rolls from total loft area.

Calculate loft boarding quantities from the usable loft area and board size.

Calculate rigid floor insulation board quantities from total floor area.

Calculate rigid wall insulation board quantities from wall area.

Estimate room heat requirement in BTU using room dimensions and a simple heat-load factor.

Calculate batten courses and total batten length for a roof slope.

Calculate roofing felt or membrane coverage for roof slopes and boarded areas.

Calculate loft boards and support legs for raised loft storage platforms.

Calculate pipe insulation lengths and tube quantities for common domestic pipe runs.

Calculate underfloor heating pipe loops and coverage for rooms and open-plan spaces.