Home & Garden calculators

Materials for building, DIY and landscaping projects.

Estimate loose sand for a garden bed, play area or landscaping project.

Work out how much bark chipping mulch covers your garden beds at your chosen depth.

Plan a rectangular tree planting grid using your chosen row spacing, tree spacing and edge setback.

Work out how much concrete you need for a slab, patio, shed base or footing — in cubic yards, cubic metres and pre-mix bags.

Calculate how many tiles you need for a floor, wall or splashback, including a cutting and breakage allowance.

Find out how much mulch or bark you need to cover a flower bed, border or play area.

Work out the volume and approximate weight of topsoil needed for a new lawn, raised bed or levelling job.

Calculate how much gravel, pea shingle or aggregate you need for a driveway, path or drainage area.

Find the number of wallpaper rolls needed for a room or feature wall, allowing for pattern repeat.

Work out how much paint you need for a room, including multiple coats and deductions for doors and windows.

Find how many deck boards you need for a new deck, based on its size and the boards you plan to use.

Work out how many bricks you need for a single-skin wall, including mortar joints and a breakage allowance.

Find how many plasterboard (drywall) sheets you need for walls or a ceiling.

Work out the cement bags and sand needed for a floor screed, render or mortar bed.

Calculate the paving slabs, sub-base and bedding sand for a new patio.

Find how many rolls of turf, sod or artificial grass you need for a new lawn.

Calculate litres or gallons of fence paint or stain for your garden fence.

Find how many plants you need for a bed or border at a given spacing.