Work out how much grass seed you need for a new lawn or overseeding based on lawn area and sowing rate.
Always check the rate printed on your seed bag, as it varies by grass mixture.
For a brand new lawn allow roughly 35 grams per square metre. For overseeding a thin lawn, around 20 grams per square metre is usually enough.
Early autumn and mid spring are ideal, when the soil is warm and moist but not baked or frozen.
It is worth buying a little extra to patch any thin areas a few weeks after sowing.
Around 35 g per m² for a new lawn and about 25 g per m² for overseeding an existing lawn. The calculator works out the total for your area.
Spring and early autumn are ideal, when the soil is warm and moist. Avoid sowing in frost or the height of summer.
Calculate the volume and weight of gravel needed for driveways, paths, and landscaping.
OpenCalculate the tonnage and volume of any aggregate – gravel, sand, ballast, MOT or crushed stone.
OpenCalculate how much MOT Type 1 sub-base aggregate you need in tonnes and cubic metres.
Open