Plan turf and fabric around shapes, joins and exclusions

A garden area often contains trees, paths, curves and planting beds. Measure the intended coverage as a set of simple shapes, then sketch how rolls or pieces will fit. A rounded area result alone cannot decide which offcuts are reusable.

Establish the net turf area

For an illustrative 8 × 5 m rectangle with a 2 × 3 m unturfed bed, the net area is 34 m². If a selected cutting allowance is 5%, the order basis becomes 35.7 m². Use the actual supplier's piece or roll coverage to calculate the purchase quantity.

Check curves and small strips

Draw the direction of the rolls and note narrow edges. A short piece might fit one corner but be unsuitable elsewhere. The allowance should reflect this arrangement, not a fixed percentage applied without looking at the shape.

Lay out fabric separately

An illustrative 1 m-wide roll with a 0.1 m side lap has a simplified repeating effective width of 0.9 m. Over 20 m, that is 18 m² before end laps and cutting. Check the actual lap and fastening requirements of the selected product; different applications may need different arrangements.

Keep preparation outside the coverage count

Ground preparation, soil improvement, drainage and establishment requirements are separate from the area arithmetic. A turf or fabric calculator cannot determine the appropriate garden system. List fixing pins, edging and other accessories separately when the specification requires them.

Found a measurement or calculation issue? Send the example and your correction.