Measuring Guide - Turf Base. Measuring the area you want to cover with turf base, we have added some information here that may help you. It is very important that you order approximately 5% - 10% extra turf base for filling odd spaces and to cover the inaccuracy of measurements. To measure the area of your planned lawn, its a good idea to make a sketch to assist you with your calculations, multply the average length by the average width to determine the amount of turf base you will need and the depth that you require. Rectangle & Square What units are you measuring in: Meters Feet Yards Finding the area in a rectangle is simple. Multiply the short side by the long side. No fancy tricks, just length times width times factor. Its the same with the square area, multiply the two sides then the factor. Rectangle = Length x Width x 0.025 Square = Length x Width x 0.025 The factor used in the calculations is 0.025 and all values are rounded up to the nearest full bag Length = Width = Total =  Sq Meters Circles What units are you measuring in: Meters Feet Yards For a circle take the radius (that's half the distance across the middle of the circle) and square it. If the circle is 20 feet across take half of that (10) and multiply it by its self. Circle's Area = 3.14 x Radius² For example: 10 x 10 = 100, or 10² = 100, you would now multiply it with 3.14, which is 100 x 3.14 = 314, therefore the area of a 20 foot circle would be 314 square feet. To convert to the number of bags multiply by the factor. The factor used in the calculations is 0.025 and all values are rounded up to the nearest full bag Radius = Total =  Sq Meters Triangles What units are you measuring in: Meters Feet Yards Right-Angled Triangles are kind of like rectangles, taking calculations form a right angle multiply a x b then divide by 2. This only works with RIGHT-ANGLED triangles. That means that one corner has to be square (90°). Triangle's Area = (a x b) ÷ 2 For example: a = 4 and b = 6, then your calculations would be 4 x 6 = 24 The area of the triangle is half of 24, 24 ÷ 2 = 12 To convert to the number of bags multiply by the factor. The factor used in the calculations is 0.025 and all values are rounded up to the nearest full bag A = B = Total =  Sq Meters If your triangle isn't right-angled you need to find the area of an irregular triangle and cut it into two pieces. Start at the corner opposite the longest side. Go straight towards the long side, making two right-angled triangles. Now find the area for each one of the little triangles. Add them together to get the total area of the triangle. Irregular Shapes If your area is of an unusual shape, draw a sketch of it and then by using the four shapes above you can break it up into smaller shapes and calculate from there! If you are unsure, please don't hesitate to contact us for advise Tel: 0800 0374425 Home - Grown for Success - Harvesting and Distribution - Laid to Last - Aftercare - Contact Us Copyright © Next Day Turf.   Part of the Total Turfing Ltd group of companies Website designed and developed by IJ Webdesign