I've been doing my own pacing around in a woodland that's for sale.

Each of the 4 sides is of different length and I just can't seem to get the same acreage with my calculations as the official acreage. I wouldn't actually care if I was out by a little bit, but I seem to be out by about 5 acres!

I'm sure I must be doing something wrong and have been sitting here for a while now puzzling over it, so its time to ask!

I've read the practical guide to calculating acreage here: http://www.woodlands.co.uk/blog/practical-guides/how-big-is-an-acre-measuring-your-woodland/ and with that in mind, I noted down my measurements.

Now, I make the sides of the woodland, 280 strides x 116 strides x 255 strides x 240 strides. I've calculated that a stride is about 3 foot, so that gives very roughly 840 ft x 348ft x 720ft x 765 feet.

I've then calculated two areas and added them together, so:

720ft x 348ft = 250,560 square feet

and

120ft x 417ft = 50,040 square feet

= 300,600 square feet.

The woodland for sale is 522,720 square feet, hence, I'm over 222,000 square feet - or over 5 acres out!

I know my paces might be a bit out and the whole exercise was just a quick one to see roughly how big the area was, but now its driving me a bit mad!

Can anyone spot what I am doing wrong?! Answers on a postcard please!