All 4 fences were created on Golden Valley at 20:00 09/06/2010 (UTC+1), using 20QL components and 20 carpentry/masonry skill, resulting in 21QL fences.
Multiple characters were used for simultaneous construction. Due to the extreme difficulty the tall stone wall was completed last, but still within 10 minutes of the other fences.
Note: [[Golden Valley]] decays 3x faster than other servers.
== Results ==
We have learned that:* The difference in decay between fence types is negligible.* Wurm has nonlinear decay. The more damaged an item is, the faster it decays, so repair often. All times are UTC+1. See below for a graph.
{| border="1" cellspacing="0" cellpadding="2" style="text-align:center;"
| 16.567505
| 17.138254
|-
| 2010_07_16 01:43
| 18.87442
| 22.462414
| 19.4614
| 21.248388
|-
| 2010_07_19 02:30
| 21.248388
| 24.319668
| 21.248388
| 23.6956
|-
| 2010_07_21 03:45
| 22.462414
| 24.948881
| 23.076555
| 24.948881
|-
| 2010_07_22 00:10
| 23.076555
| 26.223269
| 24.319668
| 25.58337
|-
| 2010_07_23 17:24
| 24.319668
| 27.519861
| 24.948881
| 26.868717
|-
| 2010_07_26 03:00
| 25.58337
| 28.839859
| 26.868717
| 28.839859
|-
| 2010_07_30 01:20
| 28.176855
| 32.251175
| 29.50904
| 31.555445
|-
| 2010_07_31 01:30
| 28.839859
| 32.954052
| 30.184574
| 32.251175
|-
| 2010_08_02 00:25
| 31.555445
| 35.10785
| 32.954052
| 35.10785
|-
| 2010_08_08 14:10
| 36.583878
| 39.642796
| 38.09467
| 39.642796
|-
| 2010_08_10 16:00
| 38.09467
| 41.23115
| 39.642796
| 42.041428
|-
| 2010_08_20 14:40
| 47.159336
| 49.910625
| 50.861305
| 50.861305
|-
| 2010_08_26 03:10
| 52.81895
| 56.99464
| 55.91449
| 58.10192
|-
| 2010_09_02 17:50
| 64.131584
| 65.45919
| 65.45919
| 71.350174
|-
| 2010_09_05 16:00
| 69.774704
| 71.350174
| 68.273766
| 76.66466
|-
| 2010_09_08 14:30
| 74.77676
| 78.7053
| 73.01228
| 86.31562
|}
http://systemparadox.co.uk/~simon/fences/fences.png
== A second experiment ==
About 3 years after this first experiment, a second experiment was set up on Deliverance. 6 different fences of 20ql were built: Woven Fence, Crude Wooden Fence, Wooden Fence, Low Stone Wall, Tall Stone Wall and Iron Fence. The damage was noted each day for 6 months, and here are the results, collected between February and July 2013 by [http://www.wurmpedia.com/index.php/Player:Yaga[Yaga]]:
[[Image:FenceDecayFinal.jpg|link=http://img94.imageshack.us/img94/926/zo6r.jpg|Click here for results]]
The previous results could be confirmed: within statistical limits all fence types show the same rate of decay. (The minor spread at higher damages was mainly due to slight ql differences.)
[[Category:Fences]]