Decra Plus Tile Estimating Guide
- The Tables below are for estimating purposes only. The figures quoted are based on nominal tile dimensions and are subject to normal manufacturing tolerances.
- Count all fractions of tiles as whole tiles.
- The table assume a simple mono-pitch or duo-pitch roof construction. More complicated roof structures will entail an additional wastage. We suggest an additional estimating figure of approx. 1.32 tiles x total linear metres of hips and valleys
Alternativley If This All Seems To Much Hassle
Why not make use of our free estimating service
Rafter length to suit fullcourses
of tile including fascia* |
Number of tile courses
required |
Roof length using
barge covers |
Number of tiles
required |
| 0.330 |
1 |
1.344 |
1 |
| 0.695 |
2 |
2.604 |
2 |
| 1.063 |
3 |
3.884 |
3 |
| 1.431 |
4 |
5.124 |
4 |
| 1.799 |
5 |
6.384 |
5 |
| 2.167 |
6 |
7.644 |
6 |
| 2.535 |
7 |
8.904 |
7 |
| 2.903 |
8 |
10.164 |
8 |
| 3.271 |
9 |
11.424 |
9 |
| 3.639 |
10 |
12.684 |
10 |
| 4.007 |
11 |
13.944 |
11 |
| 4.375 |
12 |
15.204 |
12 |
| 4.743 |
13 |
16.464 |
13 |
| 5.111 |
14 |
17.724 |
14 |
| 5.479 |
15 |
18.984 |
15 |
| 5.847 |
16 |
20.244 |
16 |
| 6.245 |
17 |
21.504 |
17 |
| 6.583 |
18 |
22.764 |
18 |
| 6.951 |
19 |
24.024 |
19 |
| 7.319 |
20 |
25.284 |
20 |
| 7.687 |
21 |
26.544 |
21 |
| 8.055 |
22 |
27.804 |
22 |
| 8.423 |
23 |
29.064 |
23 |
| 8.791 |
24 |
30.324 |
24 |
| 9.159 |
25 |
31.584 |
25 |
| 9.527 |
26 |
32.844 |
26 |
| 9.895 |
27 |
34.104 |
27 |
| 10.263 |
28 |
35.364 |
28 |
| 10.631 |
29 |
36.624 |
29 |
| 10.999 |
30 |
37.884 |
30 |
| 11.367 |
31 |
39.144 |
31 |
| 11.735 |
32 |
40.404 |
32 |
.