Question 1

Can I print the roof pitch angle?

Accepted Answer

Yes. Use the Letter or A4 PDF links, or print the HTML table directly. The printable view removes navigation and keeps the title, table, source note, and brand.

Question 2

Is the table available without JavaScript?

Accepted Answer

Yes. Every row is rendered as ordinary HTML with a caption and scoped headers. JavaScript is not required to read or quote the values.

Question 3

Can I use the values as a final structural design?

Accepted Answer

No. Conversion charts are direct references, but span and member-size charts are planning examples. Current code tables, species, grade, loads, connections, and professional review govern structural work.

Question 4

How often is the chart reviewed?

Accepted Answer

The review date is shown on the page and in the Dataset schema. Source-linked code tables are checked when their governing publication changes.

Pitch	Angle	Slope factor	Rafter length per 12 in run
1/12	4.76°	1.0035	12.042 in
2/12	9.46°	1.0138	12.166 in
3/12	14.04°	1.0308	12.369 in
4/12	18.43°	1.0541	12.649 in
5/12	22.62°	1.0833	13.000 in
6/12	26.57°	1.1180	13.416 in
7/12	30.26°	1.1577	13.892 in
8/12	33.69°	1.2019	14.422 in
9/12	36.87°	1.2500	15.000 in
10/12	39.81°	1.3017	15.620 in
11/12	42.51°	1.3566	16.279 in
12/12	45.00°	1.4142	16.971 in
13/12	47.29°	1.4743	17.692 in
14/12	49.40°	1.5366	18.439 in
15/12	51.34°	1.6008	19.209 in
16/12	53.13°	1.6667	20.000 in
17/12	54.78°	1.7341	20.809 in
18/12	56.31°	1.8028	21.633 in
19/12	57.72°	1.8727	22.472 in
20/12	59.04°	1.9437	23.324 in
21/12	60.26°	2.0156	24.187 in
22/12	61.39°	2.0883	25.060 in
23/12	62.45°	2.1619	25.942 in
24/12	63.43°	2.2361	26.833 in

Roof Pitch Angle Chart

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