Header Span (ft) | Header Size (in) | Load Capacity (lbs) |
---|---|---|
6 | 2x6 | 1,200 |
8 | 2x8 | 1,800 |
10 | 2x10 | 2,400 |
12 | 2x12 | 3,000 |
14 | 2x14 | 3,600 |
16 | 2x16 | 4,200 |
Header Span (ft) | Doubled Header Size (in) | Load Capacity (lbs) |
---|---|---|
6 | 2x6 + 2x6 | 2,400 |
8 | 2x8 + 2x8 | 3,600 |
10 | 2x10 + 2x10 | 4,800 |
12 | 2x12 + 2x12 | 6,000 |
14 | 2x14 + 2x14 | 7,200 |
16 | 2x16 + 2x16 | 8,400 |
Header Span (ft) | Tripled Header Size (in) | Load Capacity (lbs) |
---|---|---|
6 | 2x6 + 2x6 + 2x6 | 3,600 |
8 | 2x8 + 2x8 + 2x8 | 5,400 |
10 | 2x10 + 2x10 + 2x10 | 7,200 |
12 | 2x12 + 2x12 + 2x12 | 9,000 |
14 | 2x14 + 2x14 + 2x14 | 10,800 |
16 | 2x16 + 2x16 + 2x16 | 12,600 |
Header size is directly related to its span (length) and load bearing capacity.
Single headers are typically used for spans up to 12 feet. Doubled headers are used for spans up to 16 feet, and tripled headers are used for spans over 16 feet.
To determine the required header size, consider:
Pros:
Cons:
1. What is the recommended overhang for headers?
A: Typically, headers are sized to extend at least 6 inches beyond the supporting walls.
2. Can I use multiple shorter headers instead of a single long header?
A: Yes, but it is not recommended. Multiple headers can create unnecessary joints and potential weak points.
3. What type of wood is best for headers?
A: Pressure-treated lumber or other rot-resistant wood is recommended for headers that will be exposed to moisture.
4. How far apart should headers be spaced?
A: Headers should be spaced at intervals no greater than 24 inches on center.
5. How much weight can a 2x12 header hold?
A: A single 2x12 header can hold up to 3,000 lbs over a span of 12 feet.
6. How far can a 2x10 header span?
A: A single 2x10 header can span up to 10 feet with a load capacity of 2,400 lbs.
Story 1:
A homeowner decided to build a custom treehouse for his children. After careful planning, he purchased all the necessary materials, including the headers. However, he made a crucial mistake: he miscalculated the span of the headers. As a result, when he installed the headers, they sagged under the weight of the treehouse. Fortunately, no one was injured, but the homeowner had to quickly install additional support to prevent further damage.
Lesson: Always accurately calculate the span and load before choosing the header size.
Story 2:
A handyman was hired to replace a rotted header on a porch. He cut the new header to the same length as the old one, but he forgot to account for the overhang. When he installed the header, it was too short and did not provide proper support. The porch began to sag noticeably, and the homeowner had to hire a structural engineer to fix the problem.
Lesson: Always ensure that headers extend at least 6 inches beyond the supporting walls.
Story 3:
A carpenter was building a load-bearing wall in a basement. He used a 2x10 header for a span of 16 feet, but he forgot to double it. The header failed under the weight of the wall, causing a partial collapse. No one was injured, but the homeowner had to spend a significant amount of money on repairs.
Lesson: Always follow building codes and industry standards when choosing and installing headers.
If you are planning a project that involves header installation, it is crucial to understand the importance of choosing the right header size and installing it properly. By following the guidelines and strategies outlined in this article, you can ensure the safety and structural integrity of your projects. Remember to consult local building codes and seek professional assistance if necessary.
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