Designing and Installing Window Headers: A Guide

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Sash Windows Refurbish specializes in providing repair and restoration services for wooden windows and doors in the UK, as well as various types of carpentry. During the process of fulfilling orders, we utilize a range of tools and paints, including saws, sprays, primers, resins, and adhesives. With more than 20 years of experience in carpentry, we have tested and used various brands and types of work tools, making us well-equipped to offer helpful advice on selecting the right tools and paints for your needs. Read more ...

Elevating the aesthetic appeal of a contemporary home requires thoughtful accents, and one subtle yet impactful addition is the incorporation of door or window headers. The challenge lies in effectively installing these headers to emulate the appearance of robust wooden beams.

A traditional window header, meticulously trimmed and installed to create the illusion of a solid wooden beam, serves as a timeless touch. The key to maximizing the effectiveness of our products is to replicate how authentic construction practices would integrate such elements into a house.

Within the interior of a residence, faux beams should mirror the functionality of real wood beams supporting the ceiling. Similarly, rafter tails on a roof should resemble the overhanging tails of genuine wooden roofing beams.

Enhancing the authenticity is the strategic use of headers, which replicate the placement of solid timber beams above window openings in traditional dwellings.

A closer examination reveals the nuanced design, with the top plane extending beyond the bottom plane, tailored to fit the available space.

In historical homes, these substantial wooden beams are visible from the exterior, and our polyurethane L-headers aim to recreate this look in modern home constructions.

L-headers, shaped like a two-sided beam in an L-form, seamlessly integrate against the upper edge of a window, with the pattern exposed on the top of the window opening.

The installation process is straightforward and time-efficient, typically taking less than an hour. Notably lightweight, these headers can be affixed using standard wood screws and construction adhesive, achieving a nearly indistinguishable resemblance to authentic beams once in place.

A standard installation example showcases the attachment of the header with screws and adhesive, followed by meticulous spackling around the edges. The only critical detail in this process involves cutting the L-beams to shape before installation.

Window headers are initially provided with equal lengths for both the top and bottom sections. However, achieving the appearance of a solid beam necessitates extending the top section beyond the window opening, requiring trimming of the bottom section.

Thankfully, these pieces are crafted from high-density polyurethane foam, allowing for easy shaping with a standard wood saw.

To tailor the beams to the window dimensions, measure the window opening and mark the bottom plane, ensuring an equal overhang of the top plane on either side. Once the cuts are made, they seamlessly integrate into the window installation, resulting in an aesthetically pleasing transformation.

FAQs

What type of wood do you use for headers?

The type of wood used for headers in construction often depends on local building codes and project requirements. Common choices include Douglas fir, southern yellow pine, or engineered wood products like laminated veneer lumber.

How much weight can a window header hold?

The weight a window header can hold varies based on factors like the header’s material, size, and design. Typically, headers are designed to bear the load of the structure above the window and should be specified to meet the structural demands of the specific installation.

Weight supported by double or triple wood headers.

Do you need a header to install a window?

While not all windows require a header, it is a crucial component for openings in load-bearing walls. The header redistributes the weight from above the window to the adjacent framing, ensuring structural integrity and preventing sagging or failure.

Certainly, windows with widths less than the distance between studs typically don’t require additional structural support. When situated in a non-load-bearing wall, proficient carpenters often incorporate a 2×6 (with a spacer) as a “header” to counteract any potential sag in the top plate(s). This not only provides stability but also serves as a secure attachment point for trim and curtain rails during the finishing process.

What is the point of a window header?

The primary purpose of a window header is to provide structural support and distribute the weight of the building above the window opening. It helps prevent sagging or collapse, ensuring the window and the surrounding wall maintain their integrity over time.

About the author

Glen Ramsey, who presently holds the positions of customer support and content manager, is a cherished member of the Sash Window Refurbish team. He is in a unique position to provide advice on all questions pertaining to the renovation of historic windows because he has a wealth of experience in all elements of window renovation, dealing with clients regularly and assisting them in choosing the best window-related course of action. He oversees the creation of information for all of our platforms in his capacity as content manager, including web content and other materials. Glen has witnessed the whole gamut of Sash Window Refurbish's window restoration activities, from our work on significant listed Georgian homes to a wide variety of smaller-scale private residential projects.

Testimonials

My technician Andrew replaced all my sash windows that had rotten sills. Accessing the rotten sills was not an easy task. He explained to me what needed to be done in order to fix the problem. He is a great person and I’m happy that he was the one who did the job. He is reliable, tidy, friendly and very professional. I highly recommend him.

Trev

Client

I hired Andrew and Alex a while back to repair my damaged sash windows. They were was very considerate and very patient as he did his job. A few days ago, I had another problem with one of my sash lock keys and I called him again to come and fix the problem. I’m very impressed that Liam responded quickly and he not only fixed the problem but he also gave me a spare key. What a great after sales service!

Alan W.

Client

I’m very impressed with the new windows that Andrew installed and also the reconditioning job that he did on other sash windows. The quality of his work is by far more superior than what we got when we hired another company a few years back. We will certainly hire him again if any window work arises

Kelly (Sleaford)

Client

Our decorator referred us to Andrew because some of the work needed a window expert. Andrew together with our decorator did a fantastic job. The work was done efficiently and to the highest standards. Andrew is understanding, committed and very professional. I recommend him without any hesitation.

Steaven Reader

Client

Alex did a great job in fixing windows in our terraced house. The windows were broken, frames damaged and the wood was also rotten. Alex's job was high quality and he did it pretty fast. I was also very impressed that he was considerate of my son’s asthma condition and maintained cleanliness. Top work.

Alice

Client

Andrew just recently replaced three sash windows in my Edwardian house. He also repaired and replaced some sills and draught proofed three windows. In addition to that, he also did some carpentry work. What I like the most about Liam is that he did a clean job. He is very professional and always updated me about the timescales and costs. He also did his job with minimal disruptions. I highly recommend him.

Cris M.

Client