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1" or .75" thickness for window trim with Hardie board and batten?

8 years ago

We are installing James Hardie board and batten siding. The Hardie battens are .75" thick. We are wondering if we should use the same thickness for the window trim or go with a slightly thicker 1" trim around the windows. We are doing a fairly simple trim design using 3.5" flat trim around the sides and top with a window sill and 3.5" apron.


Any thoughts?

Comments (18)

  • 8 years ago

    Also, would 3.5" trim around the windows be best?

    The 1" thick material also comes in a 4.5" wide flat trim. The .75" thick trim is only available in 3.5".

    House is a farmhouse style ranch.

    Lastly, what should I use to make the sill? Should I use a 2x4 and cut it down (1.5" thick)? Or should I use a 5/4 (1" thick) piece and cut it down? How should it be cut exactly?

    Thanks!

  • PRO
    8 years ago

    Think about the detail of how the siding terminates at the trim.

  • 8 years ago

    That is what I was trying to think about. Would it look better if the window trim is slightly thicker than the battens? I kind of think it would which means I should use the 1" thick trim with the .75" battens. I also plan to use .75" for corner trim and frieze board since I think those should be the same thickness as the battens.

    I don't want to make a mistake and can't figure out if the window/door trim should be .75" thick also or if it will be better to go with the 1" for the window/doors.

  • PRO
    8 years ago

    More is better in this case.

  • 8 years ago

    So I guess that means go with the 1" thick around windows/doors. Do you think I should also use the 4.5" wide trim instead of the 3.5"?

    Below is the style of trim we are trying to do.

    Menlo Oaks Residence · More Info

  • 8 years ago

    The windows protrudes about .5". So if we use the 1" trim, then it will be about .5" proud. The .75" is about .25" proud.

  • 8 years ago

    Here is our house... in case it helps to see a picture.

  • PRO
    8 years ago

    I’d go with the 1”

  • 8 years ago

    OK I have decided on 1" thick.

    However, should I do 4.5" or 3.5" for width? I'm leaning toward 4.5" so that it will have a little more presence. There is a garage on the left (not shown in picture) and I'm thinking the thicker 4.5" trim will look better on the garage too.

    Also, should the apron under the sill be the same width as the sides/header? Or should apron be slightly smaller (so if use 4.5" on sides and header should apron be 4.5" too or 3.5")?

  • PRO
    8 years ago

    I like the the wide trim, i personally dont care for an apron on exteriors, but would go with a 3.5 inch ifyou do. I would perhaps do a mock-up on one of the windows to get a visual.

  • 8 years ago

    Should the corner trim and frieze board be the same thickness as the battens (.75")? Or should the corner trim and frieze boards be thicker (1") like the window trim?

  • 8 years ago

    I checked with our architect and he thinks we should do 3.5" trim for the windows/doors because the house isn't that big (only one story). He is worried 4.5" is too big for the house. So now I'm leaning towards 3.5" x 1" as that seems like the safer option.

  • PRO
    8 years ago

    Listen to your architect. It's why you have her/him.

  • 8 years ago

    Help... I still don't know what thickness to select for the corners and frieze board. We are going with 3.5"x1" thick trim for the windows with a 1.5" thick sill. The architect has not provided feedback or the corner trim or frieze board.

    Should corner/frieze be 1" thick like the windows? Or would it look better I they are .75" thick like the battens?

  • PRO
    8 years ago

    I think the corners could be 3/4 since the batton part should not be butted to the corner. You are running the frieze board along the foundation? I think 1” would be better there to give a reveal.

  • 8 years ago

    ok. I think .75" for corner makes sense. the frieze board is actually at the top (under the eaves). I think I am going to go with .75" for that too so it is flush with corner trim.

    Thank you everyone!

    Does anyone know which is better quality between Windsor One and Radiata Pine? Both are a treated exterior pine.

  • PRO
    8 years ago

    Radiata pine is not treated unless you ordering it so or from a manufacturer that treats it then resells it treated. I like Windsor’s whiskey but I am not familiar with its wood products. It looks to be a treated and. Primed pine product. I’m not sure what radiata pine product you are using and not familiar with Windsor wood products . I do like that the Window is factory primed but not sure if I like a pine product for exterior trim.

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