Wood T astragal

[Bill Robinson]

Anyone know the bevel on a T astragal?

Th e ones I see have a slight bevel on the "leg" of the T

[tjbnwi1]

Measure the height, put a square on the base of the T, measure the distance between edge of the square and top of leg, at the high point.

Post numbers, or enter rise and run into BuildCalc on your phone and it will give you the answer.

My guess-2.5-3º

Tom

[Bill Robinson]

Thanks Tom,

[tjbnwi]

Forgot to mention, after you enter rise and run, tap pitch, tap it a few times and a report will come up.

Tom

[Kent Brobeck]

Just about any door is beveled to 3 degrees on the strike and hinge side. The astragal would be similar.

[Kent Brobeck]

The point is you don't need build calc to figure that. The bevel on the strke side allows the door to clear the jamb. The bevel on the hinge side is there so the door does not bind on the jamb when it's closed. It gives it "fudge" room.

[tjbnwi1]

I thought the bevel on both sides of the astragal was so you could square up the non active panel. When you fab up the system, the non active bevel is installed opposite the active, the astragal is installed on the non active, the opposing angles allow it to fit flat on the face of the door.

I figured he needed to know the angle to trim a door slab to the proper angle.

(It appears the one Bill posted is dual beveled, I've seen square/bevel)

Tom

[Kent Brobeck]

I thought the bevel on both sides of the astragal was so you could square up the non active panel. When you fab up the system, the non active bevel is installed opposite the active, the astragal is installed on the non active, the opposing angles allow it to fit flat on the face of the door.

I figured he needed to know the angle to trim a door slab to the proper angle.

(It appears the one Bill posted is dual beveled, I've seen square/bevel)

Tom

Tom you are correct. At least mostly anyway. If the door comes out with the bevel on it the T astragal will then fit square on the fixed door. If the slabs come out square you'd need to bevel it. I just looked at one in my house and it looks just like the one Bill shows.

[M Smith]

I agree with the 2.5 - 3*

I've thought about this recently and it seems to me that it really could be straight/flat which would simply mimic a single door application ?? so, in essence the edge of the T-astragal would be the jamb face, which is flat, not beveled.

My theory/conclusion is that the manuf's. mill it that way to give it more mass to avoid the face/tongue from cracking as it is long grain there and takes a bit of a pounding acting as the means of a "stop".

Any thoughts ???

M Smith

[Gary Katz]

Ken was correct. That astragal is manufactured for pre-beveled doors. We hang mostly book doors that are not pre-cut, so we always bevel the inactive door before installing a dual-bevel astragal, which are the most common astragals you find. Single-bevel astragals are available but they aren't found at most lumber yards or molding suppliers. But most astragals that are kerfed for q-lon are single-bevel.

And it's 2-3 degrees.
Gary

[Bill Robinson]

Yep, it seems to be 3 degrees + on the one I used.
The detail was a bit difficult to measure so I made a few passes to get a good fit.
Next time I think I will build my own.

The one I purchased was more modern, the home this one went into had the style shown in the link.

Thanks for the comments.

[tjbnwi1]

I thought the bevel on both sides of the astragal was so you could square up the non active panel. When you fab up the system, the non active bevel is installed opposite the active, the astragal is installed on the non active, the opposing angles allow it to fit flat on the face of the door.

I figured he needed to know the angle to trim a door slab to the proper angle.

(It appears the one Bill posted is dual beveled, I've seen square/bevel)

Tom

Tom you are correct. At least mostly anyway. If the door comes out with the bevel on it the T astragal will then fit square on the fixed door. If the slabs come out square you'd need to bevel it. I just looked at one in my house and it looks just like the one Bill shows.

The supplier I use has both dual and single bevel astragals. If he would have purchase a bevel/square astragal it would have fit the slab without having to bevel it.

http://www.google.com/imgres?imgurl=...QEwAw&dur=1428

Tom