How do I install a new (free) horizontal sliding glass window into my old construction shed. It has no nailing flanges, it is 35-1/2 in. X 41-1/2 in.

If you know what the manufactures of the window is sometimes you can purchase nailing flanges. A couple of ways to do this.

If there is a way to screw on the inside of the frame jambs to secure then do that. Or

Think of the whole window unit as a pane of glass and a 3/4" ( pine) boards around the frame. This is now your rough opening you need on the 3 sides ( not the sill ). Think of the sill thickness in wood and add that to the bottom window dimensions.

Rough frame in. Add the 3/4 pine to sides and a wood sill of the thickness you want. Recess the window in that pine finished opening deep enough to use wood stops inside and out.

You need to calculate ahead of time the depth the window will sit in before you add the sill. We usually use a 2x6 and power plane a slope on that and leaving enough flat for the window to sit so there is little to now gap. I power plane slopes. If you are good with the circ saw use that to cut the slope, snad smooth before setting the wood sill sill.

The window u have is called a 'replacement window'. It is designed to go in an existing window frame.

I agree with 21 Boat. U have to build a frame. It should be 1/4'' wider and higher then window unit. Use 1/2 x3/4 for outside stop on 2 sides and top. Put bead of caulking on inside edge of stop and push window into stop.

Should be 2 mounting holes for screws on each side. Check for level and plumb before screwing down.

Chuck

:)Thanks, 21 boat, I think your answer will be very helpful. Before I begin I think I'll try to find the nailing flanges for this window.

Quote:

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Originally Posted by 21boat

If you know what the manufactures of the window is sometimes you can purchase nailing flanges. A couple of ways to do this.

If there is a way to screw on the inside of the frame jambs to secure then do that. Or

Think of the whole window unit as a pane of glass and a 3/4" ( pine) boards around the frame. This is now your rough opening you need on the 3 sides ( not the sill ). Think of the sill thickness in wood and add that to the bottom window dimensions.

Rough frame in. Add the 3/4 pine to sides and a wood sill of the thickness you want. Recess the window in that pine finished opening deep enough to use wood stops inside and out.

You need to calculate ahead of time the depth the window will sit in before you add the sill. We usually use a 2x6 and power plane a slope on that and leaving enough flat for the window to sit so there is little to now gap. I power plane slopes. If you are good with the circ saw use that to cut the slope, snad smooth before setting the wood sill sill.

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:)Thanks, Creahands, I think you answer may be very helpful.

Quote:

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Originally Posted by creahands

The window u have is called a 'replacement window'. It is designed to go in an existing window frame.

I agree with 21 Boat. U have to build a frame. It should be 1/4'' wider and higher then window unit. Use 1/2 x3/4 for outside stop on 2 sides and top. Put bead of caulking on inside edge of stop and push window into stop.

Should be 2 mounting holes for screws on each side. Check for level and plumb before screwing down.

Chuck

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This is a replacement window. It is designed to be screwed in through the jamb of the window from the inside. You MAY find pre-drilled holes in the jamb on the inside approx. 3 - 6 inches from the bottom and the top. It MAY have a foam wrap around the exterior for insulation. Build your opening 1/4" wider and taller. Insert the window in your opening and put 2 screws in each side. For trouble free operation make sure it is plumb and level. Caulk the exterior and interior and install trim as desired.