I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?

Many thanks

Chris

wrote:
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?

Many thanks

Glass has a density of about 2.4g/cc.

Say 6mm glass, 2 panes, for a total of 12mm, and an area of 1.3 square
meters, that's about 16l of glass, or some 40Kg.

In article . com,
writes
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?

A google for glass +weight gets this as the first hit:
http://www.anver.com/document/vacuum...late_guide.htm
It's plate glass but it's a start, I expect your panel will be 2x4mm
toughened, weight of the spacers probably negligible.
--
fred

fred wrote:
In article . com,
writes
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?


What was the website for timber densities?

In article . com,
says...
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?

Many thanks

Chris


This general guide is pretty accurate:-

2.5kg per square metre per 1mm thickness.

So 1 square metre of 4mm = 1 x 2.5 x 4 = 10kg (6mm = 15kg)

Double the number for a sealed unit. As a previous poster has said, the
weight of spacer bars, dessicant, and packers is insignificant.


--
Ziggur

"S'ils te mordent, mords-les"

On 25 Aug 2005 10:17:35 -0700, "
wrote:

I anticipate using a sealed, gas-filled unit

Fill 'em with helium and they won't weigh so much..

In article .com
, writes

fred wrote:
In article . com,
writes
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?


What was the website for timber densities?

I didn't write that . . .
--
fred

--s-p-o-n-i-x-- wrote:
On 25 Aug 2005 10:17:35 -0700, "
wrote:

I anticipate using a sealed, gas-filled unit

Fill 'em with helium and they won't weigh so much..

However, the thermal conductivity will go up lots, vastly worse than air.

wrote:
fred wrote:
In article . com,
writes
I'm having some wooden doors made, and it's important that I keep the
overall weight to below 60kg (maximum load for the sliding track system
that will support the doors).

The doors open into the garden, and in order to comply with UK building
regs, I anticipate using a sealed, gas-filled unit with K glass, and a
24mm gap. The dimension of the unit will be approx 73 x 163 cm.

The wood weight I can work out, thanks to a bit of calculation and a
handy web site giving densities of different woods.

Is there a similar site that might help me with the glass unit?


What was the website for timber densities?
Try these:


http://www.mcelwee.net/html/densitie...materials.html

http://www.engineeringtoolbox.com/wo...ity-24_40.html


Chris

Thanks for your help - I've now done the calculations. The only
question now is, which hard wood to use for a set of French Windows
(facing into sheltered garden, in London)

Kind regards,

Chris