Hello!
We have just moved into our house and are now going to build a dining table.
We plan to join three glued laminated boards for the tabletop and are planning to make cross legs. What dimension of glulam beams is needed for it to be stable and hold up?
The boards are 27X300X1200MM and weigh 5 kg each, totaling 15 kg.
Thank you so much in advance!
We have just moved into our house and are now going to build a dining table.
We plan to join three glued laminated boards for the tabletop and are planning to make cross legs. What dimension of glulam beams is needed for it to be stable and hold up?
The boards are 27X300X1200MM and weigh 5 kg each, totaling 15 kg.
Thank you so much in advance!
How were you planning to use the glulam beam?
https://www.byggahus.se/forum/threa...-pa-200-kilo-perfekt-men-krokig-skiva.317628/
Here is a sturdy table
Here is a sturdy table
I'm planning to make cross legs. I have already made a table with cross legs before, but a much larger one. That table is 127*246 cm and the tabletop weighs a total of 60 kg. I've made cross legs with 90mm*90mm glulam beam. Are such strong cross legs really necessary for a table where the tabletop weighs less?J justusandersson said:
Weight is nice on a table, especially when you're making a rustic wooden table.
I suggest you make a thicker edge around it so it doesn't look so thin.
Byggmax has some different glulam dimensions, go there and touch&feel, and maybe that will help you decide what you need.
I suggest you make a thicker edge around it so it doesn't look so thin.
Byggmax has some different glulam dimensions, go there and touch&feel, and maybe that will help you decide what you need.
A vertically placed 90x90 mm glulam post can handle a load of 5 tons if it is 2.5 meters high, as table legs, it can withstand around 80 tons! You should consider that the table legs, besides the weight of the tabletop itself, should also support the weight of an adult standing on the table. This amounts to just over 100 kg total, i.e., 50 kg per cross. Glulam 90x90 means a massive overdimensioning. Buy a piece of glulam beam with the dimension of 42x180 mm and split it so you can make rustic and sufficiently strong cross legs.
Wow, I had no idea I was going so overboard with the thickness of the legs. Does the bearing capacity affect anything by the legs being in a cross and not straight? If you understand what I mean.J justusandersson said:
The load on the legs actually decreases. At the same time, a force appears that wants to twist the cross's leg towards the floor. This force must be counteracted either by a horizontal piece of wood that connects the legs at the top or by the design of the cross center itself.
If you make a table that is say 200-210 cm long from a countertop, is it sufficient with a trestle leg on each side? Or is one also needed in the middle so that the table doesn't sag? Planning to have angled braces from the middle of the trestle leg up to the underside of the tabletop.
How thick is the countertop?
A 28 mm board that is 210 cm long with the cross legs positioned 10 cm from each edge works if the material is oak or another equivalent hardwood. If the material is pine or spruce, the legs need to be moved in an additional 10 cm on each side. As a basis for calculation, I have assumed that the table should withstand a temporary 100 kg load in the middle without bending down more than 6 mm. This can, of course, be questioned, but it is quite common for people to stand on a table. They should be able to do so without risking their lives.
Yes.